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4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 05-09-2009
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have another problem

went to work and my truck was running fine. it rained. then it stopped. went to start my truck and it started but died. did it again and gave it some gas and it was rough. then took my foot off the gas and it died. did it again and it idled inbetween 500 to 1000 rpms. well put it in first (03 xlt 4x4 5 spd) and it gets up to 1500 rpms and bogs down. but when i barely and i mean barely push the gas pedal it does fine. and it goes like that for all the gears. anyone know the problem?
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Old 05-09-2009
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you need a bullet in the radiator....

someone had this issue on here a few weeks ago. everytime it rained, their truck wouldn't start. can't remember who though.

Last edited by elanalvey; 05-09-2009 at 05:33 AM.
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Old 05-09-2009
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Old 05-09-2009
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I'd suspect one of the sensors. TPS, MAF, Crank, Cam.
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Old 05-09-2009
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yeah its your idle air control valve.
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Old 05-09-2009
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come on.... don't help him... bullet in the engine........



I work with some Spec Ops at my new command, they might be able to help....
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Old 05-09-2009
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#Turn the ignition switch to the OFF position.

#Disengage the wiring harness connector from the IAC valve .

#Using an ohmmeter, measure the resistance between the terminals of the valve.

#Due to the diode in the solenoid, place the ohmmeter positive lead on the VPWR
terminal and the negative lead on the ISC terminal.

#If the resistance is not 7-13 ohms, replace the IAC valve.

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