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Bluevee33
01-07-2008, 11:02 PM
My voltmeter gauge keeps flopping back and forth from just under 14 to just above the orange area... I just put on a new alternator and have 2 newer batteries that just load tested great!! Why is this?? Earlier I even watched the gauge flicker while the turn signal was on!! It's a 105amp alt!! this shouldn't be happening right?? Thanks
Robert

DieselFreak
01-08-2008, 05:17 AM
Perhaps bad grounding...

grancito
01-08-2008, 10:51 PM
If the volt meter has a regular flicker, then the alternator regulator is faulty, I had that with a new one. If not then pull the instrument panel out and clean the stupid contact system on the back where it plugs in.

edzzed
01-10-2008, 12:31 AM
might try cleaning the passenger side positive battery terminal. big issue with the 6.5 i got tired of mine acting up and went to top post terminals. i also had an issue like you describe and changed out an alt. and a week later warrantied that alt. it turned out to be the positive connection on the passenger side batt. Ed