High Idling help please

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Nov 15, 2011 | 06:51 PM

574_ford

Thread Starter

New User

Joined: Nov 2011

Posts: 2

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From: Alaska

High Idling help please

I have a 95 F150, it idles high on start and takes about 2 mins to drop. I'm not sure why its doing this, just started doing it these past few months. If I take off before it drops, it likes to act like its going to die. I had the alternator replaced this past spring. Anything anyone can suggest would be greatly appreciated, thanks.

Nov 15, 2011 | 06:56 PM

SCRebel

Fleet Mechanic

Joined: Jun 2011

Posts: 1,324

Likes: 3

From: Conway, South Carolina

Have you sprayed any ether around the intake? to check the intake gasket.

Nov 15, 2011 | 07:32 PM

bn536

5th Wheeling

Joined: Sep 2011

Posts: 43

Likes: 2

I agree with SCRebel. Also, some low buck attempts, grab some TB Cleaner and Q-Tips. Go to town on the EGR (I suggest not directly spraying diaphragm), IAC, and TPS. If the idle were staying high, I'd suggest cleaning the PCV Valve breathing tract (replacing the valve is a cheap, easy way to rule it out as well). Good luck.

Nov 16, 2011 | 02:23 AM

rla2005

Fleet Owner

Joined: Oct 2005

Posts: 20,789

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From: Kentucky

Check for codes, then proceed accordingly. Sounds very much like a vacuum leak, but no sense throwing parts at the problem without checking for codes first.