2001 Cadillac Seville STS Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2001 Cadillac Seville STS
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2001 Cadillac Seville STS ProblemsExcessive Engine Oil Consumption
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.
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.
Overheating of the engine may cause the cylinder head to expand, severely straining the head bolts and damaging the threads in the engine block. This commonly results in a blown head gasket. Our technicians tell us the engine block threads must be repaired before the cylinder head is reinstalled.
2001 Cadillac Seville STS Questionswhere is the map sensor located (1 answer)
CAME HOME FROM WORK, WAS BACKING INTO MY DRIVEWAY AND ENGINE REVED UP TO 4000 RPM. WHEN I PUNCHED THE PEDEL, IT WENT HIGHER AND WOULDN'T DROP.