Cadillac Seville - Revision history

Lincolnfan2010 at 20:49, 9 August 2010

2010-08-09T20:49:24Z

← Older revision		Revision as of 20:49, 9 August 2010
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	==1st Generation (~~1976-79~~)==		==1st Generation (1976–1979)==
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	\| Production		\| Production
	\| ~~1976-1979~~		\| 1976–1979
	\|- style="vertical-align:top;"		\|- style="vertical-align:top;"
	\| Class		\| Class
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	{{-}}		{{-}}

	==2nd Generation (~~1980-85~~)==		==2nd Generation (1980–1985)==
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	\|- style="text-align:center; background:#f0f0f0;"		\|- style="text-align:center; background:#f0f0f0;"
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	\|- style="vertical-align:top; background:#f0f0f0;"		\|- style="vertical-align:top; background:#f0f0f0;"
	\| Production		\| Production
	\| ~~1980-1985~~		\| 1980–1985
	\|- style="vertical-align:top;"		\|- style="vertical-align:top;"
	\| Class		\| Class
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	{{-}}		{{-}}

	==3rd Generation (~~1986-1991~~)==		==3rd Generation (1986–1991)==
	{\| border=0 cellspacing=0 cellpadding=4 style="float:right; margin:0 0 .5em 1em; width:250px; background:#fff; border-collapse:collapse; border:1px solid #999; font-size:83%; line-height:1.5; " summary="Infobox Automobile"		{\| border=0 cellspacing=0 cellpadding=4 style="float:right; margin:0 0 .5em 1em; width:250px; background:#fff; border-collapse:collapse; border:1px solid #999; font-size:83%; line-height:1.5; " summary="Infobox Automobile"
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	\|- style="vertical-align:top; background:#f0f0f0;"		\|- style="vertical-align:top; background:#f0f0f0;"
	\| Production		\| Production
	\| ~~1986-1991~~		\| 1986–1991
	\|- style="vertical-align:top;"		\|- style="vertical-align:top;"
	\| Class		\| Class
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	{{-}}		{{-}}

	==4th Generation (~~1992-97~~)==		==4th Generation (1992–1997)==
	{\| border=0 cellspacing=0 cellpadding=4 style="float:right; margin:0 0 .5em 1em; width:250px; background:#fff; border-collapse:collapse; border:1px solid #999; font-size:83%; line-height:1.5; " summary="Infobox Automobile"		{\| border=0 cellspacing=0 cellpadding=4 style="float:right; margin:0 0 .5em 1em; width:250px; background:#fff; border-collapse:collapse; border:1px solid #999; font-size:83%; line-height:1.5; " summary="Infobox Automobile"
	\|- style="text-align:center; background:#f0f0f0;"		\|- style="text-align:center; background:#f0f0f0;"
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	\|- style="vertical-align:top; background:#f0f0f0;"		\|- style="vertical-align:top; background:#f0f0f0;"
	\| Production		\| Production
	\| ~~1992-1997~~		\| 1992–1997
	\|- style="vertical-align:top;"		\|- style="vertical-align:top;"
	\| Class		\| Class
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	{{-}}		{{-}}

	==5th Generation (~~1998-2004~~)==		==5th Generation (1998–2004)==
	{\| border=0 cellspacing=0 cellpadding=4 style="float:right; margin:0 0 .5em 1em; width:250px; background:#fff; border-collapse:collapse; border:1px solid #999; font-size:83%; line-height:1.5; " summary="Infobox Automobile"		{\| border=0 cellspacing=0 cellpadding=4 style="float:right; margin:0 0 .5em 1em; width:250px; background:#fff; border-collapse:collapse; border:1px solid #999; font-size:83%; line-height:1.5; " summary="Infobox Automobile"
	\|- style="text-align:center; background:#f0f0f0;"		\|- style="text-align:center; background:#f0f0f0;"
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	\|- style="vertical-align:top; background:#f0f0f0;"		\|- style="vertical-align:top; background:#f0f0f0;"
	\| Production		\| Production
	\| ~~1998-2004~~		\| 1998–2004
	\|- style="vertical-align:top;"		\|- style="vertical-align:top;"
	\| Class		\| Class

Lincolnfan2010: /* External Links */

2010-04-01T22:37:17Z

External Links

← Older revision		Revision as of 22:37, 1 April 2010
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	==External Links==		==External Links==

	[[Category:Classic cars]] [[Category:1970s Automobiles]] [[Category:1980s Automobiles]] [[Category:1990s Automobiles]] [[Category:2000s Automobiles]]		[[Category:Discontinued Models]] [[Category:Classic cars]] [[Category:1970s Automobiles]] [[Category:1980s Automobiles]] [[Category:1990s Automobiles]] [[Category:2000s Automobiles]]

Bahador: /* 1st Generation (1976-79) */

2009-07-12T21:16:37Z

1st Generation (1976-79)

← Older revision		Revision as of 21:16, 12 July 2009
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	Another noteworthy 1978 addition was the Seville's optional Delco trip computer. This presaged modern trip computers and could be called upon to provide information on instant fuel mileage, overall fuel mileage, fuel range, and estimated time of arrival, at an additional cost of $ 920.00.		Another noteworthy 1978 addition was the Seville's optional Delco trip computer. This presaged modern trip computers and could be called upon to provide information on instant fuel mileage, overall fuel mileage, fuel range, and estimated time of arrival, at an additional cost of $ 920.00.

