Posted 9/21/2012 09:24 (#2602116 - in reply to #2601901) Subject: Re: Magnum 305 problem
Ohio
I'm willing to bet its the alternator. They can make gauges do wacky things when they're going bad. Had one in a GM truck one time that was still charging but the speedometer was all over the place. Put in a new alternator and the speedometer worked.