Weird engine trouble with my Chevy van - PeachParts Mercedes-Benz Forum

cmac2012 · #1 08-03-2022, 12:13 PM

Quote:

Originally Posted by Sugar Bear

If the distributor has a vacuum advance unplug the vacuum hose and see if the lurching goes away. If yes it's degraded wires on the distributor pole piece.

Good luck!!!

Thanks! I like this whole truck, a new engine might be called for one day, but I would prefer to put that off for a while.

A few years ago I had a horrible stalling problem. I had to put it in neutral and rev the engine somewhat at stop lights and stop signs or it would die. Trying to reverse to get into a better parking situation was an ordeal. One foot on the gas and one on the brake. I did everything I could think of, I finally took it to my mechanic buddy who is pretty sharp, he found that the distributor itself was bad. I had already put on new cap and rotor, but the thing had incredible internal friction.

INSIDIOUS · #2 08-03-2022, 01:15 PM

Quote:

Originally Posted by cmac2012

Thanks! I like this whole truck, a new engine might be called for one day, but I would prefer to put that off for a while.

A few years ago I had a horrible stalling problem. I had to put it in neutral and rev the engine somewhat at stop lights and stop signs or it would die. Trying to reverse to get into a better parking situation was an ordeal. One foot on the gas and one on the brake. I did everything I could think of, I finally took it to my mechanic buddy who is pretty sharp, he found that the distributor itself was bad. I had already put on new cap and rotor, but the thing had incredible internal friction.

That sounds like the idle air control valve. Those get gunked.

Sugar Bear · #3 08-03-2022, 05:28 PM

The stalling could be an EGR valve sticking partially open creating a vacuum leak.