			The Seville Cadillac was manufactured in Iran under the brand name of "Cadillac Iran" from 1978 to 1987 by Pars Khodro, which was known as "Iran General Motors" before the Islamic Revolution. A total of 2653 Cadillacs were made in Iran during this period. This made Iran the only country assembling Cadillacs outside the US until 1997 when Cadillac Catera was based on Opel Omega and built in Germany for US market. Cadillac BLS, built in Sweden for European market but never for US market, was introduced in 2006. Even though Cadillac Allante had its Italian origin, its final assembly was done in the USA.

	<gallery>		<gallery>
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	{{-}}		{{-}}

	==2nd Generation (1980-85)==		==2nd Generation (1980-85)==
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Rawja: /* 2nd Generation (1980-85) */

2009-05-16T15:02:43Z

2nd Generation (1980-85)

← Older revision		Revision as of 15:02, 16 May 2009
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	In 1981 Sevilles had 2 new engines available. In addition to the 350 V8 diesel and the 6.0 V8, a 105 hp [[Buick]]-built 4.1L (252 cid) V6, based on the Buick 3.8 L V6 became available (which while reliable was not up to the task of propelling such a heavy automobile) and the "V-8-6-4", a V8 engine based on the 6.0L V8. In theory the engine management computer would assess the loading on the drivetrain and deactivate cylinders that it deemed unnecessary to keep the car powered most efficiently. It was an idea quite ahead of its time, and somewhat ironically [[GM]] and [[Chrysler]] are now using a similar technology in their V8s today. Unfortunately the electronic technology available in 1981 just wasn't up to the task, and the V-8-6-4 engine was unceremoniously dumped after just one year. It was a troublesome engine management system, and it was generally disconnected by servicing dealers, making the engine run on all 8 cylinders at all times. A 3-speed automatic remained the sole transmission on the diesel, a 4-speed automatic was standard on the other engines.		In 1981 Sevilles had 2 new engines available. In addition to the 350 V8 diesel and the 6.0 V8, a 105 hp [[Buick]]-built 4.1L (252 cid) V6, based on the Buick 3.8 L V6 became available (which while reliable was not up to the task of propelling such a heavy automobile) and the "V-8-6-4", a V8 engine based on the 6.0L V8. In theory the engine management computer would assess the loading on the drivetrain and deactivate cylinders that it deemed unnecessary to keep the car powered most efficiently. It was an idea quite ahead of its time, and somewhat ironically [[GM]] and [[Chrysler]] are now using a similar technology in their V8s today. Unfortunately the electronic technology available in 1981 just wasn't up to the task, and the V-8-6-4 engine was unceremoniously dumped after just one year. It was a troublesome engine management system, and it was generally disconnected by servicing dealers, making the engine run on all 8 cylinders at all times. A 3-speed automatic remained the sole transmission on the diesel, a 4-speed automatic was standard on the other engines.

	An all-new standard engine was introduced for the Seville in 1982, the "HT-4100" (HT standing for "High Technology"). It was a 4.1L V8, designed for transverse, front wheel drive applications and was originally slated for the 1983 model year for a new line of downsized Cadillac sedans. Delays in the downsizing program postponed the introduction of those models until 1985, and as a result of the forced cancellation of the V-8-6-4 engine the new powerplant was rushed into production for the 1982 model year. For its time, the engine and its electronic control setup were quite sophisticated. The HT4100 used an ECM that for the first time incorporated a detailed on-board computer with every parameter of engine performance capable of being displayed on the instrument panel's climate control display while the car was being driven. Unfortunately ~~for Cadillac and their customers~~ the HT4100 was prone to failure of the intake manifold gasket and subsequent coolant infiltration of the engine oil which destroyed the internals of the engine; Additionally, any overheating episode inevitably reduced the aluminum HT4100 to an un-repairable lump. The HT4100 may not have been the most successful engine to sit under the hood of a Cadillac, but buyers were no more satisfied with the disastrous [[Oldsmobile]] 5.7 L Diesel or the overwhelmed [[Buick]] 4.1L V6.		An all-new standard engine was introduced for the Seville in 1982, the "HT-4100" (HT standing for "High Technology"). It was a 4.1L V8, designed for transverse, front wheel drive applications and was originally slated for the 1983 model year for a new line of downsized Cadillac sedans. Delays in the downsizing program postponed the introduction of those models until 1985, and as a result of the forced cancellation of the V-8-6-4 engine the new powerplant was rushed into production for the 1982 model year. For its time, the engine and its electronic control setup were quite sophisticated. The HT4100 used an ECM that for the first time incorporated a detailed on-board computer with every parameter of engine performance capable of being displayed on the instrument panel's climate control display while the car was being driven. Unfortunately the HT4100 was prone to failure of the intake manifold gasket and subsequent coolant infiltration of the engine oil which destroyed the internals of the engine; Additionally, any overheating episode inevitably reduced the aluminum HT4100 to an un-repairable lump. The HT4100 may not have been the most successful engine to sit under the hood of a Cadillac, but buyers were no more satisfied with the disastrous [[Oldsmobile]] 5.7 L Diesel or the overwhelmed [[Buick]] 4.1L V6.

