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Unread 05-02-2013, 10:40 AM   #1
02grandy
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Wj 2002 grand cherokee 4.0 cam/cam sensor adjustment cause problems?

so i had a problem where my IAC motor was bad but im still having a problem with my idle being high after starting it . so i have to bring it back to those retards. the tech had his machine on my jeep and said the cam sensor or cam was " OFF" so he " ADJUSTED" it. would that now have the components related to the cam be hitting in different spots possibly throwing things off from worn in parts making the engine louder?????

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Unread 05-02-2013, 11:34 AM   #2
ChrisHager
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Was the 'tech' at a jeep dealer? If not, the only way he could have accurately adjusted the cam sensor was with a DRBIII tool which is extremely expensive.

Adjusting the CPS won't cause anything to 'hit' another part. It adjusts your fuel trim and will make it run horribly/not at all if it's adjusted too far out.
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Unread 05-02-2013, 11:33 PM   #3
02grandy
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no it was at the jeep dealer he was fixing my IAC motor and also did that for free yes with the drbIII machine
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Unread 05-03-2013, 08:17 AM   #4
ChrisHager
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If he used the DRBIII machine, you should be good. Look into replacing the TPS and cleaning the throttle body while you're at it.
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Unread 05-03-2013, 08:45 PM   #5
02grandy
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replace tps 2 years ago. bad already?????
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