1998 Cadillac Seville STS Repair and Maintenance

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

1998 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.

High Pressure Power Steering Hose Can Leak Fluid

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

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.

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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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