Hey guys.... when I put my voltmeter on the battery I get 12.45 volts and then I crank my car up and in idle the voltage is all over the place very quickly 14 7.50 13 5 12 is my regulator bad? Napa alternator Napa electronic regulator grey box thanks jr
voltage changing like crazy in idle
- Thread starter glorydays
- Start date
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KitCarlson
Well-Known Member
It might be your meter, picking up EMI from plug wires, or battery low. If your lights are not flickering, it is the meter. I had an old cheap one that would go crazy on a running car, if the meter battery was low.
Electronic voltage regulator must be chassis grounded before harness connected and power supplied. This is why they don't like to give refund/exchange on returns. The unit is easily killed at install. My volt gauge went from normal one day to twicking like crazy the next. Regulator was the fault.
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