1999 Chevrolet Truck Repair Question
1999 chevy suburban
Hummm I have seen this problem a lot of times. Check you grounds from the battery to the frame, from the battery to the engine and from the engine to the fire wall. Remove and clean them until both surfaces are shiny.
In all cases go back to basics with voltage and grounds being the most important. there is also a slug of wires on the engine block. they feed the computer and dash. Clean them also.
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Check your crankshaft positioning sensor. They are known to be bad, at least in the Tahoes of the same year. I had similar problems, changed everything you did, and it came down to an $80 part.
Mine threw the code once, but a mechanic said that wouldn't cause the stalling. Needless to say, I'll never go back to him. Funny thing is that the code didn't come back up. I'd reset every 2-3 months because I was getting some catalytic conv. code. This went on for like a year and I continued to have the stalling problems until it came back up and then changed the part.
Hope this helps.
2 questions asked