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while i was driving along today my battery voltage gauge suddenly peaked up to the maxwhen i pulled over as soon as i started getting slower it dropped back down to normal and the rest of the way home it stayed normalwould a short somewhere have caused this?i had been using cruise control but im not sure if i had it engaged when it happenedmaybe it was the cruise control and once i slowed down causing it to disengage it returned to normal?:shrug:

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Ok after trying an external voltage regulator with no luck I had the alternator tested and it was doing some screwy things New alternator in and I've got only 12v reading in the gauge and after a few minutes it drops to Zero with no effect on brightness of lights --- I am here: http://maps.google.com/maps?ll=42.674987,-84.075746

explain this again? what is the voltage reading on the battery terminals when idling? are you sure the grid heater solenoids are not stuck closed? i dealt with a similar issue of zero on the batt gauge...

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