I was just curious if anyone had any of the information as to what the ohm range rating is on a sending unit for the wagon, or even just the standard unit if anyone has a book that lists that information. Thanks

Even though the wagon uses a different tank and sender, I think the values would be the same. The maintenance manual gives no values, but states that 3 volts to the gauge should read 1/2 tank and 4 volts should read 3/4 tank. Once it is determined that the gauge is correct, it suggests to try the sender at different levels. I used to use 2 flash light batteries in series for 3 volts. Before you go too far with all the testing, make sure the tank is grounded. I find that to be the problem quite often.

Kenneth

Fredricksburg, Texas

I'm pretty sure the sender was working when I first got the car, but having to pull the tank out 3 different times to clean it may have caused the grounding experience that I may be having.

Flathead:

73 ohms empty, 10 ohms full.  I install a jumper wire from the sending unit to a good clean ground, that way it doesn't matter if the tank itself is grounded.

John - "The Hoosier Hurricane"

The O. E. M. fuel guage and temperature guage systems on these vehicles are not resistance units - "ohms" are somewhat meaningless: See my previous post #22138 & the discussion following.  These "King-Seeley" systems operate on an entirely different principle.

I hope that it's helpful.

Thanks,   JLB

55 Ford Crown Victoria Steel Top