Battery gage read high

Asked by Mar 29, 2016 at 02:01 PM about the 1999 Ford Expedition 4 Dr Eddie Bauer SUV

Question type: Maintenance & Repair

I replace my battery and alternator three
months ago, and now my battery gage stay
on high all the time when I'm driving.  I also
noted when I turn on my lights or roll up my
window my car accelerates.

2 Answers

113,615

Don't trust the gauge, get a voltmeter and see what it is actually putting out, the fact that the RPM's climb when a load is put on it makes me think it is not outputting what it should be and the computer is trying to compensate by raising the engine speed. HTH

1 people found this helpful.
6,185

Go to one of your local parts houses and ask them to run a load test on your charging system. They should be able to tell you EXACTLY what the problem is.

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