Question about 2000 Ford Ranger SuperCab

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2000 Ford Ranger Alternator

I changed the alternator from autozone brand new and the batteries is not getting a charge.

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  • Grigory Zyryanov May 11, 2010

    Check for all connections one more time.

    Serpentine belt might be too loose.

    Good luck



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Have the alt tested there not very good do you have 12 volts going to the big wire on the alt and with key on you should have it to a small wire going to the regulator to turn it on

Posted on Dec 10, 2008

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I have a 1999 ford ranger that wasn't charging and had a new battery, good alternator and every was fine. The alternator was not outputing any elec. I checked the wires at the harness and they didn't have anything going to it. I traced it back to the 175 amp fuse next to the fuse box under the hood. It had power on both sides of the fuse but when I took it apart and put it on the ohm meter it showed nothing. After fixing that the alt worked. Then I noticed #17 fuse blown in the cab. That controls the radio, cig lighter, datalink cable, and I think that is all. I traced that back to the cig lighter. I disconnected that and reinstalled the fuse in the dash and radio then everything worked fine. Not sure what caused what but I suspect the lighter maybe failed. I don't use it but I don't know what else it could have been. Hope this helps anyone.

Posted on Dec 16, 2008


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