Question about 1998 Ford Explorer

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Lite tapping in engine,very ruff idle,stops when idled up and runs smooth

Lite tapping in engine very ruff ldle stops when ilded up, runs smooth 4.0 v6

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Ruff idle may b idle controll senc. ----tapping may be plugs-- wires, and or gas try 91 oct gas next 3 tanks and see thats the cheeepset place to start

Posted on May 30, 2009

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1 Answer

RUFF RUNNING CAR/ IDLES RUFF


use carb cleaner spray on the inside of the throttle body.

use super unlead only to prevent buidup.

cold engine only.

hope this helps
thank you
jm

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Only runs ruff during park and idle.


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Yes the idle air control motor controls the idle basically it is a meetered vacuum leak

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