Question about 2001 Ford F150 Styleside SuperCrew
Might want to check the IAC ( Idle Air Controller ) on the back of the throttle body. You will need to remove the plastic throttle body cover to gain access to it. 2 8mm head bolts hold this on to the back of the throttle body
Wen my 2001 5.4L did this, I cleaned the plunger in the IAC with 90% Isotropy Alcohol and Q-tips, the other route is throttle body cleaner ( not carb cleaner ). I used the 90%, when I was done, shook it off, let it sit for 5 min and reinstalled ( the 90% evaporated very quick ).
The plunger could be gummed up, and it only has the issue when cold. The 2nd time I had the issue I replaced it ( in '03 ~ 70.00 online at Tasca ), this is what the new one looks like :
The IAC is opened when the butterfly is closed, to allow air in the back of the throttle body.
Posted on Oct 24, 2010
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Posted on Jan 02, 2017
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