	To Cadillac's credit they extended drivetrain warranties and replaced a huge number of engines at their expense even on cars outside of the warranty period, but those continuing major drivetrain problems coupled with the then-lagging quality and reliability of all American automobiles caused nearly-irreparable damage to the [[Cadillac]] brand.		To Cadillac's credit they extended drivetrain warranties and replaced a huge number of engines at their expense even on cars outside of the warranty period, but those continuing major drivetrain problems coupled with the then-lagging quality and reliability of all American automobiles caused nearly-irreparable damage to the [[Cadillac]] brand.

Rawja: /* 2nd Generation (1980-85) */

2009-05-16T14:59:26Z

2nd Generation (1980-85)

← Older revision		Revision as of 14:59, 16 May 2009
Line 163:		Line 163:
	In 1981 Sevilles had 2 new engines available. In addition to the 350 V8 diesel and the 6.0 V8, a 105 hp [[Buick]]-built 4.1L (252 cid) V6, based on the Buick 3.8 L V6 became available (which while reliable was not up to the task of propelling such a heavy automobile) and the "V-8-6-4", a V8 engine based on the 6.0L V8. In theory the engine management computer would assess the loading on the drivetrain and deactivate cylinders that it deemed unnecessary to keep the car powered most efficiently. It was an idea quite ahead of its time, and somewhat ironically [[GM]] and [[Chrysler]] are now using a similar technology in their V8s today. Unfortunately the electronic technology available in 1981 just wasn't up to the task, and the V-8-6-4 engine was unceremoniously dumped after just one year. It was a troublesome engine management system, and it was generally disconnected by servicing dealers, making the engine run on all 8 cylinders at all times. A 3-speed automatic remained the sole transmission on the diesel, a 4-speed automatic was standard on the other engines.		In 1981 Sevilles had 2 new engines available. In addition to the 350 V8 diesel and the 6.0 V8, a 105 hp [[Buick]]-built 4.1L (252 cid) V6, based on the Buick 3.8 L V6 became available (which while reliable was not up to the task of propelling such a heavy automobile) and the "V-8-6-4", a V8 engine based on the 6.0L V8. In theory the engine management computer would assess the loading on the drivetrain and deactivate cylinders that it deemed unnecessary to keep the car powered most efficiently. It was an idea quite ahead of its time, and somewhat ironically [[GM]] and [[Chrysler]] are now using a similar technology in their V8s today. Unfortunately the electronic technology available in 1981 just wasn't up to the task, and the V-8-6-4 engine was unceremoniously dumped after just one year. It was a troublesome engine management system, and it was generally disconnected by servicing dealers, making the engine run on all 8 cylinders at all times. A 3-speed automatic remained the sole transmission on the diesel, a 4-speed automatic was standard on the other engines.

	An all-new standard engine was introduced for the Seville in 1982, the "HT-4100" (HT standing for "High Technology"). It was a 4.1L V8, designed for transverse, front wheel drive applications~~. It~~ was originally slated for 1983 ~~and~~ a new line of downsized Cadillac sedans. Delays in the downsizing program postponed the introduction of those models until 1985, and as a result of the forced cancellation of the V-8-6-4 engine the new powerplant was rushed into production for the 1982 model year. For its time, the engine and its electronic control setup were quite sophisticated. The HT4100 used an ECM that for the first time incorporated a detailed on-board computer with every parameter of engine performance capable of being displayed on the instrument panel's climate control display while the car was being driven. Unfortunately for Cadillac and their customers the HT4100 was prone to failure of the intake manifold gasket and subsequent coolant infiltration of the engine oil which destroyed the internals of the engine; Additionally, any overheating episode inevitably reduced the aluminum HT4100 to an un-repairable lump. The HT4100 may not have been the most successful engine to sit under the hood of a Cadillac, but buyers were no more satisfied with the disastrous [[Oldsmobile]] 5.7 L Diesel or the overwhelmed [[Buick]] 4.1L V6.		An all-new standard engine was introduced for the Seville in 1982, the "HT-4100" (HT standing for "High Technology"). It was a 4.1L V8, designed for transverse, front wheel drive applications and was originally slated for the 1983 model year for a new line of downsized Cadillac sedans. Delays in the downsizing program postponed the introduction of those models until 1985, and as a result of the forced cancellation of the V-8-6-4 engine the new powerplant was rushed into production for the 1982 model year. For its time, the engine and its electronic control setup were quite sophisticated. The HT4100 used an ECM that for the first time incorporated a detailed on-board computer with every parameter of engine performance capable of being displayed on the instrument panel's climate control display while the car was being driven. Unfortunately for Cadillac and their customers the HT4100 was prone to failure of the intake manifold gasket and subsequent coolant infiltration of the engine oil which destroyed the internals of the engine; Additionally, any overheating episode inevitably reduced the aluminum HT4100 to an un-repairable lump. The HT4100 may not have been the most successful engine to sit under the hood of a Cadillac, but buyers were no more satisfied with the disastrous [[Oldsmobile]] 5.7 L Diesel or the overwhelmed [[Buick]] 4.1L V6.

