2003 Ford F-150 idles rough

Tiny
CHAZ66
  • MEMBER
  • 2003 FORD F-150
  • V8
  • 2WD
  • AUTOMATIC
  • 62,000 MILES
I have a 2003 f-150 and when I start it up it goes
right up to 1,500 rpm then it comes down under a 1,000rpm and after about 20 to30 sec it starts to run
really rough most of the time stalling. Other than that
its running fine I replaced the air, fuel filter change the oil I was told it might be sensor or two going out
or my fuel injection needs serviceing
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Thursday, February 28th, 2008 AT 9:27 PM

1 Reply

Tiny
BLACKOP555
  • EXPERT
First I would like you to check your IAC motor it is located on the throttle body, and secondly I would like you to check the pcv valve, it should rattle when shaken, also clean out the throttle body and the plate.
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Thursday, February 28th, 2008 AT 9:29 PM

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