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Engine Oil Leaking Problems of Cadillac Deville

Cadillac Deville owners have reported 25 problems related to engine oil leaking (under the engine and engine cooling category).

car image   Engine Oil Leaking problem of the 2004 Cadillac Deville 1
Failure Date: 03/01/2016

Letter from senator nelson re constituent re 2004 Cadillac Deville issues. The consumer stated oil has been leaking from the main oil seal for the past four years.

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car image   Engine Oil Leaking problem of the 2004 Cadillac Deville 2
Failure Date: 04/21/2014

My last oil change, I was told that I had a leak in the block and that only the dealership could fix. I was also told to be ware that the cost would be very expensive.

car image   Engine Oil Leaking problem of the 2004 Cadillac Deville 3
Failure Date: 01/01/2014

The contact owns a 2004 Cadillac Deville. The contact stated that the engine oil leaked onto the exhaust system and caused the engine to smoke. The dealer stated that the engine valve cover seal and gasket needed to be replaced; however, the manufacturer denied assistance with the repair. The vehicle was not repaired. The failure mileage was 49,046. The current mileage was 101,700.

car image   Engine Oil Leaking problem of the 2002 Cadillac Deville 4
Failure Date: 12/03/2013

Engine leaks oil profusely from all over (especially oil pan gasket) and the oil falls onto the exhaust system and causes fire hazard and smoke and therefore polluting the environment.

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car image   Engine Oil Leaking problem of the 2001 Cadillac Deville 5
Failure Date: 10/07/2013

Tl-the contact owns a 2001 Cadillac Deville. The contact stated oil was leaking from the engine. The vehicle was taken to the dealer where it was diagnosed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 80,000. Tw.

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car image   Engine Oil Leaking problem of the 2003 Cadillac Deville 6
Failure Date: 10/27/2012

My engine leaks oil from the seals. It was always dealer maintained for regular maintenance with low mileage. It started 3 years ago. I noticed you recalled other vehicles for this problem. My engine is a v8. Regular oil changes etc. It continues to leak. Dealer wants $2,500 to fix seals. The way I drive it with low millage of 60,000 miles it should not have leaked. Just read about recall of other gm cars on 27 oct. 2015.

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car image   Engine Oil Leaking problem of the 2005 Cadillac Deville 7
Failure Date: 07/03/2012

Engine began to leak oil after 40000 miles. The company and dealership assured me this was normal. Longer I operated this car, more it began to leak. At first few drops, then later, 1-2 qts between oil changes. Today, it is worst. I have spent several thousand dollars related to this engine. The leaks continue to this date. Engine stopped once on me, shut off, nothing worked. No airbag, any electrical service. Hit hole in road and everything shut off. Called company many times, wrote to president, other executives all to no avail. There are many Cadillac Devilles with same leaking problem, the northstar engine has this problem since 1998, on all their models. It is like the key, they will do nothing until made to correct it. I hope you follow through, this is not right and cause many problems with deep expenses for owners.

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car image   Engine Oil Leaking problem of the 2003 Cadillac Deville 8
Failure Date: 02/28/2010

2003 Cadillac Deville dhs the front brake pads, rotors and left front caliper had to be replace. The consumer stated the left front caliper would stick and it didn't release properly which caused the left front brake and rotor to wear. After the consumer picked the vehicle up and started driving, she heard the new brakes grinding. The consumer contacted the dealer again and was told after market parts had been installed on her vehicle. Consumer stated she specifically requested original gm parts be put on the vehicle. The dealer also informed the consumer the engine block halves and rear shocks were leaking oil.

car image   Engine Oil Leaking problem of the 2005 Cadillac Deville 9
Failure Date: 01/15/2010

Oil leak underneath engine has progressively gotten worse. Mechanic says it will cost $2,000. To fix. Two sections do not fit properly, so this model will leak oil.

car image   Engine Oil Leaking problem of the 2002 Cadillac Deville 10
Failure Date: 09/07/2009

The contact owns a 2002 Cadillac Deville. The contact stated there was an oil leak from the oil pan. The vehicle was taken to an independent mechanic for diagnostic testing, but was not repaired. The manufacturer was not notified. The failure mileage was 120,000.


 
car image   Engine Oil Leaking problem of the 2005 Cadillac Deville 11
Failure Date: 07/10/2007

This northstar engine has leaked oil,(not burning it) since 40,000 miles. I use 2 or more quarts of oil between oil changes. It leaks whenever it is parked. I have spent monies on this, but it appears a major engine repair is needed. Some say, the bolts were too short, and others say, this defect continued until the 2006 year.

car image   Engine Oil Leaking problem of the 1998 Cadillac Deville 12
Failure Date: 10/31/2006

: the contact stated the vehicle's oil and antifreeze leaked causing the intake and outtake of the engine to rust, in turn causing the pipe to bust and the vehicle to overheat. The vehicle needed a new engine to fix this issue. Updated 12. 8/2006 - 4. 6 liter northstar engine. The l/f window was inoperative. The brakes pulsated. The ses light illuminated. The headlight was inoperative. The automatic transmission failed.

