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Author Topic:   check engine light
Esteemed Member

Posts: 15
From:Walnutport, PA USA
Registered: Jun 99

posted 09-30-2000 12:04 PM     Click Here to See the Profile for kkid24   Click Here to Email kkid24     Edit/Delete Message   Reply w/Quote
I have a 92 5.0. About a week ago I was driving it to school and I was in second gear I got the tach up to about 1500 and the check engine light went on. I kept accelerating and it went off and then on again at 1900. After I shifted into 3rd it did the same. That afternoon I watched the light and it never went on. But it has done the same thing every morning and afternoon. There are no strange noises and everything looks good under the hood. It still runs great. What I'm wondering is what could be some possibilities of what is wrong? Am I not letting the car warmup enough? I'd like to hear any ideas you have. Thanks.


Esteemed Member

Posts: 177
From:Lusby, MD, USA
Registered: Jun 99

posted 10-02-2000 11:17 AM     Click Here to See the Profile for GTRocks   Click Here to Email GTRocks     Edit/Delete Message   Reply w/Quote
This could be a lot of things. That check engine light is telling you that the computer has picked up something that is wrong. The computer stores the code in a EEPROM on the computer. Unfortunately, you have to have a code reader to know what code it has stored. You can get the readers at most any auto parts store for about $30 (make sure you get the FORD code reader). They come with a book that tells you how to extract the code. Then you look the code up in the book, and it will tell you what the computer thinks the problem is. It could be almost anything, but typically it will be a bad sensor (O2, EGR, etc.).

I had a very similar thing happen to me in my old Explorer. It turned out that it was a hole in the air intake hose that was causing the computer to think that the EGR valve was bad. Thus, you might want to check your hoses for vacuum leaks before you spend the $30.

Good Luck!!


Forum Kahuna

Posts: 688
From:Lyons, ILL, USA
Registered: May 99

posted 10-08-2000 08:59 PM     Click Here to See the Profile for Capri   Click Here to Email Capri     Edit/Delete Message   Reply w/Quote
If the C/E light just comes, then goes off in split seconds, Most likely, it is O2 related. Its not something that will kill power, or anything. If you get the chance to scan the computer, it wont hurt. But, check your air intake hose. If it is a tad loose, it might flash the light at you.



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