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

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Old 12-09-2012
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need idle trouble shooting help

iv cleaned the iac and the throttle body with sea foam and sea foamed the engine. still idles like ****. when u turn it on it just goes up and down and wants to die. i havent checked for vaccum leaks. i have unplugged the IAC to see if anything would happen like u troubleshoot the maf. but there was no idle change. i hurd that means ur IAC is bad. it throws a p1507 code. IAC not working up to standards. for get the real name but thats what it means. anything else to check rather then vacum leaks and replace the IAC
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Old 12-09-2012
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Might be worth replacing the throttle position sensor (TPS). It controls the butterfly and if the unit is damage physically or internally at the circuit, it could also add to a fluctuating idle.
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