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

Improper HVAC Temperature and/or Air Delivery Due to Failed Mode Door Actuator

One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored in the HVAC control module which should assist in diagnoses.

Oil Leak From Lower Engine Area

The engine may develop an oil leak from the lower crankcase portion of the engine block. Our technicians tell us that the engine must be removed from the vehicle to properly repair this oil leak.

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

Rated
based on 3 customer 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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