whats the problem

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Apr 21, 2009 | 04:44 PM

bansheeduner

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Joined: Oct 2007

Posts: 264

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From: Scottsdale, AZ

whats the problem

2001 f150 auto trans 100k 3.73 gears new pvc hose and elbow alternator intake plenum iac valve plugs coil packs no dtcs at all truck is super fast when its cold but when it warms up its a dog why is this no shop knows why.

Apr 23, 2009 | 02:18 PM

12ozd

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From: No.Va.

Guess this one you'll have to troublshoot hot.
Does it miss ? Or just looses power ?
Will it accelerate in neutral/park ?

Fuel pressure when hot ?

And my best internet guess is (exhaust).

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