Think i might have a problem - Ranger-Forums - The Ultimate Ford Ranger Resource


2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

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Old 08-15-2005
YellowEdge's Avatar
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Think i might have a problem

In the mornings or night if my truck hasnt been driven all day, when i get in it and start it you would think it was carburated. It revs up and down and sounds weak for about a min., almost like its haveing problems stayin running then its fine. ANy idea? I know its a bad descripion but if ya need more info just let me know....
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Old 08-15-2005
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IAC sensor

Sounds like the IAC sensor-Idle Air Control. Through time carbon fron the intake gets cloged on the valve and will stick. unplug the sensor and tap it a few times with like the handle of a scredriver or somethin similar, then plug it back in and start the engine. If that doesnt help, take the sensor off and spray it a few times with some intake cleaner then with a toothbrush(one that you dont use..preferably...heehee) and scrub it.
Hope this helps.
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Old 08-15-2005
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where is that located, in the TB? I know the TPS is there but.....dont know......
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