Over charge

Asked by Ginny Jan 17, 2020 at 12:20 PM about the 2006 Dodge RAM 2500 Laramie Quad Cab LB 4WD

Question type: General

My 06 ram 2500 is overcharging and blowing the
alternator and batteries. I've replaced altanator
and batteries 3 times now. What's going on

1 Answer
26,810

oilyspill answered 4 years ago

This is for 5.7L engine. I couldn't get the whole diagram on one page and make it readable. You can see generator, that top terminal in diagram is generator bat terminal. Those two bottom wires go to pcm for generator field control. Maybe your generator is full fielding? Not a good idea except for a quick test. Could be wiring circuit problem, wires going to pcm, or pcm problem? Don't replace anything unless your testing points in that direction. Just my opinion. good luck

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