1994 Cadillac Seville SLS Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1994 Cadillac Seville SLS

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1994 Cadillac Seville SLS Problems

The Fuel Pump May Fail Causing the Engine to Stall or Crank Over But Not Start

The fuel pump may fail causing the engine to stall and not restart. Our technicians recommend replacing the fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.

Car Won't Start and Security Light is On

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.

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.

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1994 Cadillac Seville SLS Reviews

Among the several electrical problems I have with this car (doors locking and not unlocking, the trunk popping up randomly) I have a new problem with the alarm. My car alarm will go off randomly, if I lock it and try to unlock it, it will not unlock, and when I use the actual door key the alarm goes off. Even when I do not lock the car, I will get out and shut the door, setting the alarm off, w...
The '94 version of transverse NorthStar is an absolute racehorse. It is a thoroughbred. It will flat crawl up and get naked with you! I mean it is STOUT! I'm the original owner of my Seville SLS. 147,000 miles! Only 3 tuneups. I broke the engine mounts twice (I think from hard accelerating) . I think this is a very weak component in the engine compartment. Oil & filter every 3,000 miles The br...
The race-bred Northstar engine is awesome. It will spank a 5.0 Mustang and yet still gets 25 mpg hwy. Comfortable interior and ergonomic controls. The PCM wiring cracks easy and develops shorts/ground problems. Suspension is great...when it works properly. I recommend switching to the passive suspension components. Overall a very good car.

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