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I was sitting at 3/8 tank when I filled up this evening. I drove off and noticed that my gauge hadn't moved. This hasn't happened before. It ssslllooowwwlllyyy raised to 1/2 tank after 10-12 miles down the road. Has anyone experienced this? I will not hesitate to take her to the dealer and have it checked out if not self corrected in the AM. Thanks
I know for a fact that when you fill up with the truck running (which I always do) the gauge takes a while to go back to full. The first time it freaked me out. I don't know if you fill it up runningor not but that has been the case with me. Deisel is a realitivly safe fuel because it has to be compressed or heated to ignite, that's for the few people who may believe it safe to shutdown while fueling.
I just got my 2003 F350 6.0L back from the dealer. They replaced the rear main seal and also checked my fuel guage for the same problem that you have stated. The print the dealer gave me from Ford stated and I quote "refueling with the ignition key in accessory mode is more likley to result in a lower than actual fuel guage reading. If the reading is suspected to be inaccurate, disconnect the battery(gas) or batteries (diesel) and and reconnect to reinitialize the fuel level memory to the cluster. No repair is necessary if the fuel guage changes to the coorrect reading." I guess time will tell if this is the right fix for it.
BDU I have a 2003 and my fuel gauge has almost always done the same thing. It goes up to the full reading after a while ,usually 10 to 15 minutes. I haven't asked about it at my dealership yet and haven't been to concerned. I just wish the fuel vent on the tanks were better so I could FILL the tank without waiting so long for the foaming to subside.
Thanks everyone...The gauge raised to the full mark and when I shut down and restarted it went back to normal.....The Twilight Zone. Oh, Takem...you can harpoon your tank to make filling quicker. Search Harpoon.
If you do this, you will need a $20 tubing cutter. This makes cutting the tube a snap. You want to also cut the fuel inlet tube as it extends down into the tank.
The way I did it:
1. Jack the left rear axel up, put a 2 ton jack stand under it.
2. Remove the left rear tire. This makes getting to the hoses a lot easier.
3. Put 2 jacks under the tank, front and year.
4. Remove the 3 screws securing the fill neck to the fender.
5. Loosen the hose clamps at the filler neck and vent tube.
6. Remove the filler neck.
7. Loosen and remove tank retention straps.
8. Slowly lower tank as evenly as possible
9. Unhook the two vapor vent lines (not clamped).
10. Lower the tank until it is on the ground being careful that the fuel lines and sending unit cable are not damaged.
11. With a large strap wrench ( I modified mine by substituting a length of fan belt) remove the large (6” in diameter) retaining nut holding the module containing the fuel pickup and the fuel gage sending unit.
12. Remove and tie this assembly out of the way in a safe place(I tied mine to the drive shaft). Leave the lines hooked up.
13. Carefully slide the tank through the opening at the left rear wheel if you have running boards.
14. Remove all diesel fuel by dipping with a dipper made from a milk carton or bottle. Put into a clean fuel container.
15. With a ratcheting PVC Pipe cutter, reaching inside the tank cut the vent tube within 1” of the top of the tank.
16. Reaching inside the tank, Cut off all but 1" from the vent line.. Remove the scraps.
17. Place the tank under the truck 6” to the left of where the tank goes.
18. Install the fuel pickup and sending unit module. Tighten retaining ring with strap wrench.
19. Place the jacks under the tank.
20. Carefully raise the tank, feeding the lines over the frame, watching the fuel module lines for trouble.
21. At this time connect the vapor vent lines that plug into the tank, front and rear. These have no clamps, just push fit.
22. Jack the tank all the way up in the rear.
23. Install the rear strap.
24. Move the front and move the tank around to suit your purpose make sure both hoses are in position.
25. Jack up tank in front to the top and install front strap.
26. Install hoses to filler neck.
27. Install three small screws in the filler neck.
28. Remove jacks from tank.
29. Jack up the axel, install the tire and remove the Jack stand.
30. Fill the tank with the diesel you removed.