Hey guys, new to the forum and new to the gmt400 crowd so I don't have a lot of knowledge on fixing these trucks and looking for help. I have a 92 K2500 5.7 with a new crate motor with about 40K on it and it died on me one morning warming it up and about a day later the check engine light came on and it started to idle rough and sounds like its misfiring. I replaced plugs, wires, o2, cap, rotor, and coil and its still has a rough idle. I tried to jump the obd1 but it just turns off the CEL and doesn't save the codes on the dash. Any advice helps, thanks.
New member with idle problems
- Thread starter JustinJ90
- Start date
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