Question about 1994 Ford F150 Styleside Supercab

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What color are the hot wire ground and sending unit wires that come out of the gas tank on a 94 ford 150 300 6cy 2wheel drive, dual tanks, the front tank is the one in question

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6ya6ya
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Posted on Jan 02, 2017

  • 10 Answers

SOURCE: 1987 ford Bronco II fuel gage doesn't work-reads empty all time

I need to know if the other gauges are accurate. There is a voltage regulator mounted on the back side of the dash that can go bad and often does, that will make the other gauges inaccurate also.

Posted on Dec 02, 2008

  • 1 Answer

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

motor1258
  • 6674 Answers

SOURCE: 94 f350 diesel pickup dual

I'd look for a bad or broken ground somewhere, either feeding both tanks, or the gauge itself, but start at the sending units and see if there is a common ground wire coming forward & joining into one.

Posted on Dec 21, 2008

  • 184 Answers

SOURCE: 1990 ford f150 has dual tanks. gas pumps from rear tank to front

See these two threads for more info, I've heard of this happening before, in fact at one time there was a recall from Ford regarding this exact issue - http://www.fordf150.net/forums/viewtopic.php?p=227833 - http://www.fordf150.net/forums/viewtopic.php?p=46861

Posted on Feb 12, 2009

  • 2920 Answers

SOURCE: How do I remmove secondary fuel tank which is leaking?

there should be two straps holding the tank in place,,,,if you remove them the tank should drop down to where you can disconnect the feeder hose and go from there

Posted on Feb 20, 2009

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1 Answer

Where is the anti slosh module in a 1988 mercury grand Marquis ?


Anti slosh module? I've never heard of that. If there is such a thing, it must be on the fuel level sending unit in the tank. It is usually the sending unit at fault when the gas gauge stops working.

Here's how to check if the problem is the sending unit or the gauge in the cluster: you will need a helper to watch the gas gauge needle. Pull the electrical connector apart at the tank, find the gas gauge wire. The power wire for the fuel pump is pink and black, and the ground for it is a black wire, so the fuel sender wire should be a different color. When you figure out which wire is for the gas gauge, turn the key to on, and take a jumper wire and ground the gas gauge wire to the frame. Have a helper watch the gas gauge needle when you ground the wire: the needle should move perceptibly. If it does, the gauge in the cluster is good, and the problem is with the sending unit in the tank. If grounding the wire does not make the needle jump, the problem may be the gauge in the cluster. Be sure that you have made a good contact with ground with the jumper wire.
There is a small match box size voltage regulator on the back of the cluster. This sends low voltage (about 5 volts) through the gas gauge and on to the wire going to the tank. When you ground this wire, it should cause the gauge needle to go either to full or to empty, but you should see the needle move. Remember, key on, then ground the wire. Any movement of the needle means the gas gauge is probably good, and the problem is the sending unit in the tank.

Oct 24, 2014 | 1988 Mercury Grand Marquis

1 Answer

Peugeot 307 HDI fuel gauge on empty flashing


Earth I am assuming is the GROUND for the tank or sending unit. Ground wires are usually black or green. This doesn't mean that it's not another color on your car, but black and green are the usual ground wire colors. Make sure that you have removed any rust that may be around the sending unit keeping it from being properly grounded to the tank. I'm not familiar with Peugeot, but I have seen many other similar problems with other vehicles sending units. If your gas tank is metal, make sure that it is grounded to the vehicles frame. Sometimes tanks depend on the mounting straps to ground the tank. They can rust and lose a good ground. You can also try manually grounding the sending unit to the tank or to the frame to see if that is the issue. If none of this works, it may be that your ground wire is broken somewhere between the sending unit and the dashboard which could be quite difficult to find. Good luck!

Oct 02, 2014 | 2002 Peugeot 307

1 Answer

How do I fix my gas gauge in my 1989 ford crown Victoria ltd?


Nine times out of ten, it is the sending unit in the tank that is the problem. To check, use a sort jumper wire to ground the gas gauge wire to the frame while watching the gauge needle on the dash, with the key in on position.

Find the gas tank electrical connector by the tank. Pull it apart, and on the harness side of the connector, locate the wire going to the sending unit. I don't know what color it is, but the fuel pump wire is a pink wire with black stripe and there is a black wire for the ground. The other wire should be for the dash gauge's sending unit. Have a helper turn the key to on and watch the gas gauge for any perceptible movement while you use the jumper wire, insert one end into the terminal for the gauge's sending unit wire (this is on the harness side of the connector, not the gas tank side), and touch the other end to the car frame-you are grounding it. If the dash gauge is good, the needle should move a lot, usually will move more than half way, one way or the other. So if it does, you know the dash gauge is good, and the problem is in the sending unit.

If it is the sending unit, it is quite a job to drop the tank, pull it out from under the car, then pull the fuel pump and sending unit out. You might be fighting a lot of rust on an '89-get some penetrating oil. And look for the removal procedure in a repair manual. It's not terribly difficult if you are handy with tools...and like to get dirty. Those hoses on the tank have been stuck on there a long time. Good luck.

Sep 15, 2014 | 1989 Ford Crown Victoria

2 Answers

How do i know i have a bad float in dual tanks?


Of readings are inconsistent with known fuel levels, Ground (or connect to a tester light) the sender unit wire and watch if the gauge rises.

May 20, 2014 | 1985 Ford F150

1 Answer

The gas gauge for the front tank on my 1992 F150 is stuck past full


You probably have a ground wire not making contact to ground on the front tank sending unit. OR the sending unit itself inside the tank is faulty. Either way, when a gas guage goes to full all the time (empty or full), this indicates that NO ground is available for the sending unit.

Apr 02, 2013 | 1992 Ford F150 SuperCab

1 Answer

Where is the gas tank ground wire for 1995 ford explorer


Not exactly sure when you say "in gas tank". There are 2 seperate grounds for the fuel pump/sending unit inside the fuel tank. The ground for the fuel pump is located under the left hand (drivers) side of the instrument panel behind the kick panel. The ground for the sending unit is located on the left hand (drivers) side of the engine compartment near the radiator. Sorry I don't have any pictures and I hope this helps....

Nov 15, 2012 | 1995 Ford Explorer 4.0

1 Answer

Can anyone tell me what color wire goes to what port on a rear fuel pump plugfor a ford f350 1993


On most 92-94 models you have a red and yellow wire coming from the inertia switch to the tank select switch if you have dual tanks, then a red wire to one pump and a brown and white to the other pump. Both pumps use orange or black for ground.

Aug 23, 2012 | 1993 Ford F350

1 Answer

1992 f 159 dual tanks fuel guage not working


You will need to remove the wire for the sending unit on the tank and ground it to the frame with your selector switched to the tank you are working on and the key on. If gauge comes up to full then the sending unit is bad and gauge is good. Repeat process on other tank. The fuel tank switching valve on the frame also switches the wiring signal from either tank for the gauge. If no change with first test you will want to check the valve.

Aug 13, 2009 | 1992 Ford F150 SuperCab

1 Answer

94 f350 diesel pickup dual tanks the fuel gauge is clear past full all the time even if you switch tanks


I'd look for a bad or broken ground somewhere, either feeding both tanks, or the gauge itself, but start at the sending units and see if there is a common ground wire coming forward & joining into one.

Dec 20, 2008 | Ford F-350 Cars & Trucks

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