1999 Cadillac Seville STS Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1999 Cadillac Seville STS

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1999 Cadillac Seville STS Problems

Check Engine Light Due to Gas Cap Issue

A Loose or worn gas cap may cause Check Engine Light to illuminate.

Stalling Due to Failed Crankshaft Position Sensor

The crankshaft position sensor may fail causing the engine to stall intermittently, the Check Engine Light may or may not illuminate.

Replace spark plugs every 100,000 miles

The spark plugs should be replaced every 100,000 miles. Our technicians recommend replacing the spark plug wires also at this time.

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1999 Cadillac Seville STS Reviews

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...
my car has 251,000 miles and is still going strong--put used struts & windshield in it in the last 3 years--5000 rpm at least once a week for a couple minutes to keep that northstar from useing oil works--use a quart every 3k---don't drive a northstar like a grandma and it will treat you right!---love this car---
I own a 1999 Seville STS with 193k miles. The only issues on the interior are: Front passenger door lock switch will only un-lock, not lock. Front passenger window regulator failed, needs replaced. Brake light circuit open, switch needs alignment. Only mechanical problems are: Right rear air ride strut has air leak, causes compressor to run often. Does not affect driving performance...

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