GM Repair Problems? Ask GM Repair Expert Now.
Hi, I’m Ron and I’ll be helping you today.Before we get started though, Please understand that I don't knowyour skill level or tools you have to assist us. Also understand thatI can't see, smell, hear, or touch the vehicle either, so patience isappreciated. JA is a great Q/A site, but it does NOT replace arepair shop.My goal is to make you happy and get a great rating in return formy time. Sometimes I have to give you bad news that I know youdidn’t want to hear, so please don’t shoot the messenger.
Replace the distributor and you will cover all the bases for vacuum and mechanical advance. Make sure you have manifold vacuum going to the vacuum advance too.
Ok, so it's the ESC distributor. Check your KNOCK sensor, the one I had was defective and the timing would never advance. I also had one with the wrong module causing the same thing.
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