C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Fuel gauge sender winding broken

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Old Mar 31, 2017 | 11:08 PM
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Default Fuel gauge sender winding broken

I think my winding is broken in my fuel gauge sender. Can it be fixed? I thought about trying to reverse it 180 degrees.

If not, any way one of these parts can be had cheaply? I don't need the whole assembly just the winding or possibly the housing with winding attached.


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Old Mar 31, 2017 | 11:12 PM
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Just get a new one :-)
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Old Mar 31, 2017 | 11:21 PM
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Originally Posted by jv9999
Just get a new one :-)
Can you buy just this housing or do I need a whole new unit? The unit is pretty expensive I think.
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Old Mar 31, 2017 | 11:27 PM
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Originally Posted by Bfenty
Can you buy just this housing or do I need a whole new unit? The unit is pretty expensive I think.
You need the sender minus the fuel pump which you can reuse. I'd find a good used one. There must be a ton of them out there. I'm all for being creative, but yours is done.
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Old Mar 31, 2017 | 11:31 PM
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Yea. Just don't want to spend more than necessary
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Old Apr 1, 2017 | 11:58 AM
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This is where Ebay becomes your friend. There are most likley a bunch out there very reasonable.

Now, you COULD get yours to work, but messing with the winding will change the resistance and give you a false read.

Best to get a new one.
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Old Apr 10, 2017 | 11:50 AM
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Well, I put a dab of solder over the affected area, and bench-tested it. I was seeing resistance correctly and it was only about 1 ohm off from factory-well within a reasonable difference. However, hooking it back up to the car, my fuel gauge still reads full all of the time. Is there something else I can check? Can I check resistance using the wiring harness coming out the top of the sending unit without pulling it out again?
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Old Apr 10, 2017 | 11:59 AM
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You can short the sender wire to ground. That should send the the gauge to empty. As far as I know, solder won't stick to nichrome resistance wire.
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Old Apr 10, 2017 | 12:39 PM
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Originally Posted by jv9999
You can short the sender wire to ground. That should send the the gauge to empty. As far as I know, solder won't stick to nichrome resistance wire.
On the bench, it worked-no idea how well it stayed on once it was in the car though.

Which wire is the sender wire and which is the ground? Without having to take the sending unit out of the tank is preferable...
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Old Apr 10, 2017 | 02:05 PM
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Pink is the sender wire I believe. Black is always ground.

Last edited by jv9999; Apr 10, 2017 at 02:06 PM.
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Old Apr 10, 2017 | 02:06 PM
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Originally Posted by jv9999
Pink is the sender wire I believe. Black is always ground.
Thanks, I'll try that one out then.
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Old Apr 15, 2017 | 10:53 PM
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So it turns out the gauge DOES work. Just took a little while to drop off. Drove about 60 miles before it started to go down. So anyway, dab of solder is a quick fix for a broken sender winding, depending on where the break is. I'd still recommend a new unit eventually, but if you're on a tight budget like me, it totally works.
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Old Apr 15, 2017 | 10:59 PM
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Originally Posted by Bfenty
So it turns out the gauge DOES work. Just took a little while to drop off. Drove about 60 miles before it started to go down. So anyway, dab of solder is a quick fix for a broken sender winding, depending on where the break is. I'd still recommend a new unit eventually, but if you're on a tight budget like me, it totally works.
Congrats!
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