Electrical Gremlins Please Help
 

All, my volt meter is pegged at 18 volts whlie driving, when I turn the lights or any other electrical item on, volts drop to 14, then surge back and forth from 14 to 18. Lights in the truck get brighter and dimmer when the volts surge. New battery and voltage regulator, could this be a bad altenator. Please help electrical is so frustrating.

Re: Electrical Gremlins Please Help
 

I would think so easy check there are a lot of battery/service statations that do free alt checks be an easy way to cross it off the list at worst

Re: Electrical Gremlins Please Help
 

Sure does sound like a faulty regulator!!!!!!!

Re: Electrical Gremlins Please Help
 

Have you been able to verify the 18 volts at the battery, with the truck running? I've had extremely limited experience with an external voltage regulator, so I can't be of much help, but I will say it sounds like a definite overcharging problem via your gauge. It would be best to verify the voltage at the battery if you haven't already done so, and go from there.

Re: Electrical Gremlins Please Help
 

i like gremlins

Re: Electrical Gremlins Please Help
 

It sounds like the voltage regulator. You neglected to mention if it is external or you upgraded to an alternator with an internal regulator. I have heard that you could repair an external regulator. An internal one cannot be repaired, it would need to be replaced.

Re: Electrical Gremlins Please Help
 

Cdowns. I can't think of a better use for a Gremlin. :gi: