engine stalls no wait to start light
1997 Burb 2500 stalls about ten minutes after startup or won't start at all. No wait to start light some times you can hear relays chattering ( the ac clutch will chatter if the defrost is on) then for no reason it will start working after you cycle the key. If you try to start with out the wait to start even when its warm it still won't start. Had a local diesel shop look at it and when it failed mechanic couldn't get scanner to talk to PCM but it did have power going to it. Replaced ignition switch year and a half ago, FSD and cooler year and a half ago also lift pump about the same time.(less than 15,000 miles ago). It seems to happen on colder mornings especially with a large temperature swing.(40*F). Cleaned and added new grounds also did the battery terminal updated. Did a wiggle test on harness and on pcm. Can't seem to find anything I'm about to throw a PCM at it but hate to spend money and have same problem. HELP!!! (also not giving any codes when this happens)
same problem with my 3500 sierra
I am having the exact same problem with my 3500 sierra - exact problem. It has been in the shop twice for this, and I have spent around 1300 dollars on it. It will run fine for a couple of days, and then just quit and won't restart. After sitting around for a couple of days, it finally restarts, and runs fine for another hundred miles or so, and then the same thing.
I too appreciate all the responses to this question.