1998 Cadillac Seville STS Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1998 Cadillac Seville STS

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1998 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.

Engine Overheating Due to Leaking Headgasket

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.

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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1998 Cadillac Seville STS Reviews

Beautiful to behold. Always silky smooth to drive. Fifth generation Seville touts a K style Oldsmobile Aurora body, the structure much stiffer with front-drive drivetrain featuring the muscle Northstar V8 and 4T80-E four-speed automatic (which is probably its worst component) I miss the wreath crest, but otherwise, the lines are striking and the crimson red exterior and cream leather interio...
dude this car is forever is the best!!!
lol ya mine 98 is on its way got to replace whole front suspension cuz 20in rims and hittin them bums to hard

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