2003 Explorer 4.6 V8 idle problems - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
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post #1 of 2 (permalink) Old 03-24-14, 12:35 PM Thread Starter
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mad 2003 Explorer 4.6 V8 idle problems

My 2003 4.6 V8 has a high idle problem. During warm months the engine will idle from 1500 - 2000 rpm. Real problem when coming to stop when it will bang into first gear before stopping. Dealer first said it was the idle air control. Replaced idle air control myself with a new ford one. No difference. Then read that I should disconnect the battery for a few hours, then connect, crank and idle in park, then in drive and then reverse for the computer to learn the idle patterns. That seemed to work for awhile. The car has not had the high idle almost the entire winter. Now that things have warmed up, it back to it's high idle problem. Does not do it all the time. Has anyone else has this experience. Please help.

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post #2 of 2 (permalink) Old 03-27-14, 07:23 PM
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Re: 2003 Explorer 4.6 V8 idle problems

Have you tried cleaning the throttle body (MAF included?)

Ever notice that there's so many high performance parts available for GM products?

Did you ever think that maybe they NEED them?
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