Another Fuel Gauge Problem - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*Mr. Green Jeans* · 07-05-2009, 02:00 PM

Hey Guys - I have a 72 custom Camper. This week I was pitting in ten bucks worth of gas and my son and wachted the fuel gauge go all the way to full and is stayed there. Since it's all original I figure the gas gauge went bad. I just put the new one in and now it reads wayyyyy past the full position...almost up side down. I know I put the gauge in right because of the dummy lights. Wiring looks fine (but not tested) where should I go from here??? Thanks

Sammy · 07-05-2009, 07:22 PM

Most common two simple things in the fuel system that get meesed up is the wire shorting out under the sill plate on the D/S and loss of ground at the tank. Removal of the seat and checking the float for proper OHMS thru the range of E to F would be next on the list. Believe there is a FAQ on fuel gage T/S. Good luck, post what solves your problem.

**LockDoc** · 07-05-2009, 07:44 PM

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I'm with Sammy on this one. Another thing you could check is the ground wire on the back of the instrument cluster. It clips onto a sheet metal tab under the dash. It may have had a bad connection before, but you may have knocked it off completely while you were working on it.

LockDoc

*Mr. Green Jeans* · 07-06-2009, 04:19 PM

Thanks Guys !!!!!!

07-05-2009, 02:00 PM	#1
Mr. Green Jeans Account Suspended Join Date: Mar 2009 Location: Glendale, Arizona Posts: 21	Another Fuel Gauge Problem Hey Guys - I have a 72 custom Camper. This week I was pitting in ten bucks worth of gas and my son and wachted the fuel gauge go all the way to full and is stayed there. Since it's all original I figure the gas gauge went bad. I just put the new one in and now it reads wayyyyy past the full position...almost up side down. I know I put the gauge in right because of the dummy lights. Wiring looks fine (but not tested) where should I go from here??? Thanks

07-05-2009, 07:22 PM	#2
Sammy Registered User Join Date: Apr 2000 Location: Bonne Terre, Mo Posts: 3,005	Re: Another Fuel Gauge Problem Most common two simple things in the fuel system that get meesed up is the wire shorting out under the sill plate on the D/S and loss of ground at the tank. Removal of the seat and checking the float for proper OHMS thru the range of E to F would be next on the list. Believe there is a FAQ on fuel gage T/S. Good luck, post what solves your problem. __________________ '69 Chevy Long Fleet & '71 GMC Short Step & Project "ODD BALL" "You can wash a pig, soak it in most expensive perfume. In the end it is still just a pig." ODD BALL build thread http://67-72chevytrucks.com/vboard/s...d.php?t=478629"

07-05-2009, 07:44 PM	#3
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,648	Re: Another Fuel Gauge Problem - I'm with Sammy on this one. Another thing you could check is the ground wire on the back of the instrument cluster. It clips onto a sheet metal tab under the dash. It may have had a bad connection before, but you may have knocked it off completely while you were working on it. LockDoc __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 -

07-06-2009, 04:19 PM	#4
Mr. Green Jeans Account Suspended Join Date: Mar 2009 Location: Glendale, Arizona Posts: 21	Re: Another Fuel Gauge Problem Thanks Guys !!!!!!

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