Truck will not shut off wit Ign switch Ser.No. 48804047 - Technical Troubleshooting discussion in Forkliftaction's forums

TCM FCG25N6T:
Truck will not shut off wit Ign switch Ser.No. 48804047

I replaced the alternator on this truck due to no output. After installing the charge light stayed on. The alternator is putting out what appears to be a proper voltage. When I turned off the ign. switch the truck continues to run and te charge light gets brighter. Does anyone have a proper wiring diagram for this truck?
Thanks, John

Posted 22 Jan 2015 08:40
Discussion started by BREWSKI
Nebraska, United States

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What's the voltage at high rpm? Maybe if the voltage regulator is bad it is back feeding power from the alternator with the key off. You could try unplugging it and see if it shuts off.

Posted 22 Jan 2015 11:26
Reply by mrfixit
New York, United States

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