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First off I am new to the forum. I have a 1985 C3500 6.2 diesel flat bed, from Ohio.

Here's my issue. Driving home last nigth I turned on my wipers, they stop and everything on the dash went dead. Oil pressure, fuel gage, temp gage went to sleep state. This happens when I turn my head ligths on as well. With the head ligths on the truck will not turn off. What could be causing this? Bad ignition swicth (electical)? Wires crossing? I need help bad. Hopefully someone on here has had this issue before and fixed it, or someone can give me a starting point.

Thanks in advance
 

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sounds like a combination of a crossed wires and a bad ground to me, but im not wiring expert. start looking at wires, in a truck of that year there arnt as many as say in my 05.

Alex
 
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