troubleshooting high idle/1994 ford ranger 2/3L

Asked by ron2112couch Feb 07, 2014 at 05:35 AM about the 1994 Ford Ranger XLT Standard Cab LB

Question type: Maintenance & Repair

started after sub zero temps an immediately had extreme high idle that makes truck do
38mph without touching pedal. have cleaned iavc and maf sensor

1 Answer
200,965

dandyoun answered 10 years ago

I would also check for vacuum leaks. Specially the pcv tubing. Some ford models have hard plastic tubing going to the pcv valve. This tubing tends to become brittle and break.

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