Gas gauge problem HELP!!!! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Heavy Evy · 11-03-2008, 01:29 PM

Im pretty sure there's another thread about this but im to lazy to search for it at the moment. So my gas gauge is not working I have checked the gauge with a test light everything tested ok so I moved on, I took the sending unit out to find the float had a hole and would fill with gas and sink to the bottom of the tank. I cleaned the float and fixed it with a soldering iron it worked for a day then the gauge just read empty again so I pulled the sending unit out again thinking the float had broke again but it was fine. I ordered a new sending unit from lmc and put that in thiking it would fix the problem again it worked for about 2 days then the gauge went back to empty. I have no idea what the problem is with the stupid gauge please help me!!!!!!

67ChevyRedneck · 11-03-2008, 01:59 PM

Sounds like a grounding problem?

jorgensensc · 11-03-2008, 02:02 PM

When you ordered the new sending unit, did you use your known good float again, or did you use the float they sent with the unit. I have had nothing but bad luck with newer floats getting holes in them Now I solder and test them for a few days before I even install them You could have a bad float... again. There are other possibilities, but I would check the float again.
Shawn

69DISASTER · 11-03-2008, 11:38 PM

I had a similar problem with my 69 it was the wire going to the sending unit. Broken under rocker panel. Replaced entire wire and it works fine now.

**leddzepp** · 11-04-2008, 12:08 AM

Quote:

Originally Posted by 69DISASTER

I had a similar problem with my 69 it was the wire going to the sending unit. Broken under rocker panel. Replaced entire wire and it works fine now.

Agreed...I would check the wire.

11-03-2008, 01:29 PM	#1
Heavy Evy born to lose Join Date: Sep 2008 Location: Salt Lake City, Utah Posts: 842	Gas gauge problem HELP!!!! Im pretty sure there's another thread about this but im to lazy to search for it at the moment. So my gas gauge is not working I have checked the gauge with a test light everything tested ok so I moved on, I took the sending unit out to find the float had a hole and would fill with gas and sink to the bottom of the tank. I cleaned the float and fixed it with a soldering iron it worked for a day then the gauge just read empty again so I pulled the sending unit out again thinking the float had broke again but it was fine. I ordered a new sending unit from lmc and put that in thiking it would fix the problem again it worked for about 2 days then the gauge went back to empty. I have no idea what the problem is with the stupid gauge please help me!!!!!! __________________ _____________________ '67 Chevy Belair Wagon 283 Powerglide '68 Chevy II Nova 2 door 350 TH400 Sold!! '71 Chevy C20 350 TH350 '71 Chevy C10 Burb 350 TH350 stolen totalled gone.... Burb Build http://67-72chevytrucks.com/vboard/s...d.php?t=475155 Nova Build http://67-72chevytrucks.com/vboard/s...d.php?t=498979 Wagon Build http://67-72chevytrucks.com/vboard/s...d.php?t=543052 Not giving a truck.

11-03-2008, 01:59 PM	#2
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Gas gauge problem HELP!!!! Sounds like a grounding problem? __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

11-03-2008, 02:02 PM	#3
jorgensensc Registered User Join Date: Jul 2003 Location: Cypress, Tx Posts: 4,005	Re: Gas gauge problem HELP!!!! When you ordered the new sending unit, did you use your known good float again, or did you use the float they sent with the unit. I have had nothing but bad luck with newer floats getting holes in them Now I solder and test them for a few days before I even install them You could have a bad float... again. There are other possibilities, but I would check the float again. Shawn __________________ 1972 C20 Suburban- Big Blue Betty '56 Chevy Bel Air Sedan- Frame up Restoration -What would you attempt to achieve if you knew you could not fail?- -I Refuse To Tiptoe Through Life, Only To Arrive Safely At Death's Door- R.I.P. EAST SIDE LOW LIFE

11-03-2008, 11:38 PM	#4
69DISASTER Registered User Join Date: Oct 2008 Location: CALGARY, ALBERTA Posts: 62	Re: Gas gauge problem HELP!!!! I had a similar problem with my 69 it was the wire going to the sending unit. Broken under rocker panel. Replaced entire wire and it works fine now.



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