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What year and model Ford are you working on and what is the actual code you have? Example P2342
Thank you. I am not a diesel expert so I will reopen your question to the diesel experts.
Hello, does the fuel level read empty at all times?
The only really possibility left is either a bad wire between the sending unit and the cluster. The other option is the cluster could have failed. I would recommend having a shop performing an on demand test on the instrument cluster. You will probably find a broken wire though between the sending unit and cluster.
Ok if you tested the wires at the cluster then your cluster has failed. If you contact Ford they have an exchange program for clusters. This cluster will have to be programmed to the vehicle to ensure proper operation.
Has it been programmed?
If it has been programmed to the vehicle itself it won't work correctly
I would recommend having them sending you another cluster because it's not working correctly. You have good wiring and sending unit. All you have left in the system in a faulty cluster. The cluster aren't direct plug and play and that can still be the issue. The mileage is programmed in but it doesn't match the vin. If they are able to do that the reman or new cluster is still defective and will need to be swapped again.
Here is the wire diagram. It is wired directly to the cluster. The PCM won't affect it. It could be a pin fit at the cluster. If the pins for the sending unit are wore out even by a paper clip it can cause the issue. If there isn't a pin fit concern it goes back to the cluster.
Correct there is. That is for faulty fuel level sensors which you don't have according to your testing
Hello, were you able to get your cluster working correctly?