Dash Gauges
Senior User
Joined: Sep 2003
Posts: 238
Likes: 0
From: Bridgeville,CA
Do you have voltage coming out of the voltage regulator on the back of the instrument panel? It should be about 5 VDC. If there is no voltage then start working back from there. If there is voltage the problem is probably in the gas guage or the wiring or the sender.
Junior User
Joined: May 2003
Posts: 51
Likes: 1
From: Eatonville, WA
Originally Posted by 68f250429
i checked for power coming in and out of the regulator with a test light and got nothing. so now what?
Thread Starter
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New User
Joined: Mar 2004
Posts: 15
Likes: 0
thanks for the help i had already replaced the regulator and still had no power coming out of the regulator. i did find two blown fuses under the hood. they are two seperate red wires with fuse holders on them. they apear to be original. one of them plugs into the main wiring harness that runs along the frame.any idea what these supply power to. the only gauge that has power is the alt. gauge but it dosen't any movement is this normal?
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Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
I have faced many trucks with "mystery wires" in them. Unless I can identify the purpose and whether it is working properly I jerk them out. I have cleaned up hundreds of rats nest wiring jobs. I strip it all back to the OEM harness and then start repairs.
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