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Alternator Not Charging

  • rriver07
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2 years 10 months ago #58687 by rriver07
Alternator Not Charging was created by rriver07
It's a 2006 Jeep Commander 4.7L. Alternator is not charging and the alternator has been replaced and checked to see if its working properly. Alternator is good, and battery cable to alternator is good. Any suggestions on what to do next?

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2 years 10 months ago #58691 by rriver07
Replied by rriver07 on topic Alternator Not Charging
FOR ANYONE THAT WANTS TO KNOW THE ANSWER TO THE QUESTION ABOVE...
I CHECKED WIRING AND EVERYTHING WAS FINE. BROWN/DARK GREEN WIRE WAS THE CONTROL VOLTAGE (12V). I WAS READY TO GIVE UP UNTIL I CHECKED THE SERPENTINE BELT PLACEMENT, TURNS OUT THE PERSON THAT PREVIOUSLY WORKED ON IT REPLACED THE SERPENTINE BELT AND PLACED IT WRONG MAKING THE ALTERNATOR TURN THE WRONG WAY.
SOLUTION: FIXED THE BELT TO CORRECT SPECS.
The following user(s) said Thank You: Tyler

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  • Noah
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2 years 10 months ago #58708 by Noah
Replied by Noah on topic Alternator Not Charging
Very curious.
I believe that any pulley that touches the same side of the belt as the crank pulley must turn the same direction as the crank pulley, no matter what route it takes to get there.
Was the smooth side of the belt on the alternator pulley creating the reverse rotation?
Either way, I'm glad it's working again!

"Ground cannot be checked with a 10mm socket"

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2 years 10 months ago #58730 by Matt T
Replied by Matt T on topic Alternator Not Charging
Interesting. I'm not sure how reversing alternator rotation would stop it working?? Unless it had an ADP pulley.

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