2000 Cadillac Seville STS Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2000 Cadillac Seville STS

2000 Cadillac Seville STS Problems

Car 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.

Excessive 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.

Coolant Leaks From Water Pump and Radiator

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.

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2000 Cadillac Seville STS Questions

Why 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 stopped working (1 answer)

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

What is draining my battery? (2 answers)

When I park my truck at night battery will not have enough juice to start in the morning

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2000 Cadillac Seville STS Reviews

Car runs even better than the day that I purchased it. Purchased at 82K miles needed new brakes, tires, and crankshaft sensors but runs like new now. The handling is great for a car as big as it is and it rides smooth although the brakes you have to stomp on to get the car to stop(maybe bigger breaks on a 4000 pound car next time GM) But the engine and the exhaust systems run amazingly no issu...
horrible automobile
Very comfortable to drive, good appearance, I don't want to trade it in for a newer model.

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