Quote:
Originally Posted by VetteVet
It's quite possible that you have a wire from the battery side (Red) connected to something on the black side without going through the amp meter. Example would be the radio, a cigarette lighter or some light. It wouldn't create a problem unless it was drawing current all the time, in which case it would discharge the battery.
If you have the ampmeter wires off can you get anything to work like the loghts or horn or heater fan. This would help find the current crossover.
Do you have any mix and match from the malibu drive train concerning electrics, like an external voltage regulator, or alternator that would need to be hot all the time with key off?
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Checked wiring on back of alternator, constant 12 v. there with key off.
Replaced my fuel gauge, put everything else back together, cranked the engine, amp gauge just stays in the middle, no matter if key is off, or engine running.
I paid somebody to rewire the entire truck over 20 yrs ago when the front clip was done.
Never really paid much attention to the amp gauge or the wiring until now.
Don't think it was ever wired correctly.
Trying decide if I should buy a replacement amp gauge, or find an auto electric specialist to help me out.
Don't think there should always be 12 v constant power @ each of the 2 terminals on back of the amp meter.