Question about 2003 Ford F150 Regular Cab

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Engine rinning rough

Engine pulsating whtle idiling in park no light or code need help

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3 Answers

I had a similar problem for some time then finally had a code which was lean fuel from air being sucked in through the manafold leak beyond the injectors.

It turns out that there is a TSB for a manifold leak which requires a new intake manafild gasket and bolts.

Luckally I had an extended service agreement or it would have cost me hundreds...

Good Luck!!!

Posted on Oct 16, 2008

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He is right i had one come into our shop the dealer couldent figure out turned out to be a crack in vacume hose was oil soaked from the back of intake

Posted on Oct 10, 2008

Check vacuum lines

Posted on Sep 27, 2008

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Posted on Jan 02, 2017

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