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.
Problems for specific Cadillac Eldorado years:
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Newest reported 1998 Cadillac Eldorado problems
Power seat motors and seat position sensors may fail causing the power seats to act erratically.
A worn bushing in the transmission could cause a transmission fluid leak from the axle seals. The transmission must be disassembled and the bushing replaced to properly correct this leak.