Question about Ford F-150
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Posted on Jan 02, 2017
The float that helps detect fuel level is most likely broken. You or a mechanic will have to remove the fuel pump from the gas tank and check and possibly replace the float. Merry Christmas.
Posted on Dec 24, 2008
SOURCE: truck doesnt start
dip your tank with a wire. if quarter tank indeed fuelpump or safety valve not opening in supply under hood. Check connection. Valve is on all modern cars for fire hazard. Check the valve by takening it out and testing it. Could be wire harnes problem also. Or filter blocked.
Posted on Apr 16, 2009
Most likely it's one or BOTH fuel level sender units in the fuel tank (there are two float units, one with the fuel pump). Located under the rear pass seats on the driver's side and another on passenger side (seats need to be moved out of the way to get to them - four 14mm bolts with each seat).
You'll see the 8mm screws holding the units in place.
In this diagram, the sender units are wired in series (one or both may be causing your problem). The sender units are simple potentiometers (rheostats) & their combined resistance tell the microcomputer in the instrument cluster what the fuel level is, then It tells the fuel gauge where to put the needle. Inspect your wiring connectors to these sender units first. These sender units can be ordered/purchased at a Hyudai Parts Department. I don't believe there are any after-market units available - they are a dealer item.
Posted on Jun 14, 2009
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