Help with fuel gauge - The 1947 - Present Chevrolet & GMC Truck Message Board Network

R.O.B. · 12-27-2021, 05:44 PM

My fuel gauge was working just 2 days ago, now it just reads empty when it should be over 1/4 tank.

Back story, I inherited this 67 C20 a few months back, and it had been sitting for over 19 years outside. Since I've brought it home, I've installed a new tank and sending unit. Gauge didn't work then. I took out the dash and cleaned up the connectors and the circuit board wiring and the fuel gauge came to life. It had been working just fine until 2 days ago.

If I unplug the wire from the fuse panel (with key on) the gauge will go to 3 o'clock. Plug it back in, empty. If I ground the fuse panel connector, empty. I even added 5 gallons of fuel, no change.

Please give me some direction on where to go with this, as I ASSUME it's not the sending unit or the float being as they are only 2 months old.

Rob

**LockDoc** · 12-27-2021, 07:15 PM

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Hi Rob,

I don't have time right now to go over this but if you type or copy and paste the 3 words " fuel gauge vettevet " into the google search box up above, click on the circle in front of "67-72chevytrucks.com and click on the Google button it will show a lot of threads about the fuel gauge problems.

LockDoc

**HO455** · 12-27-2021, 07:41 PM

I believe this may be the thread LockDoc was referring to.
Good luck.

https://67-72chevytrucks.com/vboard/...d.php?t=640615

12-27-2021, 05:44 PM	#1
R.O.B. Registered User Join Date: Jun 2021 Location: Buckeye, AZ Posts: 87	Help with fuel gauge My fuel gauge was working just 2 days ago, now it just reads empty when it should be over 1/4 tank. Back story, I inherited this 67 C20 a few months back, and it had been sitting for over 19 years outside. Since I've brought it home, I've installed a new tank and sending unit. Gauge didn't work then. I took out the dash and cleaned up the connectors and the circuit board wiring and the fuel gauge came to life. It had been working just fine until 2 days ago. If I unplug the wire from the fuse panel (with key on) the gauge will go to 3 o'clock. Plug it back in, empty. If I ground the fuse panel connector, empty. I even added 5 gallons of fuel, no change. Please give me some direction on where to go with this, as I ASSUME it's not the sending unit or the float being as they are only 2 months old. Rob

12-27-2021, 07:15 PM	#2
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,388	Re: Help with fuel gauge - Hi Rob, I don't have time right now to go over this but if you type or copy and paste the 3 words " fuel gauge vettevet " into the google search box up above, click on the circle in front of "67-72chevytrucks.com and click on the Google button it will show a lot of threads about the fuel gauge problems. LockDoc __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 -

12-27-2021, 07:41 PM	#3
HO455 Post Whore Join Date: Feb 2016 Location: Portland Oregon Posts: 10,970	Re: Help with fuel gauge I believe this may be the thread LockDoc was referring to. Good luck. https://67-72chevytrucks.com/vboard/...d.php?t=640615 __________________ Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377



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