honestjerry
New Member
- Joined
- December 18, 2010
- Messages
- 8
- Reaction score
- 0
- Year, Model & Trim Level
- 1994 xlt
OK, here goes. 94 Explorer, 4.0 obviously, all stock. The IAC is getting erratic signals from the PCM causing sputtering high/ low idle or sometimes no action and a very low idle. Checked wiring, connectors, several IAC's, went as far as to run a new wire to the computer from the IAC, no luck. Thought the large connectors next to the alternator might be dirty, disconnected, cleaned, ran fine for four days, back to square one.
I have checked, changed and rechecked many things including the plugs mentioned above, now I can't get it to stop acting up at all which tells me I haven't found the problem and now it is probably worse.
Since the wires to the IAC seem to be ok, my next logical thought is, what tells the PCM to send a signal in the first place? Crank sensor? TPS? Combination of things?
This is my daughter's car and has been going on for 3 weeks now on and off. Kinda need some advice here.
Should also mention, no CEL, no codes.
Thanks!
Jerry
I have checked, changed and rechecked many things including the plugs mentioned above, now I can't get it to stop acting up at all which tells me I haven't found the problem and now it is probably worse.
Since the wires to the IAC seem to be ok, my next logical thought is, what tells the PCM to send a signal in the first place? Crank sensor? TPS? Combination of things?
This is my daughter's car and has been going on for 3 weeks now on and off. Kinda need some advice here.
Should also mention, no CEL, no codes.
Thanks!
Jerry
