Gas Gage
Posting Guru
Joined: Apr 2005
Posts: 2,246
Likes: 2
From: Hawkeye Country
Sounds like the sending unit in the gas tank is going bad, like Archion said its very common on these older trucks.
You'll need to drop the gas tank if you wish to replace it, its not to hard to do.
You'll need to drop the gas tank if you wish to replace it, its not to hard to do.
Junior User
Joined: Sep 2007
Posts: 88
Likes: 0
Yeah,mine has just about the same problem.I'm pretty sure it's the sending unit.It's sitting at a little over half right now and it's empty as can be I'm pretty sure.The sending unit is right in the tank right?Sorry if it sounds like a dumb question.I sort of just came back from the chevys.So I've seem to of lost some of my knowledge on Fords,but it's coming back slowly but surely.Thanks a lot.
Postmaster
Joined: Feb 2008
Posts: 2,658
Likes: 5
From: Out of here
Yikes! You said the "C" word!
Seriously, the sending unit drops in from the top just like nearly every other. Loosen the filler hose, remove the straps, lower the tank and replace the sender.
No biggie (as long as your tank isn't too rusted where the retaining ring goes).
Now is a good time to check your filler neck too. They are notorious for rusting through also.
Seriously, the sending unit drops in from the top just like nearly every other. Loosen the filler hose, remove the straps, lower the tank and replace the sender.
No biggie (as long as your tank isn't too rusted where the retaining ring goes).
Now is a good time to check your filler neck too. They are notorious for rusting through also.
Hotshot
Joined: Feb 2004
Posts: 11,697
Likes: 3
From: Marengo, Iowa
With it working somewhat, it is possible to be the float has some fuel leaked into it. The float is brass, and tend to pinhole, and when the float gets partially filled with fuel, it gets heavier, and throws the reading off.
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Logistics Pro
Joined: Jan 2007
Posts: 3,838
Likes: 106
From: Martinsburg, WV
The float would be sunken all the time, just like in a carb. The sender on these trucks is pretty much a potentiometer, when the contact fingers or carbon tracks wear down, it will give strange or erratic readings.
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Moderator
Joined: Jan 2001
Posts: 57,014
Likes: 2,751
From: Virginia
Sorry if it sounds like a dumb question.I sort of just came back from the chevys.So I've seem to of lost some of my knowledge on Fords,but it's coming back slowly but surely.