1996 Chevy Cavalier check engine light

Well, according to our forum, it can be a blown fuse.
https://www.2carpros.com/first_things/check_engine_light.htm

My experience says that is very abnormal as the cause. The time time is off that much there are misfires likely present send unburned fuel and a very rich condition that is causing damage to the cat converter which will create more problems and expenses.

HEad gasket sealer was a mistake. That will crate more problems than solving. that stuff will reamin in the system until oxygen hits it and will then start to clog wherever it is traveling.

Would be curious to know the codes. Seems like some guessing is going on in the diagnosis.

[quote:9dec57f7af="1Ronnie"]Electrical problem
1996 Chevy Cavalier 4 cyl Front Wheel Drive Automatic 145000 miles
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Just purchased this car from friend. Running fine until antifreeze level adjusted by mechanic then temp gauge would spike and then go to cold tho sometimes would stop in middle momentarily. Check engine light came on when gauge spiked then go out when cold.
Problem now: check engine stays on but flashes periodicallly. (had fuel pump, temp sensor, and knock sensor replaced along with head gasket sealer
put in). Mechanic says timing off 13 degrees and needs new timing chain (by alpha code reader). Could Engine light possibly be bad or a bad fuse?[/quote:9dec57f7af]




It will help a lot if you can get the code and posted here

Did they check the head when gasket was done

Without the code I would say check for a head gasket failure

Check engine flashing not a good sign
Misfire / head gasket