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Problem Reported: Excessive Engine Oil Consumption
February 01, 2011, 03:38 PM

Vehicles equipped with the 4.6L engine may develop excessive oil consumption. Please be advised that under optimum driving conditions, using one quart of oil every 2000 miles is acceptable. This Cadillac standard applies to vehicles with less that 50,000 miles. Our technicians tell us that if you experience excessive oil consumption it may be caused by built up on the piston rings which restricts movement, preventing them from wiping all the oil from the cylinder walls. Oil left behind is then burned during the combustion process. There is a special ring cleaning procedure which can help this situation. The GM service bulletin number is #02-06-01-009C.

Problem Reported: All Wheel Drive Vehicles May Develop a Groaning Type Noise From the Steering Rack
December 20, 2010, 03:19 PM

All wheel drive vehicles may develop a groaning type noise from the steering rack when centering the steering wheel after turning right at slow speeds, most noticeable when driven from a cold start. Our technicians tell us a revised steering rack is available to correct this concern.

Problem Reported: Steering Wheel Position Sensor May Fail
September 15, 2010, 10:08 PM

The steering wheel position sensor may fail, resulting in the service stability message being displayed.

Problem Reported: Vacuum Leak From Intake Manifold
September 15, 2010, 10:08 PM

The Check Engine Light may illuminate due to an engine vacuum leak from the intake manifold area.

Problem Reported: Engine Performance Problems Due to Crankshaft Position Sensor Failure
September 15, 2010, 10:07 PM

The crankshaft position sensor may fail causing the engine to stall intermittently, the Check Engine Light may or may not illuminate.

Problem Reported: Oil Leaks From Lower Engine Area
September 15, 2010, 10:07 PM

The engine may develop oil leaks from the lower crankcase portion of the engine block. Our technicians tell us that the engine must be removed from the vehicle to properly repair this oil leak.

Problem Reported: Check Engine Light on Due to Faulty Catalytic Conveter
May 27, 2010, 11:08 AM

Failure of the catalytic converter can result in illumination of the Check Engine Light.

Problem Reported: Coolant Leaks From Water Pump and Radiator
May 27, 2010, 11:08 AM

The water pump and/or the plastic side tanks on the radiator may leak causing a loss of coolant. The engine may overheat due to coolant loss. Continued coolant loss after external leaks have been repaired could indicate a blown head gasket.

Car Review: 2002 Cadillac DeVille
March 25, 2013, 08:55 AM
It is unfortunate that this car which my wife loves is such an maintenance nite-mare! Purchased in 2005 with 28K miles, now 8 years later and 107k miles, I have spent $12,200 in repairs, maintenance and tires. Do not purchase a 2000 - 2006 Deville as they are all ranked below average in reliability by Consumer Reports. Without a doubt the worst car decision I have ever made. The upside with this car is the great highway comfort, roomy back seat and the huge trunk that will carry all your stuff to Fl every year.
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