	To Cadillac's credit they extended drivetrain warranties and replaced a huge number of engines at their expense even on cars outside of the warranty period, but those continuing major drivetrain problems coupled with the then-lagging quality and reliability of all American automobiles caused nearly-irreparable damage to the [[Cadillac]] brand.		To Cadillac's credit they extended drivetrain warranties and replaced a huge number of engines at their expense even on cars outside of the warranty period, but those continuing major drivetrain problems coupled with the then-lagging quality and reliability of all American automobiles caused nearly-irreparable damage to the [[Cadillac]] brand.

Rawja: /* 2nd Generation (1980-85) */

2009-05-16T14:58:07Z

2nd Generation (1980-85)

← Older revision		Revision as of 14:58, 16 May 2009
Line 163:		Line 163:
	In 1981 Sevilles had 2 new engines available. In addition to the 350 V8 diesel and the 6.0 V8, a 105 hp [[Buick]]-built 4.1L (252 cid) V6, based on the Buick 3.8 L V6 became available (which while reliable was not up to the task of propelling such a heavy automobile) and the "V-8-6-4", a V8 engine based on the 6.0L V8. In theory the engine management computer would assess the loading on the drivetrain and deactivate cylinders that it deemed unnecessary to keep the car powered most efficiently. It was an idea quite ahead of its time, and somewhat ironically [[GM]] and [[Chrysler]] are now using a similar technology in their V8s today. Unfortunately the electronic technology available in 1981 just wasn't up to the task, and the V-8-6-4 engine was unceremoniously dumped after just one year. It was a troublesome engine management system, and it was generally disconnected by servicing dealers, making the engine run on all 8 cylinders at all times. A 3-speed automatic remained the sole transmission on the diesel, a 4-speed automatic was standard on the other engines.		In 1981 Sevilles had 2 new engines available. In addition to the 350 V8 diesel and the 6.0 V8, a 105 hp [[Buick]]-built 4.1L (252 cid) V6, based on the Buick 3.8 L V6 became available (which while reliable was not up to the task of propelling such a heavy automobile) and the "V-8-6-4", a V8 engine based on the 6.0L V8. In theory the engine management computer would assess the loading on the drivetrain and deactivate cylinders that it deemed unnecessary to keep the car powered most efficiently. It was an idea quite ahead of its time, and somewhat ironically [[GM]] and [[Chrysler]] are now using a similar technology in their V8s today. Unfortunately the electronic technology available in 1981 just wasn't up to the task, and the V-8-6-4 engine was unceremoniously dumped after just one year. It was a troublesome engine management system, and it was generally disconnected by servicing dealers, making the engine run on all 8 cylinders at all times. A 3-speed automatic remained the sole transmission on the diesel, a 4-speed automatic was standard on the other engines.

	An all-new standard engine was introduced for the Seville in 1982, the "HT-4100" (HT standing for "High Technology"). It was a 4.1L V8, designed for transverse, front wheel drive applications. It was originally slated for 1983 and a new line of downsized Cadillac sedans. Delays in the downsizing program postponed the introduction of those models until 1985, and as a result of the forced cancellation of the V-8-6-4 engine the new powerplant was rushed into production for the 1982 model year. For its time, the engine and its electronic control setup were quite sophisticated. The HT4100 used an ECM that for the first time incorporated a detailed on-board computer with every parameter of engine performance capable of being displayed on the instrument panel's climate control display while the car was being driven. Unfortunately for Cadillac and their customers the HT4100 was prone to failure of the intake manifold gasket, and subsequent coolant infiltration of the engine oil. ~~Any~~ overheating episode inevitably reduced the aluminum HT4100 to an un-repairable lump. The HT4100 may not have been the most successful engine to sit under the hood of a Cadillac, but buyers were no more satisfied with the disastrous [[Oldsmobile]] 5.7 L Diesel or the overwhelmed [[Buick]] 4.1L V6.		An all-new standard engine was introduced for the Seville in 1982, the "HT-4100" (HT standing for "High Technology"). It was a 4.1L V8, designed for transverse, front wheel drive applications. It was originally slated for 1983 and a new line of downsized Cadillac sedans. Delays in the downsizing program postponed the introduction of those models until 1985, and as a result of the forced cancellation of the V-8-6-4 engine the new powerplant was rushed into production for the 1982 model year. For its time, the engine and its electronic control setup were quite sophisticated. The HT4100 used an ECM that for the first time incorporated a detailed on-board computer with every parameter of engine performance capable of being displayed on the instrument panel's climate control display while the car was being driven. Unfortunately for Cadillac and their customers the HT4100 was prone to failure of the intake manifold gasket and subsequent coolant infiltration of the engine oil which destroyed the internals of the engine; Additionally, any overheating episode inevitably reduced the aluminum HT4100 to an un-repairable lump. The HT4100 may not have been the most successful engine to sit under the hood of a Cadillac, but buyers were no more satisfied with the disastrous [[Oldsmobile]] 5.7 L Diesel or the overwhelmed [[Buick]] 4.1L V6.

