Join Date: Aug 2010
Location: Sassamansville, Pa
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First start checking your battery ground cable connections, especially the one coming off the pass side that gets grounded to the front of the engine block. Be sure your grounds are clean and tight. Next check the exciter wire on the back of the alternator, be sure it's got a good connection.
Have your batteries load tested seperately, you may have a bad battery.
Have the alternator load tested, it might be a bad voltage regulator.
A weak or damaged battery can cause all kinds of funky issues with our electrical system.
2004 F350 CC DRW King Ranch
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