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Truck starts to high

(1999 Ford F-150)
in Friendswood, TX on June 04, 2010
my truck when it is started runs high above 2000rpms than rumbles down immediately and turns off. After about 5-10 turns it starts up fine. i have cleaned the entry into the throttle body and replaced the idle air control valve with no luck.
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Popular Answer
on June 04, 2010
I THINK YOU MAY HAVE AN OPEN CONTACT AREA IN THE TPS SWITCH ON THE THROTTLE VALVE!Have it looked at and scanned it will narrow the problem down for a good diagnosis. There are too manny components in the fuel injection system that may have an effect on running.
on June 04, 2010
vaccum leak threw intake manifold. you need a shop with a smoke tester to isolate the leak is the best way. eserini's automotive
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