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Author Topic: 87 c10 fuel gauge wiggles....  (Read 4114 times)

Offline Zeked

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87 c10 fuel gauge wiggles....
« on: November 02, 2009, 05:31:51 pm »
My 87 short/step has a problem with the fuel gauge... the thing wiggles!  Both tanks, and it reads correctly when the truck is still.

As I drive it bounces.... does not matter the amount of fuel in the tank(s).    Is there a resistor on the printed circuit plastic that should dampen this behavior?

Thanks

Zeke
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Often Wrong......Never in Doubt!

Offline Marc

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Re: 87 c10 fuel gauge wiggles....
« Reply #1 on: November 02, 2009, 05:34:28 pm »
Most older GM products I have had do this...I've always chalked it up to the gauge design, which isn't a slow-reacting thermal type...it uses some sort of magnet affair.
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Offline emr_09

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Re: 87 c10 fuel gauge wiggles....
« Reply #2 on: November 10, 2009, 07:14:14 pm »
Mine do this to and I have always wondered what causes it. I wonder if the aftermarket tanks dont have baffles in them or something to keep the fuel from slashing around
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79 GMC Shortbox 4x4
383stroker/350t

83 Chevy Shortbox 4x4
350/350

Offline Captkaos

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Re: 87 c10 fuel gauge wiggles....
« Reply #3 on: November 10, 2009, 07:27:50 pm »
It is the design of the sending unit that causes it to float around.
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