Fuel gauge or sending unit?

[RedLeg0811]

While out at the dunes during NWBR I looked at my fuel gauge and thought dam guess I used more fuel than I thought while on the dunes. Went to fill it up and only 5 gallons to fill. later it was on E and I filled it up with 9-10 gallons and it showed full. Going along maybe 1-3 gallons I notice it lower than it should be. It then got to 1/2 tank reading and dropped to empty.

My thought is that the sending unit has gone bad. What do you all think?

 

[SHX669]

What fuel tank do you have ? { I recently installed a 23 gal aftermarket and had to take A LOT of the bend out of the float arm to get it even close to reading accurate }
Have you checked the ground wires ?

 

[RedLeg0811]

I have the 23 gal NWMP. It has been in there for about 5-6 years and has been pretty accurate. When I saw it initially sitting on E I thought possibly wiring, but now not so sure. I have not had a chance to mess with it because of playing catch up around the house after NWBR.

 

[cs_88]

Are you still using the tank selector switch? Mine has started acting up on me causing similar issues. If I give the switch a little wiggle it'll start reading correctly.

 

[SHX669]

Hadn't thought of that - loose wires - more resistance . Hmm

 

[RedLeg0811]

That is a good idea. I will check that as I didn't think of it.