Fuel guage problem
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Fuel guage problem
Hello
I have a F150 1976 modell
My original fuel gauge is always showing above full tank.
I put a new sending unit in the tank last year before the winter and it worked fine.
But now the fuel gauge shows full tank when it is not.
I have pulled the sending unit out of the tank and its seems good.
Can it be the instrument cluster volt regulator thats broken ?
Hope it is anyone out there who has got the same problem that can help me
I have a F150 1976 modell
My original fuel gauge is always showing above full tank.
I put a new sending unit in the tank last year before the winter and it worked fine.
But now the fuel gauge shows full tank when it is not.
I have pulled the sending unit out of the tank and its seems good.
Can it be the instrument cluster volt regulator thats broken ?
Hope it is anyone out there who has got the same problem that can help me
Cargo Master
Joined: Jul 2005
Posts: 2,309
Likes: 364
From: Kansas
if you manually raise and lower the float with the sender out of the tank does the gauge move up and down?
what happens to the gauge when you disconnect the wire at the sender?
my first guess is that the wire running from the tank up to the gauge cluster is shorted to ground someplace...that would cause the gauge to peg...
what happens to the gauge when you disconnect the wire at the sender?
my first guess is that the wire running from the tank up to the gauge cluster is shorted to ground someplace...that would cause the gauge to peg...
Thread Starter
|
New User
Joined: Jul 2020
Posts: 24
Likes: 0
if you manually raise and lower the float with the sender out of the tank does the gauge move up and down?
what happens to the gauge when you disconnect the wire at the sender?
my first guess is that the wire running from the tank up to the gauge cluster is shorted to ground someplace...that would cause the gauge to peg...
what happens to the gauge when you disconnect the wire at the sender?
my first guess is that the wire running from the tank up to the gauge cluster is shorted to ground someplace...that would cause the gauge to peg...
When i regulate the sender to the bottom the gauge shows half tank.
When i disconnect the wire it shows empty tank.
I have looked at the wire but it is a jungle....
Do you know the wire diagram from the sender to gauge ?
I have looked online and there is diagrams but i am retard when it comes to wiring...
Cargo Master
Joined: Jul 2005
Posts: 2,309
Likes: 364
From: Kansas
if you disconnect the wire and the gauge drops, your wiring is not shorted between the gauge and sender connector. I would measure the resistance of the sender...it should be around 10 ohms with the float in "full" position and around 70 ohms in "empty" position. FYI, if you ground the wire going up to the gauge, the gauge should show Full...
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tdp1968
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Jul 5, 2005 05:41 PM
