Quote:
Originally Posted by techman1
I second the ground strap. Even more, replace. May be connected good, but I have been told that even if it looks good, over time it will build up resistance.
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A simple voltage drop measurement across the battery ground cable will tell you that.
All he has to do is turn on all high current devices (high beams, rear window defroster, cabin fan on high, etc) and measure the voltage drop across the battery ground cable. It should be in the millivolts at the most.