Cadillac Seville STS Repair and Maintenance

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

Cadillac Seville STS Problems

Engine Overheating May Cause Cylinder Head to Expand

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.

Powertrain Control Module may Develop Fault

This powertrain control module (PCM) may develop a fault with its electrical ground location at the front of the engine block near the starter motor.

High Pressure Power Steering Hose Can Leak Fluid

The high-pressure power steering lines are known to leak.

See More Problems (37)

Cadillac Seville STS Reviews

I am an 18 year old kid and bought this as my first car. That being said, I don't expect it to last me that long cause when something goes wrong it is very expensive to fix it.when that day comes I'll have to part it out:(
Purchased in 1999, original owner, I only drive it occasionally and have around 71k miles on it now. Only 1 major issue with the vehicle - a nagging vibration at 65mph caused by either axle or something in the suspension up front. Original tires, and replacement tires as well as rims have been high speed road force balanced twice but vibration continues. Replacing the axle will be next, somet...
Love the smooth engine and the thrill of power, drives great. 142000 miles I do have an oil leak and 3rd light is half out tail lights get condensation in them. Center console cup holder is broken will not stay stored. Car still looks great and still has a great shine.

See More Reviews (37)