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89 d100

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Old 07-15-2014, 04:17 PM
kingjohn2572
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Angry 89 d100

Where is the voltage regulator on this truck.Every part store tells me I have the normal type that is usually on the fire wall but its not there.Ive seen some threads that say its part of the IM but im not sure.
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Old 07-15-2014, 04:28 PM
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Originally Posted by kingjohn2572 View Post
Where is the voltage regulator on this truck.Every part store tells me I have the normal type that is usually on the fire wall but its not there.Ive seen some threads that say its part of the IM but im not sure.
I have never heard of the IM, but your voltage regulator is in the computer or ECM.

Dave
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Old 07-15-2014, 04:37 PM
kingjohn2572
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I was referring to the Ignition Module or computer if you like.Is their any way around buying a new computer. The truck runs good but it shows the alternator is only feeding the battery 12.5v on the truck,off the truck 14.5v
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Old 07-16-2014, 10:45 PM
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I was referring to the Ignition Module or computer if you like.Is their any way around buying a new computer. The truck runs good but it shows the alternator is only feeding the battery 12.5v on the truck,off the truck 14.5v
Not sure what "on and off the truck" means, but here is a kit so you don't have to replace the computer.
http://alternatorparts.com/external-...nator-kit.html

Dave
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Old 07-17-2014, 03:35 PM
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Simply wire in an external voltage regulator. Simply and cheap.



ECM - runs your fuel injection
Ignition Module - controls spark
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