1990 Ford F 150 Tk Wants Cut Off Stop

1990 FORD F-150
192,000 MILES
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1990FORD
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  • 1 POST
Truck wants to cut off when I stop.

I have a 1990 F150 302
Oct 12, 2011 at 11:57 PM
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JACOBANDNICKOLAS
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Check for vacuum leaks and check fuel pump pressure.
Oct 13, 2011 at 12:17 AM
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WRENCHTECH
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You may have a bad IAC ( idle air control) but try eliminating any vacuum leaks and cleaning the throttle body first. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle. If it still has a problem, replace the IAC.
Oct 13, 2011 at 1:04 AM
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