95 Suburban K1500 dies & won't start - ChevyTech

[Dapapadon]

Thanks for the fast replies! I'm an old school carb guy I guess. I usually take this new stuff to a shop but that didn't work on this interm. problem.

I'm by myself when the problem occurs. And wasn't really sure what to check. I think I can get someone to crank it for me next time so I can do some checks.

I didn't replace the ICM, a local shop did. So I'm not sure if they used heat sink compound or not. When i had the disrtib. cap off to check the pickup coil there does appear to be white grease squeezed out from under it. It is a Delphi unit.

The distributor shaft doesn't seem to have excessive side play. Maybe 0.002" at most. I can't tell about the pickup coil. I used a flashlight but can't get a good look at it. There is like a round brown coil over the trigger on the disrtib. shaft. I couldn't see any damage or rub marks.

I wiggled the wiring around the TB and it stayed running no problems there. I had to look up where the computer is but didn't get it to die while wiggling the wires there or tapping on the computer.

It did die a few seconds after I removed the fuel pump relay. I verified this 3 times and each time it died in a few seconds. Where is the best place to get the oil pressure sensor? Looks hard to get to with the distributor in the way.

I have a meter I can keep in the truck to check the red & white wires on the TB next time it will not start.

The truck runs fine (when it runs). I want to say I had the local mechanic shop do a tuneup last time I had problems but that was almost a year ago. I do see some corrosion on the cap & rotor and think I will replace those. May do plugs as well.

Again thanks for the quick replies.

Now it's off to work I go.

Don