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Old 08-08-2017, 12:52 AM   #1
4SFEDZ
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Single red wire on top of sending unit?

How does it attach? 85 swb gmc. Not the ground, it's a single wire and kinda looks like it has a little boot over where it attaches.
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Old 08-08-2017, 01:08 AM   #2
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Re: Single red wire on top of sending unit?

which sending unit?
what engine?
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Old 08-08-2017, 06:24 AM   #3
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Re: Single red wire on top of sending unit?

305 and passenger side. Trying to drop the tank and would rather not just cut it.
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Old 08-08-2017, 06:31 AM   #4
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Re: Single red wire on top of sending unit?

ohhhhh...ok...when you said sending unit I was thinking temp or oil..
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Old 08-08-2017, 06:34 AM   #5
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Re: Single red wire on top of sending unit?

It just pulls off a pin. The rubber boot holds it on. Don't cut it just pop it off. I usually unbolt the ground wire from the frame. It's easier to get at.
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Old 08-08-2017, 06:34 AM   #6
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Re: Single red wire on top of sending unit?

ohhhhh...ok...when you said sending unit I was thinking temp or oil..
unser that boot should be a stud with a nut holding a wire ring terminal...should also be a ground wire that is a blade connector
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Old 08-08-2017, 06:44 AM   #7
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Re: Single red wire on top of sending unit?

gas sending unit
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Old 08-08-2017, 11:15 AM   #8
4SFEDZ
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Re: Single red wire on top of sending unit?

I doesn't look like it has a nut on it. Just kinda looks like a pin.
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Old 08-08-2017, 11:17 AM   #9
PunishedC10
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Re: Single red wire on top of sending unit?

Some of the different manufactorers make them differently, yours may just have a male pin on the top that a female connection on the wire plugs into.
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Old 08-08-2017, 12:32 PM   #10
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Re: Single red wire on top of sending unit?

^^^^correct^^^^...mine doesn't but some do
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Old 08-15-2017, 10:16 AM   #11
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Re: Single red wire on top of sending unit?

The sender has a button to snap on it
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Old 08-15-2017, 01:51 PM   #12
4SFEDZ
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Re: Single red wire on top of sending unit?

Thanks everyone. It was a button that came off pretty easy. Just wasn't sure.
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