gas gauge goes back an forth when im moving.

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sidschev

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sidney
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1984
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c1500
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both my 77 an my 84 do this. is there a way to stop that so i can get an accurate reading of fuel.
drives me nuts when the fuel gauge goes back an forth while im moving the truck...
 

Matt69olds

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455 Olds
Every old car does that to a certain extent, the square body trucks are some of the worst. I’m not sure what GM did to dampened the sensitivity of the sending units in the later years.
 

sidschev

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ya ever one ive owned does that......i hate it....i dont know how to tackle that.....maybe digital ??????
 

fast 99

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Brian
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Yeah, I am curious on this one. One of mine jumps about 1/2 way when it is anything but full. Thought about installing a condenser in gauge feed.
 

Octane

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Eddie
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Many things factory did with 70s vehicles were just not the way they should have been.This only one of them.I can hardly believe how crappy some body parts fit,and the paint defects.Molding issues,handles coming off.The bad rep the big three got back then was well deserved.And has haunted them,and us for years.
 

sidschev

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My fuel gauge on my k10 outruns my speedometer on its way to "E". So the fluctuation is actually fuel burning.lol
HAHA yup thats how i feel on my 77 sne gets about 4 -5 miles to the gallon . you can watch the fuel gauge go down while driving that guzzler
 

sidschev

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has any one installed digital gauges wondering is that helps or do they need a special float thingy in the tank....???
 

Randy and Easton

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Ok @SquareRoot and @Bloodhound1981 y’all stay quiet…. Easton reads this stuff and after all the work to get all the stock gauges working I don’t want to have to now do the Dakota upgrade!!!! I need some free time….hahah!!!
 

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sidschev

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yup them is pricy but hey if it will fix that dam gauge im in. that has always drove me nuts....
 

squaredeal91

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My 91 square seems pretty smooth all the time on both tanks. I do remember my mom's 69 c10 would bounce and clang almost when low lol. My 66 c20 not as bad.
 

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