Electric problem

Asked by Feb 15, 2013 at 10:18 PM about the 2000 Dodge Ram 1500 4 Dr ST Extended Cab LB

Question type: Maintenance & Repair

While driving voltage gage will drop to zero I have a new battery and alternater is good . If I shut the truck off and
restart the gauge will reed 14 volts after driving a few feet gauge drops to zero.  And now while vehicle is running all
lights dim and all Gages go to the far left position. What causes this????

5 Answers

Defective alternator. Someone must have done things improperly with the wiring and comprimized the operation of the onboard voltage regulator. Replace. output regulated voltage should be 13.5 to juice a 12V battery.

3 of 3 people found this helpful.
975

Voltage regulated maybe the cause

3 of 3 people found this helpful.
975

Regulator sorry bout the typo

fergie, just for future reference, when you make a typo I do it all the time, copy your post. paste it in another answer box, edit it to correct, post, then delete post w/typo

30

I have this same problem.. driving down at higway speed and Voltage light will flash... truck runs like crap and eng light will flash... shut down n restart and it runs fine.. 5-6 starts later eng light goes out till it does it again... changed battery and alt. disapeared for 6000 miles now it does it again it bugs the hell out of me.. Dodge dealer says they cant find anything wrong... bad alternator?

3 of 3 people found this helpful.

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