Fuel Gauge issue - Ford Powerstroke Diesel Forum
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Old 01-19-2013, 05:42 AM
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Fuel Sender Ohms readings

The fuel gauge on my 02' F250 quit working a couple of months back. I am in the process of putting a flatbed on the truck so I decided no time like the present to fix the problem.

Unplugged the send from the tank, tried grounding out from the plug forward, to see if the gauge would move, nope stays at 1/2 tank.

Pull the sending unit out of tank and check ohms on it. My reading showed 15.5ohms empty and 161ohms full. Everything I can find on the web show the ranges to be 22.5ohms empty and 145ohms full. In my thinking, the measured range is not that far deviant from the Ford specs. That tells me the sending unit is working. I am correct?

Next question what now? Is the cluster bad? Is there a fuse on the fuel gauge? Will start looking at wiring going forward from the rear plug tomorrow afternoon when i get back to the shop. Was just looking for some other ideas.

Oh, yeah I also Harpooned my tank, thanks for the idea guys.

Last edited by bushton4; 01-19-2013 at 08:53 AM. Reason: clarity
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