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I don't think I have power there. Where could I find 5v on the truck to run a jumper wire to test it?

I'm also assuming the other wire should be the power. If so how much power should be there?

We'll I grounded the signal wire and the gauge slowly moved to full. It moved really slow. Took about 20 seconds to move all the way to full and about the same to empty when I removed ground. Is that normal? If so is it safe to say it's the sender installed wrong? Thanks.

Thanks for the info. I plan on lifting box this weekend. Until then, are there any relays or anything else like that I could check? Just want to plan ahead for this weekend while I tear apart the truck. Thanks.

Does it matter what wire I put 12v to?

We'll I unplugged what I think is the right module. I lost radio and door locks. After 25 mins still no fuel gauge. Where are some other places to look? Is it possible the PCM is the fault? Will try all ideas. Thanks

I will try thanks

When you say leave the module out, do you mean drive with it out or leave key on with it out? And how long?

The shop said they tried testing the new sending unit before reinstalling the tank. They ruled out anything wrong with the fuel tank and installed it back on truck. I will try the module thing. Thanks.

They said they double check that and tested it before they put the tank back on.

They dropped the tank. Is it normal to have gauge stuck way below empty?

I just bought a 2002 dodge 2500 cummins quad cab. The fuel gauge was not working. It was stuck below E with fuel light on. Took it to local shop and they said need new sender. Looked on here and found the correct part number. Thank you. Shop installed and gauge still not working. Shop tested wires and said they are sending signal all the way to the PCM. After that they don't know. I looked on here how to test cluster with the trip button. The gauge moved as it should. I brought truck home and need to know where to look next. Thank you.