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Old 02-17-2009, 09:11 PM   #1
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rewiring 65 fastback

I am in the process of rewiring my mustang and have almost completed the task. The only problem I am having is the gauges. When I turn on the key they peg out. I have changed the regulator on the back and still nothing. Help
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Old 02-18-2009, 08:32 AM   #2
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Re: rewiring 65 fastback

Do all gauges peg out? Typically that's a voltage regulator problem, but you're already tried that. (Dumb question, but when you say regulator you're talking about the tiny silver one behind the instrument cluster, right? Not the larger one near the battery in the engine bay?)

The fuel gauge could spike if the wire was grounding somewhere along the line back to the sending unit in the tank. Maybe the other gauges are having the same issue.
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Old 02-18-2009, 09:59 AM   #3
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Re: rewiring 65 fastback

sounds like the sender is going to the power by accident causing the needle to jump over~ hmm
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Old 02-18-2009, 08:52 PM   #4
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Re: rewiring 65 fastback

It is the small one on the back of the gauge cluster. went to O'rielys tonight to get a new one will no more tommorrow
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