	To Cadillac's credit they extended drivetrain warranties and replaced a huge number of engines at their expense even on cars outside of the warranty period, but those continuing major drivetrain problems coupled with the then-lagging quality and reliability of all American automobiles caused nearly-irreparable damage to the [[Cadillac]] brand.		To Cadillac's credit they extended drivetrain warranties and replaced a huge number of engines at their expense even on cars outside of the warranty period, but those continuing major drivetrain problems coupled with the then-lagging quality and reliability of all American automobiles caused nearly-irreparable damage to the [[Cadillac]] brand.

Rawja: /* 2nd Generation (1980-85) */

2009-05-16T14:54:23Z

2nd Generation (1980-85)

← Older revision		Revision as of 14:54, 16 May 2009
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	Neoclassical styling cues aside, the Seville was a thoroughly modern automobile featuring a fully [[independent suspension]], 4-wheel [[disc brakes]] and a host of electronic features such as Electronic on-board vehicle diagnostics, [[Climate Control\|electronic climate control]], gas mileage computer, [[twilight sentinel]] to name but a few. In 1981 "memory seats", a feature not seen on a Cadillac since the 1957 Eldorado Brougham, became available again. These seats allowed two memorized positions to be recalled at the touch of a button. Also new for '81 was a digital instrument cluster.		Neoclassical styling cues aside, the Seville was a thoroughly modern automobile featuring a fully [[independent suspension]], 4-wheel [[disc brakes]] and a host of electronic features such as Electronic on-board vehicle diagnostics, [[Climate Control\|electronic climate control]], gas mileage computer, [[twilight sentinel]] to name but a few. In 1981 "memory seats", a feature not seen on a Cadillac since the 1957 Eldorado Brougham, became available again. These seats allowed two memorized positions to be recalled at the touch of a button. Also new for '81 was a digital instrument cluster.

	The Elegante option package continued to be available with a long list of otherwise optional features as standard as well as exclusive dual front bucket "french-stitched" leather seats, two-tone exterior paint combinations separated by a sweeping stainless steel accent moulding (moulding made standard in 1981 on all Sevilles), a leather-wrapped steering wheel and a center console with a folding armrest, a writing tablet, and space for a phone or cassette tapes, and exclusive "Tampico" carpeting. Pricing for the Elegante package topped out at $ 3,995.00 in 1985.		The Elegante option package continued to be available with a long list of otherwise optional features as standard as well as exclusive dual front bucket "french-stitched" leather seats, two-tone exterior paint combinations separated by a sweeping stainless steel accent moulding (moulding made standard in 1981 on all Sevilles), a leather-wrapped steering wheel and a center console with a folding armrest, a writing tablet, and space for a phone or cassette tapes, and exclusive "Tampico" carpeting. Pricing for the Elegante option package topped out at $ 3,995.00 in 1985.

	Upon the second generation Seville's introduction the The [[Oldsmobile]] 350 V8 diesel engine was standard, but the buying public was already turning away from [[GM]]'s diesels and most instead opted for the Cadillac-built 140 hp 6.0L (368 cid) V8, which was available as a credit option, and many diesel models were later engine-swapped to rid the cars of the troublesome diesel.		Upon the second generation Seville's introduction the The [[Oldsmobile]] 350 V8 diesel engine was standard, but the buying public was already turning away from [[GM]]'s diesels and most instead opted for the Cadillac-built 140 hp 6.0L (368 cid) V8, which was available as a credit option, and many diesel models were later engine-swapped to rid the cars of the troublesome diesel.

