Question about 1998 Ford Expedition
Ok...firstly check what i call the obvious....maybe the glovebox light stays on when you close the glovebox ??? or maybe the interior light at the back (Boot) is on for some reason ???
sounds silly but I have come across a few of these ones before...
secondly, you can check the charge rate of your alternator....it should be 13.8-14.2v at idle, measuring with a mutilmeter positve to negative.
if this is bad, alternator issue ???
if this is good and alternator is charging.....the next test is a discharge test...disconnect battery negative and place multimeterbetween negative post on battery and negative cable (series) --- note you will lose your radio code doing this, so make sure you have your radio code.........------and the reading should be 0.05A, with nothing on...any higher than this and it is drawing current somewhere..eith it still connected, pull fuses until reading drop to 0.05 and this is the circuit to start tracing to find out what is drawing the current..good luck
Posted on Aug 25, 2010
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Posted on Jan 02, 2017
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