My 1993 Ford Explorer is idling high

Asked by susie Aug 02, 2024 at 06:38 AM about the 1993 Ford Explorer 4 Dr Limited 4WD SUV

Question type: Maintenance & Repair

Idling high, I check for leaks and change air filter and spark
plugs but it still the same..I need help

2 Answers
310,545

Gene answered 4 months ago

Stuck throttle plate, inoperative ISC, internal vacuum leak, any codes?

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157,825

James answered 4 months ago

Vacuum leak and or IAC (Idle Air Control) valve not working properly are the two main causes. In that order. Unplug the IAC and start the engine. Tap on the IAC with the handle end of a screwdriver. If the idle comes way down, you've found the problem. Jim

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