Rawja: /* 2nd Generation (1980-85) */

2009-05-16T14:53:53Z

2nd Generation (1980-85)

← Older revision		Revision as of 14:53, 16 May 2009
Line 163:		Line 163:
	In 1981 Sevilles had 2 new engines available. In addition to the 350 V8 diesel and the 6.0 V8, a 105 hp [[Buick]]-built 4.1L (252 cid) V6, based on the Buick 3.8 L V6 became available (which while reliable was not up to the task of propelling such a heavy automobile) and the "V-8-6-4", a V8 engine based on the 6.0L V8. In theory the engine management computer would assess the loading on the drivetrain and deactivate cylinders that it deemed unnecessary to keep the car powered most efficiently. It was an idea quite ahead of its time, and somewhat ironically [[GM]] and [[Chrysler]] are now using a similar technology in their V8s today. Unfortunately the electronic technology available in 1981 just wasn't up to the task, and the V-8-6-4 engine was unceremoniously dumped after just one year. It was a troublesome engine management system, and it was generally disconnected by servicing dealers, making the engine run on all 8 cylinders at all times. A 3-speed automatic remained the sole transmission on the diesel, a 4-speed automatic was standard on the other engines.		In 1981 Sevilles had 2 new engines available. In addition to the 350 V8 diesel and the 6.0 V8, a 105 hp [[Buick]]-built 4.1L (252 cid) V6, based on the Buick 3.8 L V6 became available (which while reliable was not up to the task of propelling such a heavy automobile) and the "V-8-6-4", a V8 engine based on the 6.0L V8. In theory the engine management computer would assess the loading on the drivetrain and deactivate cylinders that it deemed unnecessary to keep the car powered most efficiently. It was an idea quite ahead of its time, and somewhat ironically [[GM]] and [[Chrysler]] are now using a similar technology in their V8s today. Unfortunately the electronic technology available in 1981 just wasn't up to the task, and the V-8-6-4 engine was unceremoniously dumped after just one year. It was a troublesome engine management system, and it was generally disconnected by servicing dealers, making the engine run on all 8 cylinders at all times. A 3-speed automatic remained the sole transmission on the diesel, a 4-speed automatic was standard on the other engines.

	An all-new standard engine was introduced for the Seville in 1982, the "HT-4100" (HT standing for "High Technology"). It was a 4.1L V8, designed for transverse, front wheel drive applications. It was originally slated for 1983 and a new line of downsized Cadillac sedans. Delays in the downsizing program postponed the introduction of those models until 1985, and as a result of the forced cancellation of the V-8-6-4 engine the new ~~engine~~ was rushed into production for the 1982 model year. For its time, the engine and its electronic control setup were quite sophisticated. The HT4100 used an ECM that for the first time incorporated a detailed on-board computer with every parameter of engine performance capable of being displayed on the instrument panel's climate control display while the car was being driven. Unfortunately for Cadillac and their customers the HT4100 was prone to failure of the intake manifold gasket, and subsequent coolant infiltration of the engine oil. Any overheating episode inevitably reduced the aluminum HT4100 to an un-repairable lump. The HT4100 may not have been the most successful engine to sit under the hood of a Cadillac, but buyers were no more satisfied with the disastrous [[Oldsmobile]] 5.7 L Diesel or the overwhelmed [[Buick]] 4.1L V6.		An all-new standard engine was introduced for the Seville in 1982, the "HT-4100" (HT standing for "High Technology"). It was a 4.1L V8, designed for transverse, front wheel drive applications. It was originally slated for 1983 and a new line of downsized Cadillac sedans. Delays in the downsizing program postponed the introduction of those models until 1985, and as a result of the forced cancellation of the V-8-6-4 engine the new powerplant was rushed into production for the 1982 model year. For its time, the engine and its electronic control setup were quite sophisticated. The HT4100 used an ECM that for the first time incorporated a detailed on-board computer with every parameter of engine performance capable of being displayed on the instrument panel's climate control display while the car was being driven. Unfortunately for Cadillac and their customers the HT4100 was prone to failure of the intake manifold gasket, and subsequent coolant infiltration of the engine oil. Any overheating episode inevitably reduced the aluminum HT4100 to an un-repairable lump. The HT4100 may not have been the most successful engine to sit under the hood of a Cadillac, but buyers were no more satisfied with the disastrous [[Oldsmobile]] 5.7 L Diesel or the overwhelmed [[Buick]] 4.1L V6.

	To Cadillac's credit they extended drivetrain warranties and replaced a huge number of engines at their expense even on cars outside of the warranty period, but those continuing major drivetrain problems coupled with the then-lagging quality and reliability of all American automobiles caused nearly-irreparable damage to the [[Cadillac]] brand.		To Cadillac's credit they extended drivetrain warranties and replaced a huge number of engines at their expense even on cars outside of the warranty period, but those continuing major drivetrain problems coupled with the then-lagging quality and reliability of all American automobiles caused nearly-irreparable damage to the [[Cadillac]] brand.

