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Stuck throttle plate
vacuum leak
bad TPS
I used to drive mine over 500 miles from DC to Columbia SC and it would idle high once I finally stopped. A guy did something to the throttle to loosen it but....the solution is the idle air control valve. Its right in front of the windshield wiper fluid. Its as easy as replacing the TPS which is two bolts holding it on but make sure you get the right TPS and a Motorcraft idle air control with gaskets. If you dont you might have the same issues again. Easy to replace if you have a socket wrench.
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∙ 15y ago
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