Fuel Gauge Not moving at all

MrFiveOh · Jun 2, 2017

So i've done some research on here and cant find a post with my issue. Most issues are a pegged fuel gauge or something similar.

My issue i've run into is my fuel gauge doesn't move at all. I have removed the ground from the tank and no change to the gauge. At one time my fuel gauge did work however empty was at 1/4 and full showed past "F'" all the sudden one day the gauge stopped registering and rest at 1/4. I'm not sure what other steps to take.

1974 C-10 350-700r4

1987 GMC Jimmy · Jun 10, 2017

Hmm... It sounds to me like your gauge sender was on its way out the door, and either something else broke, or the sender just kicked the bucket. Even though your situation is atypical, there are some pretty square body universal tests to try. See what you think about the last post on this page:

http://www.gmsquarebody.com/threads/fuel-gauge-not-a-ground-issue.17446/#post-329365

Mine acts identical to the way you say yours did. I blame the sending unit because the gauge and the tank are clearly communicating.

K5Blazerboy87 · Jun 12, 2017

Sounds like sending unit i replaced mine and recently my gauge sometimes tries to go up more then it normally i tap on gauge goes down so idk just old chevys gauges how they are.

78C10BigTen · Sep 30, 2017

Does your truck have 2 tanks? My gauge recently pegged empty and i changed the sending unit to no avail, my other tank is not hooked up and the switch valve does not work. Long story short the switch on the dash was on the opposite tank that is empty. If yours does check the switch lol

Fuel Gauge Not moving at all

MrFiveOh

Junior Member

1987 GMC Jimmy

Automobile Hoarder

K5Blazerboy87

Full Access Member

78C10BigTen

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