Fuel sending unit

[LittleJoe]

The fuel gauge on my 1986 M1008 pickup reads very radically. I want to replace it but I don't know, Is there a difference between a sending unit for diesel and gasoline?

 

[dyeager535]

Have you verified it is actually the sender, and not the gauge or associated wiring?

If you have not done so already, search for threads regarding fuel gauges and repair/testing.

 

[sweetk30]

comon ground problems. wire at sender or wire at frame point problems. check them first.

 

[PerdidoK5]

A sender is a sender... Short the sender out, it should peg full. If it does, good sender. Then the search is on for a faulty connection or a bad wire.