Question about 1988 Dodge B250

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My gas gauge don't work. how do you fix that problem?

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Hi, 1st , of course, check for a blown fuse for your instrument panel.
If your gas gauge is reading empty then it could be that the float in the gas tank has a leak and doesn't float anymore. It has sunk. This will cause a working gauge to show empty all of the time. The float that goes into the gas tank is about 1.5 inches long by about an inch wide. It should be a hollow brass cylinder.
this cylinder attaches to a swinging arm that when it moves in the tank, it shows a different resistance depending on where the float is. In other words the height of the float connected to the arm shows the different reading. Note: if you are going to replace the float, or the fuel tank sending unit, make sure the gasoline tank is as empty as possible.
Photo below of what a float looks like (this is probably not the exact one). You may only be able to purchase a complete "fuel sending unit", which includes the float. Probably the best way to get one is from a junk yard.

my gas gauge don't work.  how do you fix that - markfreedman_7.jpg
Hope this helps,
Happy New Year,
Mark

Posted on Jan 02, 2011

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