Fuel gauge question

[Fury Rookie]

The fuel gauge in my 68 fury is usually on E but sometimes around corners will jump to 1/4 or more and slowly goes back to E. What do you guys think is haywire. Thanx Frank

 

[3175375]

The fuel gauge in my 68 fury is usually on E but sometimes around corners will jump to 1/4 or more and slowly goes back to E. What do you guys think is haywire. Thanx Frank

Sending unit is probably bad.
I don’t know where’s the best place to get a replacement, but I suspect others will chime in on a source.

You may also check the ground at the sending unit. It’s usually a clip that spans the hose between the sending unit and fuel line.

 

[halifaxhops]

I am thiking the float is bad,

 

[Sixpactogo]

It could be any number of reasons. Send unit issue, poor connections at dash, poor ground. You gotta start testing with an ohm meter. As was mentioned in post #2. Start with testing the spanner across the hose at the tank. Then ground the wire from the sender to the gauge and see if the gauge goes to Full. 50 + years takes its toll on electrical circuits. I'm betting on bad continuity somewhere in the circuit.

 

[Ontarionewport]

The fuel gauge in my 68 fury is usually on E but sometimes around corners will jump to 1/4 or more and slowly goes back to E. What do you guys think is haywire. Thanx Frank

I had the same problem on my 67 Newport. I replaced the sending unit and had the instrument panel redone. The fuel guage ended up being fine but I'm glad I took out the instrument panel because the ammeter was at risk of catching fire.
Anyhow, I replaced the sending unit but the guage still doesn't read correctly.
I remember reading comments on c bodies that the repro sending units aren't long enough and they have to be bent to work correctly. So that they touch the top of the tank when full. I still have to get back to it because I wanted to drive it this summer.
Keep that in mind if you replace the sending unit. You can find a better explanation on this forum.

Good luck

 

[SPF Required]

I’d start with checking that you have a good ground at the tank. There should be a metal strap spanning across a little rubber section of hose on the fuel line.

I had a similar issue on my ‘68 300 and this helped a lot (didn’t completely fix my issue). If you do pull the instrument panel, there is a small voltage regulator attached at the back side. I had my panel out for another reason, but I swapped that regulator out with a solid state one since it was accessible. Again, didn’t completely fix my issue, but helped stabilize the fuel gauge. Mine goes to about 3/4 at full and gets to E at about a quarter of a tank.

At this point I essentially use my trip meter has my gas gauge though. Set to 0000 when I fill up, and then refill by the time I hit 120 miles. But I usually just top it off at the end of a drive and reset to 0000.

Hope this helps.

 

[mr gtx]

they have to be bent to work correctly

yes i had to bend the arm down with mine.