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post #1 of 6 (permalink) Old 09-14-11, 06:18 PM Thread Starter
1997 Ranger XLT
 
Join Date: Sep 2011
Location: Gulfport, ms
Posts: 3
Exclamation Help!!!! Battery good, Alternator good.. but will not keep charge

OK guys help please. I am going crazy. Changed the tiiming belt and serpentine belt. Battery tested good keeps a charge when on charger. Alternator bench tested good.

When test between the alternator and the battery only showing 12.4

When remove pos term on Battery TRuck quits.

Battery Charger indicator light on when vehicle starts... charge on the dash indicator just over the white line on the good side.

why is there no charge happening between the alternator and the battery.

A friend suggested a fuse on the starter red cable ???? not sure where it is or even to look

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post #2 of 6 (permalink) Old 09-14-11, 06:23 PM
2002 F150 XLT
 
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Join Date: Nov 2008
Location: Oregon
Posts: 10,340
Re: Help!!!! Battery good, Alternator good.. but will not keep charge

What year is it. As a note, never remove the battery cable with the engine running on the newer vehicles. It can fry the PCM.

Bert
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post #3 of 6 (permalink) Old 09-14-11, 06:25 PM Thread Starter
1997 Ranger XLT
 
Join Date: Sep 2011
Location: Gulfport, ms
Posts: 3
Re: Help!!!! Battery good, Alternator good.. but will not keep charge

its a 1997 ford ranger xlt automatic 2.3 l4 cylinder
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post #4 of 6 (permalink) Old 09-14-11, 06:33 PM
2002 F150 XLT
 
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Location: Oregon
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Re: Help!!!! Battery good, Alternator good.. but will not keep charge

Hwere's a wiring diagram for it. Check figure 37. | Repair Guides | Wiring Diagrams | Wiring Diagrams | AutoZone.com

Bert
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post #5 of 6 (permalink) Old 09-14-11, 06:33 PM
2002 F150 XLT
 
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Join Date: Nov 2008
Location: Oregon
Posts: 10,340
Re: Help!!!! Battery good, Alternator good.. but will not keep charge

Here's a wiring diagram for it. Check figure 37. | Repair Guides | Wiring Diagrams | Wiring Diagrams | AutoZone.com

Bert
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post #6 of 6 (permalink) Old 09-17-11, 02:15 PM Thread Starter
1997 Ranger XLT
 
Join Date: Sep 2011
Location: Gulfport, ms
Posts: 3
confused Re: Help!!!! Battery good, Alternator good.. but will not keep charge

Totally replaced the wiring harness from Pig tail on the alternator to the voltage regiulator on the firewall to the connection on the Battery..... still will not charge.

If the brushes are bad in the alternator.. will it pass a bench test but not charge?

Any Ideas appreciated
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