1994 Oldsmobile Silhouette Q&A
1994 Oldsmobile Silhouette Question: Check engine light
My check engine light comes on/off. The vehicle is at 150XXX miles but the engine is not (new engine). Vehicle is slugish at times and needs a tune up but this would not call for the engine light coming on. Is this a preset command in the computer? How is this reset. - JenB
Sounds like a failing oxygen sensor, sometimes weak oxygen sensors will make the check engine light go on and off. - hemicuda
Illumination of the Check Engine Light may be the result of a loose or worn gas cap.
...interrupter (magnet) may become demagnetized and/or fall off of the camshaft gear causing the Check Engine Light (Service Engine Soon) light to illuminate. On higher mileage vehicles it would be advisable t...
i have a check engine light on a 2001 oldsmobile silhouette..what could be the problem..
Check engine light remains on no problem with starting or driving.
my service engine light stays on. I have tightened by gas cap (maybe I need a new cap?). Could an additive to my gas make a difference. thanks