Rawja: /* 2nd Generation (1980-85) */

2009-05-16T14:52:44Z

2nd Generation (1980-85)

← Older revision		Revision as of 14:52, 16 May 2009
Line 163:		Line 163:
	In 1981 Sevilles had 2 new engines available. In addition to the 350 V8 diesel and the 6.0 V8, a 105 hp [[Buick]]-built 4.1L (252 cid) V6, based on the Buick 3.8 L V6 became available (which while reliable was not up to the task of propelling such a heavy automobile) and the "V-8-6-4", a V8 engine based on the 6.0L V8. In theory the engine management computer would assess the loading on the drivetrain and deactivate cylinders that it deemed unnecessary to keep the car powered most efficiently. It was an idea quite ahead of its time, and somewhat ironically [[GM]] and [[Chrysler]] are now using a similar technology in their V8s today. Unfortunately the electronic technology available in 1981 just wasn't up to the task, and the V-8-6-4 engine was unceremoniously dumped after just one year. It was a troublesome engine management system, and it was generally disconnected by servicing dealers, making the engine run on all 8 cylinders at all times. A 3-speed automatic remained the sole transmission on the diesel, a 4-speed automatic was standard on the other engines.		In 1981 Sevilles had 2 new engines available. In addition to the 350 V8 diesel and the 6.0 V8, a 105 hp [[Buick]]-built 4.1L (252 cid) V6, based on the Buick 3.8 L V6 became available (which while reliable was not up to the task of propelling such a heavy automobile) and the "V-8-6-4", a V8 engine based on the 6.0L V8. In theory the engine management computer would assess the loading on the drivetrain and deactivate cylinders that it deemed unnecessary to keep the car powered most efficiently. It was an idea quite ahead of its time, and somewhat ironically [[GM]] and [[Chrysler]] are now using a similar technology in their V8s today. Unfortunately the electronic technology available in 1981 just wasn't up to the task, and the V-8-6-4 engine was unceremoniously dumped after just one year. It was a troublesome engine management system, and it was generally disconnected by servicing dealers, making the engine run on all 8 cylinders at all times. A 3-speed automatic remained the sole transmission on the diesel, a 4-speed automatic was standard on the other engines.

	An all-new standard engine was introduced for the Seville in 1982, the "HT-4100" (HT standing for "High Technology"). It was a 4.1L V8, designed for transverse, front wheel drive applications. It was originally slated for 1983 and a new line of downsized Cadillac sedans. Delays in the downsizing program postponed the introduction of those models until 1985, and as a result of the ~~failure~~ of the V-8-6-4 engine the new ~~4.1 litre V8~~ was rushed into production for the 1982 model year. For its time, the engine and its electronic control ~~module (ECM)~~ were quite sophisticated. ~~Despite having a throttle body injection system (as opposed to port fuel injection), the~~ HT4100 used an ECM that for the first time incorporated a detailed on-board computer~~. Every~~ parameter of engine performance ~~could be~~ displayed on the instrument panel's climate control display while the car was being driven. Unfortunately for Cadillac and their customers the HT4100 was prone to failure of the intake manifold gasket, and subsequent coolant infiltration of the engine oil. Any overheating episode inevitably reduced the aluminum HT4100 to an un-repairable lump. The HT4100 may not have been the most successful engine to sit under the hood of a Cadillac, but buyers were no more satisfied with the disastrous [[Oldsmobile]] 5.7 L Diesel or the overwhelmed [[Buick]] 4.1L V6.		An all-new standard engine was introduced for the Seville in 1982, the "HT-4100" (HT standing for "High Technology"). It was a 4.1L V8, designed for transverse, front wheel drive applications. It was originally slated for 1983 and a new line of downsized Cadillac sedans. Delays in the downsizing program postponed the introduction of those models until 1985, and as a result of the forced cancellation of the V-8-6-4 engine the new engine was rushed into production for the 1982 model year. For its time, the engine and its electronic control setup were quite sophisticated. The HT4100 used an ECM that for the first time incorporated a detailed on-board computer with every parameter of engine performance capable of being displayed on the instrument panel's climate control display while the car was being driven. Unfortunately for Cadillac and their customers the HT4100 was prone to failure of the intake manifold gasket, and subsequent coolant infiltration of the engine oil. Any overheating episode inevitably reduced the aluminum HT4100 to an un-repairable lump. The HT4100 may not have been the most successful engine to sit under the hood of a Cadillac, but buyers were no more satisfied with the disastrous [[Oldsmobile]] 5.7 L Diesel or the overwhelmed [[Buick]] 4.1L V6.

	To Cadillac's credit they extended drivetrain warranties and replaced a huge number of engines at their expense even on cars outside of the warranty period, but those continuing major drivetrain problems coupled with the then-lagging quality and reliability of all American automobiles caused nearly-irreparable damage to the [[Cadillac]] brand.		To Cadillac's credit they extended drivetrain warranties and replaced a huge number of engines at their expense even on cars outside of the warranty period, but those continuing major drivetrain problems coupled with the then-lagging quality and reliability of all American automobiles caused nearly-irreparable damage to the [[Cadillac]] brand.

