Question about 1984 Ford F 150

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1984 Ford F150 Fuel gauge reads empty

Fuel gauge always reads empty. Haven't checked anything yet, what are some ways I can test the fuel sending unit and gauge itself? I know removing the dash cover is one way to check the gauge.

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  • Ford Master
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I would bet the sending unit is bad but lets check it, a good test i use is that i have a used sending unit i connect to wiring to test the gauge and wiring, if the gauge moves when i move the testing unit then i know the gauge is good and the wiring to, locte the connector at fuel tank, and unplug it, this will be the one the leads to top of the tank and the connector will be on the side be the frame on drivers side, the way you know you have the right connector will be the truck will not run as this connector has the sending unit and pump wires in it, if the gauge goes to full then you know the wiring is good and the gauge is good, you can jump the two wires and gauge should go to full also. the problem is you must get the right wires for sending unit or you may pop fuse, let me see if i can get you a wiring diagram or just do the full test by unplugging connector.

Okay, your sending unit has a yellow and white wire, thats the sending unit wire, the other is a ground and we wont worry about that. so if you want to see if gauge will go to empty or full just unplug connector and gauge will move to full then if you take a wire and jump the yellow wire with white stripe to a good ground the gauge will go to empty, the thing is your gauge is on empty so sending unit may be grounded out, good day1984 Ford F150 Fuel gauge reads empty - 10_21_2012_4_15_34_pm.gif

Posted on Oct 21, 2012

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SOURCE: 1966 Ford Mustang Gas Guage not working

I had a similar problem. In my 1966 Mustang gas tank, the fuel pick-up was on a "float." My float developed a hole, filled with gasoline, and sank to the bottom of the tank, therefore, the gauge always read empty, but the car ran well. All the other gauges of course worked correctly. The repair was a relatively simple soldering job (after removing the float from the tank), but if that is indeed the problem, ensure all the gasoline is drained from the float before beginning the soldering job.

Posted on Dec 05, 2008

  • 3 Answers

SOURCE: fuel guage quit

the sender unit in the fuel tank has given up the ghost ,replace unit

Posted on Dec 02, 2008

  • 128 Answers

SOURCE: Fuel Gauge not working

The switch that you use to change tanks is probably faulty - the switch supplies power for the sending unit in the tank, and to the transfer switch for the gas lines - use a meter to check it

Posted on Nov 27, 2008

  • 1810 Answers

SOURCE: 1993 F150 front tank gauge reads empty, sending unit bad maybe?

chilton ar harnes make a great bible for cases like theise chapters indago sell em cheep

Posted on Jan 03, 2010

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SOURCE: 1985 ford bronco 2 fuel gauge does not work.

I would change the fuel gages if not part of teh complete instrument cluster.

Posted on Mar 18, 2009

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