I have a 1992 C1500 with a TBI 5.7 and today it just died on me while driving. It didnt sputter or anything like it was running out of fuel, it just stopped . I checked to see if the fuel pump was working and I can hear it coming on and priming like it should. I also checked to see if the injectors were spitting fuel while trying to start and it wasnt.

I then checked to see if I was getting spark which I wasnt, even directly from the coil. I had a spare ignition coil already so I plugged it in and nothing. My thought then was the ignition control module so I pulled it out and took it up to my local parts store and they tested it, checked good..... I am stumped!

Does anyone have anything else that I can try?

 

Anyone?

 

IGN fuse? never hurts to check.

 

Oh I forgot to mention that, I checked all of the fuses visually and with a meter.... I am seriously stumped and pissed and cold...

 

Had to tow a guy once. the wire from the distributer to the coil was f'ed up. Burned in half inside the boot.

 

Thanks dmelvin, while the wires are fairly new Taylor wires I am going to check that first thing tomorrow. I wish I had my old set I took off lying around still, dammit why cant I be more of a packrat!

 

I'm saying its the ignition module even though it "tested" good. Its a very common failure on the small cap HEI's as the module just bakes to death under the cap. The other thing besides the coil wire being fried is the little two wire harness between the coil and the ignition module. It just provides power and ground to the module but its been known to raise hell. If you get a new ignition module get a good one, preferably AC Delco and if you must got aftermarket no less then a Borg Warner. If it comes down to a dead ignition module or a Wells unit from Auto Zone stick with the dead one, at least it will be reliably dead. Make sure to put plenty of grease on the bottom side of the module before you install it. Its a white looking stuff called heat sink grease and its hard to find but Radio Shack has it for computer processor heat sinks. Sometimes it comes with the replacement ignition module but sometimes it doesn't and dielectric grease is not the same thing. Its silicone based and doesn't transfer heat worth a damn. Other then that, maybe a bad ignition switch. My 95 cough a few times and died just as I rolled into Kiowa one time. Restarted and died and that was all she wrote. Finally got to checking deeper then the usual suspects and found I was only getting 1 volt key on to the PCM. Took a new ignition switch to get it back on the road. Not cheap on a 95, about 15 bucks on a 92 and a lot easier to change.