Rawja: /* 2nd Generation (1980-85) */

2009-05-16T14:49:09Z

2nd Generation (1980-85)

← Older revision		Revision as of 14:49, 16 May 2009
Line 163:		Line 163:
	In 1981 Sevilles had 2 new engines available. In addition to the 350 V8 diesel and the 6.0 V8, a 105 hp [[Buick]]-built 4.1L (252 cid) V6, based on the Buick 3.8 L V6 became available (which while reliable was not up to the task of propelling such a heavy automobile) and the "V-8-6-4", a V8 engine based on the 6.0L V8. In theory the engine management computer would assess the loading on the drivetrain and deactivate cylinders that it deemed unnecessary to keep the car powered most efficiently. It was an idea quite ahead of its time, and somewhat ironically [[GM]] and [[Chrysler]] are now using a similar technology in their V8s today. Unfortunately the electronic technology available in 1981 just wasn't up to the task, and the V-8-6-4 engine was unceremoniously dumped after just one year. It was a troublesome engine management system, and it was generally disconnected by servicing dealers, making the engine run on all 8 cylinders at all times. A 3-speed automatic remained the sole transmission on the diesel, a 4-speed automatic was standard on the other engines.		In 1981 Sevilles had 2 new engines available. In addition to the 350 V8 diesel and the 6.0 V8, a 105 hp [[Buick]]-built 4.1L (252 cid) V6, based on the Buick 3.8 L V6 became available (which while reliable was not up to the task of propelling such a heavy automobile) and the "V-8-6-4", a V8 engine based on the 6.0L V8. In theory the engine management computer would assess the loading on the drivetrain and deactivate cylinders that it deemed unnecessary to keep the car powered most efficiently. It was an idea quite ahead of its time, and somewhat ironically [[GM]] and [[Chrysler]] are now using a similar technology in their V8s today. Unfortunately the electronic technology available in 1981 just wasn't up to the task, and the V-8-6-4 engine was unceremoniously dumped after just one year. It was a troublesome engine management system, and it was generally disconnected by servicing dealers, making the engine run on all 8 cylinders at all times. A 3-speed automatic remained the sole transmission on the diesel, a 4-speed automatic was standard on the other engines.

	An all-new standard engine was introduced for the Seville in 1982, the "HT-4100" (HT standing for "High Technology"). It was a 4.1L V8, designed for transverse, front wheel drive applications. It was originally slated for 1983 and a new line of downsized Cadillac sedans. Delays in the downsizing program postponed the introduction of those models until 1985, and the new V8 was rushed into production for the 1982 model year. For its time, the engine and its electronic control module (ECM) were quite sophisticated. Despite having a throttle body injection system (as opposed to port fuel injection), the HT4100 used an ECM that for the first time incorporated a detailed on-board computer. Every parameter of engine performance could be displayed on the ~~heater~~ control while the car was being driven. ~~The~~ HT4100 was prone to failure of the intake manifold gasket, and coolant infiltration of the engine oil. Any overheating episode inevitably reduced the aluminum HT4100 to an un-repairable lump. The HT4100 may not have been the most successful engine to sit under the hood of a Cadillac, but buyers were no more satisfied with the disastrous [[Oldsmobile]] 5.7 L Diesel or the overwhelmed [[Buick]] 4.1L V6.		An all-new standard engine was introduced for the Seville in 1982, the "HT-4100" (HT standing for "High Technology"). It was a 4.1L V8, designed for transverse, front wheel drive applications. It was originally slated for 1983 and a new line of downsized Cadillac sedans. Delays in the downsizing program postponed the introduction of those models until 1985, and as a result of the failure of the V-8-6-4 engine the new 4.1 litre V8 was rushed into production for the 1982 model year. For its time, the engine and its electronic control module (ECM) were quite sophisticated. Despite having a throttle body injection system (as opposed to port fuel injection), the HT4100 used an ECM that for the first time incorporated a detailed on-board computer. Every parameter of engine performance could be displayed on the instrument panel's climate control display while the car was being driven. Unfortunately for Cadillac and their customers the HT4100 was prone to failure of the intake manifold gasket, and subsequent coolant infiltration of the engine oil. Any overheating episode inevitably reduced the aluminum HT4100 to an un-repairable lump. The HT4100 may not have been the most successful engine to sit under the hood of a Cadillac, but buyers were no more satisfied with the disastrous [[Oldsmobile]] 5.7 L Diesel or the overwhelmed [[Buick]] 4.1L V6.

	To Cadillac's credit they extended drivetrain warranties and replaced a huge number of engines at their expense even on cars outside of the warranty period, but those continuing major drivetrain problems coupled with the then-lagging quality and reliability of all American automobiles caused nearly-irreparable damage to the [[Cadillac]] brand.		To Cadillac's credit they extended drivetrain warranties and replaced a huge number of engines at their expense even on cars outside of the warranty period, but those continuing major drivetrain problems coupled with the then-lagging quality and reliability of all American automobiles caused nearly-irreparable damage to the [[Cadillac]] brand.
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	{{-}}		{{-}}

	==3rd Generation (1986-1991)==		==3rd Generation (1986-1991)==
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