Fuel Gage going crazy
Thread Starter
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Senior User
Joined: Apr 2006
Posts: 156
Likes: 0
From: I-45, Texas
Fuel Gage going crazy
On my way to work this morning, front tank selected, the guage showed 1/2 tank. On the way home this evening I happened to look down and the guage was reading beyond the Full mark. As I started watching it it was moving all over the place between E and F............
Switched to the rear tank and the guage was working properly.
Any suggestions as to some problem areas that might cause this?
Thanks in advance
ra
Switched to the rear tank and the guage was working properly.
Any suggestions as to some problem areas that might cause this?
Thanks in advance
ra
Fleet Mechanic
Joined: Feb 2004
Posts: 1,816
Likes: 3
From: River Valley AR
Possibly a sending unit going bad in the front tank. It could also involve the switching between the front and rear tank. There is a chance that you could switch back and forth a few times and it will clear up. If it doesn't then check for loose or damaged wires, and if your truck is like mine you can just about see the make sure nothing fell down in there and damaged any wires. Last resort would be to drop the tank and check the sending unit. You can also compare the resistance readings on the front tank to the resistance readings on the rear tank and that should put you in the ballpark.
Thread Starter
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Senior User
Joined: Apr 2006
Posts: 156
Likes: 0
From: I-45, Texas
Originally Posted by Flea
This is a common problem on these trucks. I have had two that do it.
Thanks to both of you, but I have a quick question.
When you say "I have had to do that" does that mean you had to replace the sending unit or look for loose wires on top of the tank?
thanks
ra
