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Old 01-22-2011, 03:11 AM
caub22 caub22 is offline
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Default Air control Valve? I think something more maybe

I just got my truck out of the shop, new head gaskets, new clutch fan, new belts, hoses. Ok. Now 2 days ago I was driving home, and I noticed when I went front 4th to N the rpms didnt change near as much as normal. While in idle waiting for the light to change my rpms are high and when I shift to first they drop to what they should be. Only when I'm in neutral do the rpms go up. I think it's the IACV but I noticed it's not as easy to shift now either, like I used to be able to pop out the gear without using the clutch and shift it into the higher gear without using the clutch at all. Now I have to push the clutch in to shift, and sometimes I have to push harder for the thing to shift into gear. Could these high rpms mean my tranny is about to shit? Or is this all the IACV issues?
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Old 01-22-2011, 04:36 PM
Fordzilla80 Fordzilla80 is offline
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Default Re: Air control Valve? I think something more maybe

Have you tried cleaning the IAC?
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Old 02-13-2011, 07:52 PM
Flashgordy Flashgordy is offline
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Default Re: Air control Valve? I think something more maybe

I had the same problem on my 4.0, I cleaned out the throttle body, which was pretty gunned up, and cleaned the IAC valve, with intake doctor cleaner and it idled perfectly after that.
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