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1997 - 2003 Ford F150 General discussion on the Ford 1997 - 2003 F150 truck.

idle fluctuates

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Old Mar 30, 2014 | 04:02 PM
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Default idle fluctuates
Hello all, when I come to a stop, the idle fluctuates. one min. it's idling ok, the next, I hear it rev. .any ideas as to the cause? thanks
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Old Mar 30, 2014 | 04:39 PM
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Vac leak or IAC valve.
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Old Mar 31, 2014 | 03:18 PM
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changed the IAC valve recently. will check for vacum leak next. thanks
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