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car image   Engine Oil Leaking problem of the 2002 Cadillac Deville 13
Failure Date: 07/09/2005

The contact owns a 2002 Cadillac Deville. The contact stated that there was a constant leak from the vehicle. The vehicle was taken to an authorized dealer, who diagnosed that an oil change was needed. The oil was changed several times but the failure recurred. The vehicle was taken back to the dealer, who then diagnosed that there was a secondary air injection reaction and further diagnosis would have been required. The manufacturer was notified of the failure. The vehicle was not repaired. The approximate failure mileage was unknown.

car image   Engine Oil Leaking problem of the 1997 Cadillac Deville 14
Failure Date: 04/10/2005

My 1997 Deville has an oil leak due to poor engineering and results in the car dying out at any time. This has resulted in loss of power steering and brakes. I have had the car serviced but the problem quickly reoccured.

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car image   Engine Oil Leaking problem of the 2000 Cadillac Deville 15
Failure Date: 10/17/2004

Consumer noticed oil on parking garage floor. Took vehicle to dealership for inspection. Dealership indicated oil was leaking from the oil pan gasket rear seal, upper crank case valve cover, and rear seal due to a flaw in the north star engine. Oil pan casket had been replaced, and upper crank case will be replaced. This was a common failure with these engines.

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car image   Engine Oil Leaking problem of the 2005 Cadillac Deville 16
Failure Date: 04/09/2004

Airbags failed to open after engine died. Car went dead and steering brakes failed to operate properly. Seat became unlocked. I was jammed under steering wheel. Engine and car dead. Front end and rear end total, never received replacement. Insurer was geico, repaired at their recommended facility. Engine began to leak oil after 20000 miles car never operated correctly afterwards, traded it in after 6 months, for 2005 new cts. Same thing happened, engine shut off,. I traded for 2005 Cadillac Deville, in 2005.

car image   Engine Oil Leaking problem of the 1996 Cadillac Deville 17
Failure Date: 07/02/2003

Consumer stated that while driving and without warning oil started to leak from the engine. Dealer notified.

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car image   Engine Oil Leaking problem of the 1996 Cadillac Deville 18
Failure Date: 01/30/2003

The gasket for the oil pan had leaked, and caused the service light to remain on. The dealer was notified. Ph scc.

car image   Engine Oil Leaking problem of the 1997 Cadillac Deville 19
Failure Date: 01/10/2003

Consumer stated that while driving and without warning oil is leaking from the vehicle and causing the consumer to refill more then often. Cause is unknown. Dealer notified. Ts.

car image   Engine Oil Leaking problem of the 1997 Cadillac Deville 20
Failure Date: 05/01/2002

Oil is leaking from underneath of engine. Vehicle is under 50,000 mile/4 year warranty, however, dealership covered 60 percent of repairs.

car image   Engine Oil Leaking problem of the 1996 Cadillac Deville 21
Failure Date: 11/13/2000

I have a 1996 Cadillac Deville that I purchased new. At about 83k miles, I noticed that an oil leak had started from under the engine. I took it in to the dealer near where I live now (moritz Cadillac in arlington, TX), and was told that the cause of the oil leak was the wearing out of the engine seals at the bottom of the engine. I was then told it would cost $1,800 to repair as it would require the complete removal of the engine from the car to repair (about 18 hours of labor). After some research on the web I found that this is apparently a fairly common problem with Cadillac's with the northstar engine. I believe this to be a design flaw in the engine, and because the cost is so high, makes it very difficult for owners to have the repairs done, and hence are driving cars that are both environmentally unsound and potentially unsafe due to the leaking oil.

car image   Engine Oil Leaking problem of the 1996 Cadillac Deville 22
Failure Date: 08/03/2000

Vehicle was leaking oil from several places. Took to dealer, and they put in gaskets, but it's still leaking oil.

car image   Engine Oil Leaking problem of the 1997 Cadillac Deville 23
Failure Date: 04/05/1999

Loose oil filter causing leakage. Mjs.

car image   Engine Oil Leaking problem of the 1998 Cadillac Deville 24

Not a safety defect but this car is leaking oil around the oil pan and from what I understand from the dealer that they have redesigned the rubber gasket to withstand hotter tempatures and I feel that this should be some kind of recall on this. The dealer is wanting $1800. 00 to repair this and my car has only 58,000 miles on it.

car image   Engine Oil Leaking problem of the 1998 Cadillac Deville 25

Leak oil after serviced twice.


Other Common Engine And Engine Cooling related problems of Cadillac Deville