low idle
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low idle
hey my truck is a 1998 F-150 with a 5.4 liter engine i was wondering if anyone elses truck idles at 500 RPM because mine does it used to idle at 1000RPM but now it only idles at 500 and i have no idea whats wrong with it i did get exhaust done on it would that have anything to do with it if any of you can help it would be greatly appreciated
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I have a question what is a IAC sorry i don't know all the technical terms (17yrs old and i only do minor mechanical problems)
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Postmaster
Joined: Aug 2003
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From: South Texas
IAC = idle air control valve
sits on top of the intake, towards the back. Has an electical connector and a couple bolts. The truck usually has starting problems when the IAC is bad. It will start and stall out unless you give it a little gas. However, since you mention that it used to idle at 1k (don't think that's normal) and now its down to 500, it could be the IAC
sits on top of the intake, towards the back. Has an electical connector and a couple bolts. The truck usually has starting problems when the IAC is bad. It will start and stall out unless you give it a little gas. However, since you mention that it used to idle at 1k (don't think that's normal) and now its down to 500, it could be the IAC
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i think this might be the problem with my truck like when im siting at a light it will drop idle and sound like i have a racing cam and everyone thinks its a dragster dont get me wrong it sounds bad *** but is it good for the truck
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From: Wheatland, Mo
The IAC, (Idle Air Control valve), is located at the top/back of your intake manifold. Two bolts hold it on, and a 2 or 3 wire harness attached to it. Easy to replace. Usually cost about $70.