repairs not working correctly

Asked by johnny1978 Jan 08, 2016 at 09:00 PM about the 1994 Chevrolet C/K 1500 WT LB 4WD

Question type: Maintenance & Repair

I was doing some maintenance  to my 1994 chevy cheyenne c
1500 truck and was cleaning the harness plug on IAC valve and
it fell apart. I bought a replacement, installed it and the motor is
idling high. I replaced the IAC valve and PCV valve and it
continues to idle really high and fast. Cannot figure out the
problem. Is it a vacuum line I'm missing or is the computer brain
not sending the right command?

1 Answer
61,205

Andrew answered 8 years ago

Do not mess with the iac, you cannot set anything on it prior to installation. I agree, sounds like the wires went spliced together right

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