Inaccurate fuel gauge problems
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New User
Joined: Jan 2009
Posts: 11
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From: Hannibal, MO
Inaccurate fuel gauge problems
Hello,
My name is nolan. I own a 1977 Ford F250 Ranger. The problem is the fuel gauge is grossly inaccurate. I got stuck on the side of the road because of it. When the fuel gauge shows a 1/4 tank, the fuel tank is bone dry, how would i go about diagnosing and repairing this problem? any help would be appreciated. I know alot of people would just deal with the messed up gauge but i want mine to be right.
My name is nolan. I own a 1977 Ford F250 Ranger. The problem is the fuel gauge is grossly inaccurate. I got stuck on the side of the road because of it. When the fuel gauge shows a 1/4 tank, the fuel tank is bone dry, how would i go about diagnosing and repairing this problem? any help would be appreciated. I know alot of people would just deal with the messed up gauge but i want mine to be right.
Elder User
Joined: Sep 2007
Posts: 881
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From: dallastown pa
adjust your float so it is lower in the tank by bending the arm, the mechanical pivot is limiting how far down the float goes or its hitting a baffle or some thing not allowing it to fully drop down.
Lead Driver
Joined: Mar 2004
Posts: 8,922
Likes: 153
The first thing to do is remove the wire from the sender and ground it to the frame. See if the gage goes to high. If it does then it's ok up to the sender. Then you will have to drop the tank remove the sender and go from there. See if the arm is moving all the way. If it is then take the tin cover off the reostat and inspect the windings & wiper, chances are it's got a dead spot in it.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 785
From: Simi Valley, CA
Hello,
My name is nolan. I own a 1977 Ford F250 Ranger. The problem is the fuel gauge is grossly inaccurate. I got stuck on the side of the road because of it. When the fuel gauge shows a 1/4 tank, the fuel tank is bone dry, how would i go about diagnosing and repairing this problem? any help would be appreciated. I know alot of people would just deal with the messed up gauge but i want mine to be right.
My name is nolan. I own a 1977 Ford F250 Ranger. The problem is the fuel gauge is grossly inaccurate. I got stuck on the side of the road because of it. When the fuel gauge shows a 1/4 tank, the fuel tank is bone dry, how would i go about diagnosing and repairing this problem? any help would be appreciated. I know alot of people would just deal with the messed up gauge but i want mine to be right.
The float is made of two pieces of copper soldered together.
Solder breaks down, gas seeps in, float slowly settles to the bottom of the tank.
The float is the same as: all 1957/79 cars/trucks, and it still available from Ford.
COAZ9202B .. Float / MSRP: $7.41 // FTEpartsguy.com price: $5.34.
Junior User
Joined: Jul 2006
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Freshman User
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Should be 73 ohms for the empty indication on the gauge and 10 ohms full for the full indication.
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