Another Random Misfire
- Thread starter edthediscoman
- Start date
Your exhaust valves are probably sticking. I think we used to pull the heads off GEMS engines to clean up the guides and replace the exhaust valves more than for head gasket leaks.
Also have a spare set of heads, gaskets, new beautiful silver powder coated valve covers and intake manifold/throttle body and other goodies ready to go on - this might be that opportunity.
I just think it might be a little weird if ALL the valves stick at the same time and they stop sticking as soon as I restart (Now as I am rolling along). This problem is definitely related to the ECU is my thought.
I just think it might be a little weird if ALL the valves stick at the same time and they stop sticking as soon as I restart (Now as I am rolling along). This problem is definitely related to the ECU is my thought.
I replaced the VSS on Sunday. Also working on small exhaust leak near VSS,
Then a strange thing happened:
Truck at idle: When I slammed the drivers door it shut the engine off. Started car right away and then ran another 10 min, slammed the door again and it shut off again! After that I fiddled with the fuse box to see if anything was loose, tried to repeat and could not. I checked the inertia switch and it was fine.
Then a strange thing happened:
Truck at idle: When I slammed the drivers door it shut the engine off. Started car right away and then ran another 10 min, slammed the door again and it shut off again! After that I fiddled with the fuse box to see if anything was loose, tried to repeat and could not. I checked the inertia switch and it was fine.
I suppose I would start with grounds. Pulling on wire harnesses. Try to figure out what your loosing when it happens. My guess is it's not fuel because if you stopped the pump the engine would run a short time while the fuel rail still had a little psi.
Probably ignition coil related?
Probably ignition coil related?
As I was working on the exhaust at the time nothing was hot. I have cleaned and rebolted all grounds in the engine compartment, now time to dig under the dash.
Incidentally, a new VSS seems to have solved the stalling and misfire. None in two days, cross fingers. I think the ECU had to relearn and set the IAC valve.
Incidentally, a new VSS seems to have solved the stalling and misfire. None in two days, cross fingers. I think the ECU had to relearn and set the IAC valve.