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Idle Problems

3404 Views 2 Replies 2 Participants Last post by  joeb
Hello Everyone, recently my truck thru a code for a bad IAC valve,( would'nt hold an idle). I bought a ford valve to replace it and now the idle is ok when its in park(700rpm) but when i put it in drive the idle increases to around 1100 rpm but not all the time and increases even more if i turn on the AC. as i'm driving i can remove my foot from the gas and the idle will hold where its at for a few seconds then very gradually go down. can anyone point me in the right direction as to what to look for. thanks joe
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try this

i had the same problem with my truck , look for an open vacume line and plug it of find out were it belongs
yea I was thinking it could be a vaccum leak was gonna check that out first chance thanks for the reply matt
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