Dang Engine Light, Any Ideas?

[BPK]

92 K1500 WT 4.3. After 10 to 15 minutes of driving, as the temp is rising, before up to full temp, the engine light comes on and stays on. When the truck is cold again light is off and no codes. I have to think this has something to do with some sensor that is not responding as the engine comes up to temp but where do I start? Looking for any ideas. Truck runs fine.

[Mike G]

That is odd... I would start with engine temp sensor, that's pretty easy. I do not know for sure, but is there a coolant level sensor in there someplace? I do not have any shop manuals, stop by your local parts store and grab one off the shelf for reference.

 

Just a few $.01's --Mike

[citydriver]

Find out what the trouble code is that set the Check Engine light first, then you will have a starting point to help diagnose the problem.

[Nytemare]

could be your EGR.

 

 

 

If all else fails...nothing gets rid of a CEL like electrical tape....

[mcreyaufmiller]

Have the codes checked. Even if the lifht has gone out, they will still be stored in the computer.