2000 Cadillac Seville STS Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2000 Cadillac Seville STS
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2000 Cadillac Seville STS ProblemsCar Won't Start Because of Anti-Theft System That Uses Raised-Chip Key
Problems with anti-theft systems using the raised-chip key can prevent the car from starting. The wires in the steering column to the ignition lock cylinder tend to break. The key and ignition lock cylinder should be replaced to correct this condition.
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.
2000 Cadillac Seville STS QuestionsWhy won't the battery stay charged after traveling over 30 miles (1 answer)
This started after the rear window was broken and replaced
power door locks stop working and interior lights were is the relay and fuses is the rear fuse box and front box the only ones
When I park my truck at night battery will not have enough juice to start in the morning