Replaced Battery and Alternator car runs for a week and then is completely dead and will not start


Asked by Sep 18, 2014 at 01:27 PM about the 2008 Ford Explorer Eddie Bauer V8

Question type: General

We have replaced battery and alternator.  Runs for about a week, but after that will not
start.  Not even a clicking sound, completely dead

3 Answers


In all probability you have a parasitic drain somewhere in the electrical system. Check the easy things first. With a volt meter make sure the alternator is putting out the proper voltage when the car is running. They have been known to be bad right out of the box. A wiring diagram and a knowledgeable person with a meter is the next step.

1 out of 1 people think this is helpful.

Thanks OJ. My mechanic is doing the parasitic test, but has not found the problem yet. Going one at a time.


Parasitic tests have been done, but still the same issue. Started all week-end, but when I went out to start it this morning it just made a clicking sound. My mechanic has just thrown up his hands. He is thinking the ABS system is not communicating with the computer???? Have no idea what that means.

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