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Old 07-04-2006, 02:20 PM
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T.A. wiring issues

First off let me say I am a mechanic However I am NOT an electrician. My problem is that mt 77 Trans Am has this on again off again problem. Something under the dash pops and my tach and power windows quit working. It may stay that way for a week or maybe just 10 minutes. Then it pops again and everything works. Its not the grounds and its not the circuit breakers for the windows either. Upon visual inspection there are no visual burns anywhere or naked or shorted out wires. Any Ideas???

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Old 07-04-2006, 05:26 PM
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Doc here,

Disconnect the battery, Carefully Pull the fuse buss..and check the back of the buss, where the wires solder into the Brass bars..

Upon careful inspection, I'll just bet you'll find a broken solder joint to one of those bars..And If so, carefully re-solder it back onto the bar.

The only other cause I can think of If your SURE the wires are not suspect, Is a faulty fuse holder..(loose connection)..check for that..

To find the buss bar problem, before pulling the fuse buss, and power connected, with the problem in evidence, get out your DVOM, set for VDC, V X 50 , or auto range, and measure on BOTH sides of the fuses on those items..If they are dead on BOTH sides..it's the feed to the bar..

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Old 07-04-2006, 07:58 PM
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Thanks I will try that tommorow at work. I will let you know what I find.
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