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Joined: Jun 2008
Posts: 30
Grease Monkey
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OP
Grease Monkey
Joined: Jun 2008
Posts: 30 |
The fuel gauge on my '65 Impala reads full all the time. It used to only come up to about 2/3 full, but as you drove, it would go down, so I always figured that when it showed empty, I had about 1/3 of a tank left. Now it just stays on full. Do I need a new sending unit, or could it be something in the wiring? Thanks.
Randy
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Willwood Engineering
Wilwood Engineering designs and manufactures high-performance disc brake systems.
Wilwood Engineering, Inc. - 4700 Calle Bolero - Camarillo, CA 93012 - (805) 388-1188
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Joined: Dec 2001
Posts: 10,379 Likes: 1
Technical Advisor ChatMaster - 10,000
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Technical Advisor ChatMaster - 10,000
Joined: Dec 2001
Posts: 10,379 Likes: 1 |
YES! 
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
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Joined: Jan 2008
Posts: 828 Likes: 6
ChatMaster - 750
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ChatMaster - 750
Joined: Jan 2008
Posts: 828 Likes: 6 |
Randy there should be a connector in the trunk, near the latch if I remember right, and I think it should be a tan wire. If you disconnect the wire and ground the end that goes to the front of the car with the key on the gauge should go to empty. If the gauge goes to empty than that means the wire from there and the gauge are ok and you most likely need a sending unit, but make sure the ground wire that comes off the sending unit is good.
Dens Chevys 1927 Speedster 1928 coupe 1941street rod 1947Fleetline 4 door 1949 1/2 ton Pickup (sold) 1954 210 4 door 1972 Monte Carlo 2003 Corvette convt..
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Joined: Jun 2008
Posts: 30
Grease Monkey
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OP
Grease Monkey
Joined: Jun 2008
Posts: 30 |
YES!  Yes, I need a new sending unit or yes it's the wiring???
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Joined: Dec 2001
Posts: 10,379 Likes: 1
Technical Advisor ChatMaster - 10,000
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Technical Advisor ChatMaster - 10,000
Joined: Dec 2001
Posts: 10,379 Likes: 1 |
It is most likely one or the other. If you isolate the sending unit and determine it is OK, then you must check for a wiring problem. Some suggestions on the wiring is in a post above. 
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
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