Ruff Idle on cold start while in park
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Joined: Sep 2005
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From: Canoga Park,Ca
Ruff Idle on cold start while in park
Anybody have this problem. i turn it on and it runs fine for a second and then out of no where it start to sound like it has really lobey cams. it goes from 600 to 900 and back down somewhat fast. thanks
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Joined: Feb 2004
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From: indiana
Originally Posted by Buck50
Anybody have this problem. i turn it on and it runs fine for a second and then out of no where it start to sound like it has really lobey cams. it goes from 600 to 900 and back down somewhat fast. thanks
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Joined: Nov 2006
Posts: 1,981
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From: mass.
Originally Posted by Mrford
If it only acts up on a cold start is likely the iac valve, it is located on the drivers side of the throttle body is controls the air flow around the throttle plate at idle. It will act up on a cold start because the rod inside of it gets dirty and cannot open the valve far enough for a fast idle.
i had the same symptoms om my 97 4.6,cleaned the i.a.c valve. idles fine now