Hi new to this group, i have a 93 Chevy k2500 5 speed 350. Not getting spark or fuel. There’s a lot of people that I’m sure will give there input on what they think it is but before you say anything i want to say i have replaced literally everything. Ecm (3 times), the chip that goes in the ecm also (twice), complete distributor (twice) new Throttlebody, plugs and wires, knock sensor, icm, ignition switch, starter, alternator, fuel pump, fuel pump relay, fuel pump ground wire, and i can keep going and I’m still having the same issue-no spark no fuel. Is there a something I’ve missed on these. There isn’t much to these trucks and I’ve already thrown 2k into chasing this problem. Let me know thanks

 

Welcome Kevin! How about a little more history. Was this a sudden no start problem or more intermittent? Did anything you changed make any difference? How many miles? When you turn on the key do you hear the fuel pump prime? Any check engine light or codes?
IMO this will prove to be an interesting thread to read once completed since you have already done so many things w/o success. The more detailed you are on history of the problem and order of what you have tried, the more likely the smarter guys & gals here (not me) will give you the fix!

 

It Was intermittent. It wouldn’t start after I’ve had it running for about a good four hours and then I could get it started. Then some days it wouldn’t have any issues at all and then all the sudden it was completely done and would not start took it to a mechanic shop they couldn’t figure it out still charged me an arm and a leg and still didn’t do anything to it other than look it over.

 

also no check engine light or anything. Everything appeared as it should. My second ecm the check engine light came on but when i put the 3rd it it was fine very strange. I’ve read lots of posts and seen what people have fixed and cured the problem but I’ve done everything and then some and still nothing. I’m going to check every wire harness every ground and every fussable link and see if i can find an issue there. If not I’m completely lost and just going to cummins swap it haha

 

Going through all the ground wire locations was going to be my advice. They have caused alot of issues with the gmt400 diesels I've owned. The ground wires for the fuel pump and ecm has caused problems with my 88 gasser.

 

That’s what i was thinking as well, once i figure it out i will post it on here that way if anyone else is having the same issue it will be helpful. Thanks again