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82 Fuel gauge

Rmodeler

Well-known member
Joined
Oct 2, 2005
Messages
57
Location
Goshen, Indiana
Corvette
'82' Silver Blue
It never goes below ½. When filled it goes a little ways past the full mark. I replaced the fuel pump(w/85) a while back, and the float seems to be totally free, nothing obstructing it. Is it a faulty/sticking fuel gauge, or are there some other thngs to check out before replacing the gauge? Does the gauge come out from the front by removing the 4 screws that I can see on the front?
 

Mr.Cool

Well-known member
Joined
May 5, 2002
Messages
152
Location
NW Florida
Corvette
2005 Magnetic Red Coupe / 82 Silver Green
Unplug the harness at the sending unit then turn the ignition to on. Does the gauge read empty? If so then look to your sending unit. If not all guages are accessed from the back.
 
Z

zgator

Guest
Mine does the same thing.I'm going to leave it alone because I'm going to an 85 pump pretty soon anyway.
 

Rmodeler

Well-known member
Joined
Oct 2, 2005
Messages
57
Location
Goshen, Indiana
Corvette
'82' Silver Blue
I replaced the sending unit and still have the same problem. In fact the gauge only goes down to 3/4 now. What should I check next?
 

minifridge1138

Well-known member
Joined
Feb 2, 2007
Messages
908
Location
USA
Corvette
1982 Black Fastback
Here is a quick question: when the gauge reads 1/2 (or 3/4 according to you latest post) is the tank actually empty?

Due to some modifications by the previous owner, my fuel lines are hooked up backwards. The fuel pump is pumping out of the return line. Since the return is mounted higher in the tank than the pickup, my car can never get the last few gallons in the tank.

This means my guage is accurate, but when it reads 1/4 tank, I'm out of fuel.

The next time it reads 3/4 and behaves like it is out of fuel, see how many gallons it takes to fill it up. If it takes 23 gallons of gas, then the tank was empty and the gauge is wrong.

If it reads 3/4 and it takes 6 gallons, then the gauge is accurate and you have a different problem.
 

jdp6000

Well-known member
Joined
Aug 23, 2004
Messages
646
Location
Aurora, Ontario, Canada
Corvette
1982 CROSSFIRE
There is a float in the tank. There is also a sock on the pump. either the float bottoms out and hits the tank or the sock has shifted and is obstruction the float. Thats assuming the guage is fine.

See the float and sock in the picture below...

FuelPump.jpg
[/IMG]
 

Rmodeler

Well-known member
Joined
Oct 2, 2005
Messages
57
Location
Goshen, Indiana
Corvette
'82' Silver Blue
Sending unit is new. Made sure that it could move freely when I installed it. The problem must be with the gauge.
 

Stephen Ridner

Active member
Joined
Nov 7, 2003
Messages
29
Location
Mi
Corvette
1998 Pacer 2005 LMB 1998 purple pearl vet
It could be the plastic bladder in the tank is some how stopping the float from moving freely. Common problem in 82 the bladder pulls away from the tank and floats in the way of the sending unit.
 

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