fuel gauge issue

[88beast]

ok swapped out my fuel gauge that didnt work on front tank but moved to a spot on the rear tank
and then the other gauge the oil pressure is a bit screwy and the fuel gauge is stuck same spot both tanks
im thinking the first gauge is good and the pickup on front tank may be bad
any other opinions?

 

[FORDMAN41291]

since the guage is electric you might want to make sure your getting a good ground. also make sure that your baffles/slosh wall are intact in ur fuel tanks. also make sure that the pick-up assembly is still in decent shape. AND LAST BUT NOT LEAST! make sure your float blags dont have holes in em.

 

[jim x 3]

88B: If you suspect a bad fuel sender you can test as follows:

1. Set fuel selector to tank/sender to be tested

2. Remove sender electrical connector at top of fuel tank. With key on, engine off, the fuel gauge should move to right of F

3. Ground the 2 wires in the sender connector (1 is already a ground, the other goes thru the fuel selector to the gauge). With key on engine off, the fuel gauge should move to left of E.

If 2 and 3 test OK, you gauge and wiring thru the fuel selector to the tank are all good - problem is in the tank with the sender. Otherwise, trouble is in the instrument panel or wiring between panel and tank.

Good luck.

Regards,

 

[iverger]

Just a little something I found a few weeks ago. I was trying to figure out why my volt gauge was always stuck at the same spot (~9 volts). My charging system tested out fine and the wiring all the way to the gauge tested out fine.

The issue turned out to be the little black hat the sits over the center of the gauge. It has a **** on the back that I think serves 2 purposes. 1) to keep the needle from going to far in either direction and 2) to hold the hat onto the needle itself. I had popped the hat off for some reason before I bench tested and noticed that the gauge worked fine. Put it back on and it was stuck in the same place. So I clipped the end of the **** off enough to allow the hat to still seat properly into the needle and voila, my volt gauge works perfectly again.

I'm with Fordman and JJJ in that your old gauge is probably fine and it is a sending unit issue, but I'm just throwing it out there.

Bob

 

[88beast]

ok thats what i was thinking too i dont got time to fix it now but wanted ideas for when i do in a week or so
to unplug this clip must the tank come down?