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Re: Cold Start - Rough Idle
I would soak the plunger end of the IAC in WD-40 overnight and then work it loose and then give it a good flush with Carb Cleaner spray before buying a new one.
The oil pooling is not a PCV failure but a Ford design flaw on the Valve Cover that allows too much blow by to be drawn back into the intake manifold thru the PCV system which is the major cause for the Isolator Bolt problem aka. P0171 & P0174 trouble codes. The Valve Cover flaw was updated on later models by replacing the baffle inside the cover.
You can either buy a new updated Valve Cover or fix yours with intructions found in this forum (I tried seaching but it's not letting me at the moment... sorry)
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Current Rides:
2018 Honda Pilot EX-L - 3.5L V6 -{|}- 2004 Toyota Matrix XR 4WD 1.8 I4
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Past Rides:
2000 Ford Windstar LX - 3.8L V6 SFI - {|} - 2003 Ford Expedition XLT - 4.6L V8 SFI
2005 Chevrolet Malibu LS - 3.5L V6 SFI - {|} - 1991 Chevrolet Corsica LT - 3.1L V6 MFI
1995 Dodge Grand Caravan SE - 3.3L V6 MFI - {|} - 1980 Ford Mustang - 3.3L L6 1BBL
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