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Old 05-15-2018, 01:12 AM   #1
Ken Cook
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Re: Fuel gauge issue

You said there was as Air Ride Switch that shorted out.You should check all the fuses with a test light.

I added a radio to my truck recently. After passing the wires back and forth my gauge went to full. The gauge was un-plugged. That would be the same as no power or a blown fuse. I plugged it back in and it was back to normal.
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Old 06-24-2018, 01:48 PM   #2
shortbed70
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Re: Fuel gauge issue

Ok so I unplugged the plug at the gauge and it stays empty. Hook it back up and unhook sending wire plug at main harness and gauge goes to full.... Here’s the weird part! I drove it a bit yesterday and it worked for a few seconds then went back to full again. I’ve checked and all my grounds are good, not corroded or broken. What should I look for next? Sending unit or gauge?
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1965 Chevy Bagged,361 sbc,voodoo cam,1.5 full roller rockers,patriot 185cc vortec heads 2.02-1.60,vortec weiand polished intake,demon carb

my truckhttp://67-72chevytrucks.com/vboard/s...d.php?t=332884

Big Red Dog build
http://67-72chevytrucks.com/vboard/s...d.php?t=572274

Last edited by shortbed70; 06-24-2018 at 02:34 PM.
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Old 06-24-2018, 02:35 PM   #3
shortbed70
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Re: Fuel gauge issue

Quote:
Originally Posted by Ken Cook View Post
You said there was as Air Ride Switch that shorted out.You should check all the fuses with a test light.

I added a radio to my truck recently. After passing the wires back and forth my gauge went to full. The gauge was un-plugged. That would be the same as no power or a blown fuse. I plugged it back in and it was back to normal.
I’ve already done this after it happened
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Troy

1965 Chevy Bagged,361 sbc,voodoo cam,1.5 full roller rockers,patriot 185cc vortec heads 2.02-1.60,vortec weiand polished intake,demon carb

my truckhttp://67-72chevytrucks.com/vboard/s...d.php?t=332884

Big Red Dog build
http://67-72chevytrucks.com/vboard/s...d.php?t=572274
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Old 06-24-2018, 11:37 PM   #4
Captainfab
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Re: Fuel gauge issue

If you disconnected the sending unit from the system, then you have a short/ground somewhere. Grounding the sender wire will make the gauge go to full.
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Old 06-25-2018, 12:07 AM   #5
shortbed70
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Re: Fuel gauge issue

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Originally Posted by Captainfab View Post
If you disconnected the sending unit from the system, then you have a short/ground somewhere. Grounding the sender wire will make the gauge go to full.
I just unplugged the sending wire that feeds the gauge and it still went full but unplugging the two prong on the gauge it went dead empty. I can’t even get to my tank sending unit without dropping the tank....
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Troy

1965 Chevy Bagged,361 sbc,voodoo cam,1.5 full roller rockers,patriot 185cc vortec heads 2.02-1.60,vortec weiand polished intake,demon carb

my truckhttp://67-72chevytrucks.com/vboard/s...d.php?t=332884

Big Red Dog build
http://67-72chevytrucks.com/vboard/s...d.php?t=572274
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