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fuel gauge malfunction?

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fuel gauge malfunction? Empty fuel gauge malfunction?

Post by 76Chevelle2Tone Thu Oct 03, 2024 5:13 pm

The fuel gauge went suddenly dead and the needle froze at the 3/4 mark. A check of the wiring doesn't indicate a sending cable or grounding issue. I assume the fuel gauge is malfunctioning. Unfortunately, Eckler's replacement fuel gauge is out of stock and they seem to be the only one who carried it. Does anyone know who made the Eckler gauge? Can the gauge be rebuilt or do they have to be replaced?
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fuel gauge malfunction? Empty Re: fuel gauge malfunction?

Post by Limey SE Thu Oct 03, 2024 5:17 pm

I may have a Used gauge if wanted I will look in a little while if I have it Pay shipping and its yours as I am going to Dakota digital

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1977 Chevelle SE x2
One Mild original
one Wild NON original
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fuel gauge malfunction? Empty Re: fuel gauge malfunction?

Post by 76Chevelle2Tone Thu Oct 03, 2024 5:24 pm

Thanks Limey for your quick response. Yes please let me know as even a stopgap would give me more time to look for a repro if one exists.
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Post by Limey SE Thu Oct 03, 2024 5:37 pm

I don't recall you have sweep right as that's what mine would be ?

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Post by 76Chevelle2Tone Thu Oct 03, 2024 5:44 pm

I have the tried and true idiot lights with sweep fuel gauge! Older picture.

fuel gauge malfunction? Fuel_g10
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Post by 73 ss wgn Mon Oct 07, 2024 6:25 pm

These guys have repaired several gauges for me. Great work. https://www.clocksandgauges.com/

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Post by 76Chevelle2Tone Mon Oct 07, 2024 7:10 pm

Thanks for the link. I now suspect it is the PCB malfunctioning so I ordered one and will see what happens. But thanks again as it is useful.
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Post by g3chevy / Mr Pontiac Tue Oct 08, 2024 11:12 pm

It's very rare to have a fuel gauge go bad. I think your guess at the flexible printed circuit board could be your primary suspect. I use a pencil erasure to clean the contact points if they are oxidized. Works really well but be careful not to damage the circuit board. They break and separate very easily. To test your fuel gauge just put 12 volts to the positive prong and ground the negative prong and you should get your gauge needle to point to "E". Reverse the polarity and then it should read past "F". Hope this helps.
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Post by Limey SE Sat Oct 12, 2024 6:01 pm

76Chevelle2Tone wrote:I have the tried and true idiot lights with sweep fuel gauge! Older picture.

fuel gauge malfunction? Fuel_g10


I found my Gas Gauge I will ad a Pic shortly if you want it just pay the ship its yours like I mentioned

___________________________________________
1977 Chevelle SE x2
One Mild original
one Wild NON original
Anthony
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Post by Limey SE Sat Oct 12, 2024 7:16 pm

fuel gauge malfunction? 20241011
fuel gauge malfunction? 20241010

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1977 Chevelle SE x2
One Mild original
one Wild NON original
Anthony
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Post by 76Chevelle2Tone Wed Oct 16, 2024 3:58 pm

Well, it was the printed circuit board. Thankfully the correct PCB has been reproed and seems of decent quality. Fuel gauge working again as well as Oil idiot light. Thanks to Limey I have a working spare fuel gauge against the day .... Thanks to all commenters.
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