Total electrical failure
odanny
10-11-2008, 01:55 PM
My 95 Mark VIII had a total electrical failure while driving, my message center blinked a few times and I lost all power. I tested the alternator and it is fine. I was wondering what the most obvious sources are for this problem, and if it is a fuse, which ones are the most probable to have failed?
Just wondering where to start troubleshooting this issue. Thanks for any advice
Just wondering where to start troubleshooting this issue. Thanks for any advice
MagicRat
10-13-2008, 10:56 PM
Often, Ford products have a fuseable link in the main power wire coming from the battery. The link behaves like a fuse for the entire car and is intended to blow only when there is a very large power draw.
The link cannot be replaced, the main power wire must be replaced.
The wire can be tested. Also, if it blown, the car must be checked for a source of such a large power draw or the new link will blow too.
The only things I can think of to do this is a fault with the starter motor or starter solenoid, or a bare power wire rubbing on a metal part of the car. Any other electrical failure would blow the corresponding fuse in the fuse box; not the link itself.
The link cannot be replaced, the main power wire must be replaced.
The wire can be tested. Also, if it blown, the car must be checked for a source of such a large power draw or the new link will blow too.
The only things I can think of to do this is a fault with the starter motor or starter solenoid, or a bare power wire rubbing on a metal part of the car. Any other electrical failure would blow the corresponding fuse in the fuse box; not the link itself.
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