Yj motor problems - Jeep Wrangler Forum

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Old 09-26-2010, 02:55 PM
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Leonard Leach is on a distinguished road
Yj motor problems

Ok we replaced th head due to overheating. in the process we cut the wire to the crank sensor so we replaced it, when we started it up the motor now runs wide open, We have checked everything we can think of,looking for new ideas!!!
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Old 09-26-2010, 03:19 PM   #2

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Idle problems are normally caused by either vacuum leaks, the IAC (Idle Air Controller), or the TPS (throttle position sensor).

Nothing is foolproof to a sufficiently talented fool.
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Old 09-28-2010, 08:23 AM   #3
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Mine was caused by the carb, vacuum lines and stupid as it seems the spark plug wires got crossed by accident.
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