1984 Chevy C10 Gauges

[chris1htx]

Hello all,

I have a 1984 Chevy C10. The speedometer and gas gauges tend to jump around every time I hit a bump in the road. Is this normal for these older trucks? Can I do something for the gauges to stop bouncing around? Any insight will be great, thanks!
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[Pulse_GTO]

Mine shows different levels depending on if I'm accelerating or slowing down.

[cdm10700]

my speedo used to bounce around but hasnt since i put new cable on
the gas gauge i would check wires, probly one getin pinched between floor an frame or something like that

[rollin thunder]

I have an 84 c10 and it did this as well got a new speedo cable and had a bad ground wire and a bad wire from sending unit and was touching bare wire to metal and was getting pinched in a couple different places. just replaced wires and all good

[motornut]

I had read about the bouncy gas gauge
heard it was because of aftermarket "Spectra" parts
I could read that name on my tank

assumed this was why my 78 gas gauge bounced with idiots
I added a ground behind the cluster where they go too one,didn't help
i bought and changed to a tach/gauge setup
had to rewire it and had to add a seperate ground for the gauge
and the bounce went away....

this past summer my 79 tank/sender rusted out
replaced it with "spectra" parts
as my auto parts guy said he's never heard of this prob
no bounce

speedo make sure it's in tight

[chris1htx]

That will be the first thing I'll check. Hopefully that's the problem, thanks guys!
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