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Ford elecrical issue..need some help

Printed From: the12volt.com
Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=50029
Printed Date: May 13, 2025 at 11:58 AM


Topic: Ford elecrical issue..need some help

Posted By: MAXST
Subject: Ford elecrical issue..need some help
Date Posted: February 13, 2005 at 3:38 PM

Hey all i need some help. This is all on a 1990 Ford F150 with the 5.0 w/auto 2wd.

ONLY when the headlights are on the tail lights DO NOT work...but off they work fine.

I checked all the fuses that i can find...not one blown...but now the whole instrument panel does not work...all from unpluging a few fuses and putting them back?  Odd to me...

I know there is a connection, but no signal.  Since when i start it up, the volt meter tweaks then returns to the normal off position like it would when the truck is parked and off.  This be a sensor problem?  But that wouldnt make much sence since none of the other guages work..

Anybody have any ideas whats up?



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Replies:

Posted By: auex
Date Posted: February 13, 2005 at 4:53 PM
Bad relay? Bad Switch? Bad grounds? I know instrument clusters in old vehicles have there grounds go bad.

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