Voltage guage always reads high

10

Asked by Chad M. Feb 14, 2019 at 09:44 AM about the 2006 Dodge RAM 2500 SLT Mega Cab 4WD

Question type: Maintenance & Repair

I have a 2006 2500 ram mega cab 4x4
5.9 Cummins. It is loaded out with
Banks upgrades: CAI, Higg Ram Air, 6
gun tuner, custom exhaust, etc. I
bought it this way 4 years ago. I just
replaced both batteries and the
alternator. My voltage guage on the
instrument panel reads high. Is this
normal? If not what is causing it?
See photo

6 Answers

1,655

Connect jumper cables and tap the opposite ends together on the free side and if it makes a huge firey spark than its correct in the gauge but if it makes an ish big one than your fine. Try on both batteries of course

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