truck idles ok cold, runs rough after warm-up
This is a re-post that I am making to summarize new info and get new input.
I changed the engine in my 94 4x4 22RE after I skipped the timing chain. The 'new' engine has 115k and an unknown history. The engine replacement went fine until I set the timing. I can get it to run perfectly when cold, but after it warms up, it runs really rough and almost stalls. I get no CEL or codes. Things tried so far: remove O2 sensor (set code, then re-installed and cleared code) swap in original coolant sensors (2 pcs) swap in original distributor swap in original throttle body (with TPS) I have not yet swapped in the original EGR valve. Any other ideas would be appreciated. |
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