fuel gauge sending unit wire access at tank

[fiddler]

So I climbed under my 1974 C10 to check the wiring for a fuel gauge problem, and I don't see any way to get at the wiring without dropping the tank.  Is there a trick to this or do I need to drop the tank out of the truck?  Thanks in advance for any help.

ricky

[gunrac]

more then likely, it's a float issue

[hatzie]

If you have the 20 gal tank you can move the bed.  Otherwise you have to drop the tank down

[Rattler12]

You can get to the wiring by moving the bed on the 16 also but its not easy.

[big_al273]

there is no such thing as easy access for the top of the sending unit in the tank. The  Easiest way to access it it to pull your fuel filler tube off the tank, siphon as much of the gas as you can out, then drop the tank (have a second person to help lower the tank while you unhook the lines and wires) and finish draining it. after you have addressed your issue(s) a suggestion for making it easier to drop the tank in the future, get yourself 18 too 24 inches of fuel line and wire and extend all the lines and wires from the fuel tank so that if the tank needs to be dropped in the future you will just be able to drop the tank and then disconnect the wires/lines after it is down.

[hatzie]

If the hoses were protected and extended past the inside of the frame, where the spring clamps can be accessed and the hoses pushed off the pipes, that would make it much easier as well.

The sender wire should have an accessible Weatherpack disconnect and the ground should already have a screw or nut & bolt holding it to the frame. 
You could move the ground to the tank brackets and make sure the bracket bolts make solid electrical frame contact.

Then when you put it back in all you have to do is fish out the hoses and wire and put em back where they belong...