For the past 3 weeks, the fuel gauge in my wife's 2004 2500 has been intermittently going out. So I pulled the bed off yesterday, went to auto zone and bought a new sending unit/lift pump for $220. When I got home and installed it, it didn't change a thing. So my question is, could it be the gauge on the cluster itself?


BTW, I have a brand new sending unit/lift pump for sale (Auto Zone wouldn't take it back), I had it in the truck for roughly 10-15 seconds. $190, and that includes shipping inside the U.S.

 

Alrighty then. Maybe it isn't anything to do with the truck. LOL

 

try looking at the large modular plug under the driver side floor board on the exteior of the truck, wiggle the wires. that circut runs through that plug: