Question about 1999 Buick Regal

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How do you get to the fuel guage sending unit

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Unfortunatly you have to drop your gas tank. The fuel pump and sending unit are both in the gas tank. You will have to release the pressure in your fuel system, disconnect the neg terminal on the batt, then drain and drop your tank.

Posted on Dec 11, 2009

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The fuel guage sending unit and fuel pump is combine unit.'

Fuel has to be drain first.

Fuel tank has to drop from under the car,


It's a good time to change the gas filler neck now because this is a major failure point for the new emission vapor leak test.


Please rate my answer if it's useful to you.'


Thanks

MUSTGO

Posted on Dec 11, 2009

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98 gmc jimmy fuel guage not working


No issues with the fuel guage that I know of , but you can follow the basic troubleshooting guidelines. Starting with the wiring disconnect at the fuel tank for a bad connector or bad connection. Only other connection would be up to the instrument cluster in the vehicle. Only replaceable items would be the guage or the sending unit in the fuel tank. You can disconnect the return line circuit or connector at the at the gas tank and jump a wire to the ground the that feeds the gauge and see if the guage moves, but don't and i repeat don't hold to long because the guage will go over hard over and could damage the guage. If the guage moved and I would suspect a bad float on the sending unit or a bad sending unit, either case the fuel pump assy would have to come out for repairs.

Jul 02, 2014 | 1997 GMC Jimmy

1 Answer

Honda accord 95 gas gauge not working


Hi, The Sending UnitThe sending unit is located in the fuel tank of the car. It consists of a float, usually made of foam, connected to a thin, metal rod. The end of the rod is mounted to a variable resistor. A resistor is an electrical device that resists the flow of electricity. The more resistance there is, the less current will flow. In a fuel tank, the variable resistor consists of a strip of resistive material connected on one side to the ground. A wiper connected to the gauge slides along this strip of material, conducting the current from the gauge to the resistor. If the wiper is close to the grounded side of the strip, there is less resistive material in the path of the current, so the resistance is small. If the wiper is at the other end of the strip, there is more resistive material in the current's path, so the resistance is large.First of all, the guage needs a 12 volt electrical supply to operate. The entire system extends from the fuse block inside the front passenger compartment, through a resister (which lowers the voltage), on to the float assembly inside the gas tank then on back to the fuel guage itself,

First , test the fuse responsible for the fuel guage. Note: this fuse is usualy responsible for the fuel guage only or several items.

If the fuse checks OK, then a check must be made to troubleshoot the entire length of the system or until the problem is located.

If the fuel tank sending unit is faulty, the fuel guage can read any position, including full or empty. The sending unit can be tested by first checking to see if the unit can be removed from the fuel ttank by either partially or fully lowering the tank.

Prior to removing the sending unit, check to ensure there is voltage at the wires leading into the fuel tank.

With voltage confirmed, remove the unit and check for continuity at each end of the float arms travel .with a multimeter If the unit does not check good, replace the unit. Note: Sometimes after a long time in service the strip of resistive material can wear through and plainly be seen.

If the unit checks good, there could be a bad ground somewhere along the line.

If all else checks good, then the fault most likely is a bad fuel guage. The guage also can be tested by applying varying degrees of voltage (0-12VDC ONLY) to the teminals at the rear of the guage.

If the guage is bad, it must be replaced.

I hope this information has been of assisstance to you,
Randy Atchley



First of all, the guage needs a 12 volt electrical supply to operate. The entire system extends from the fuse block inside the front passenger compartment, through a resister (which lowers the voltage), on to the float assembly inside the gas tank then on back to the fuel guage itself,

First , check test the fuse responsible for the fuel guage. Note: this fuse is usualy responsible for the fuel guage only or several items.

If the fuse checks OK, then a check must be made to troubleshoot the entire length of the system or until the problem is located.

If the fuel tank float sending unit is faulty, the fuel guage can read any position, including full or empty.

If the wiring is all good

Apr 12, 2013 | 1995 Honda Accord

1 Answer

Fuel guage doesn't work


Most common cause of this is a defective fuel level sending unit inside the gas tank. Remove the gas tank and replace the sending unit.

Aug 23, 2012 | 2000 Kia Sportage

1 Answer

I have a 1988 ford f-150 custom with a straight six with a 4 speed manual trans. the fuel gauge and temp gauge is not working but the speedometer and odometer and oil pressure is working what could it be?


could be the guage itself, the sending unit for those guages or the wiring in between. find the sending unit, should be two wires the sending unit actually changes the amount of voltage going to the guage. cross the two wires over at the sending unit, the guage should read all the way in one direction, do this for both guages. if the guage moves to an extreme position when the wires are crossed the guage and wiring are fine and the sending unit is the culprit. if you cant get the guages to move by crosing the wires, suspect the guage itself. find you a freindly garage to help w your repair. hope this is useful

Aug 02, 2011 | 1988 Ford F 150

1 Answer

Fuel gage goes from full to emty all the time. when it first stated it only did it with quater tank or less.


Sounds as if the SENDING UNIT in the tank is faulty. They work by RESISTANCE, so when the contacts on the fuel guage sending unit in the tank get worn, it will send incorrect data. Typically it will say full when the actually IS full, then, when the tank is 3/4 full, it will say EMPTY, and then, as you use more fuel from the tank, the guage will go from what is REALLY in the tank, to empty, at different times.

Only solution is to remove the fuel tank, and replace the sending unit guage assembly.

Jun 11, 2011 | Oldsmobile Aurora Cars & Trucks

1 Answer

Fuel gauge on 1986 e250 doesnt work


CK THE FUEL GUAGE BY GROUNDING SENDING UNIT GUAGE WIRE IF GUAGE GOES TO FULL SUSPECT BAD SENDING UNIT IN TANK ,BUT I HAVE SEEN THESE HAVE BRASS FLOATS AND THEY WILL FILL UP AND SINK TO THE BOTTOM TO INDICATE EMPTY

HOPE THIS HELPS

Aug 08, 2010 | 1986 Ford Econoline

1 Answer

Where is fuel guage grounded on 2004 buick


the fuel guage ground is the level sending unit, not a body ground, voltage is sent to the unit and the grond is the level guage resistor wich send signal back to the guage

Mar 30, 2010 | 2004 Buick LeSabre

1 Answer

Fuel gauge doesn't register correctly


The fuel gauge sending unit is in the fuel tank in a module along with the fuel pump, and float guage. It sends an electronic signal to the fuel guage on your dash. When it becomes worn or the float may even have a leak in it, the unit sends incorrect info to your guage. The solution is to empty your fuel tank, drop it from the vehicle, remove and replace the entire module.

Jul 04, 2009 | 2000 Ford Expedition

1 Answer

Suzuki sidekick fuel gauge working backwards


Sounds like you have a bad fuel gauge sending unit.

Nov 30, 2008 | 1995 Suzuki Sidekick

1 Answer

97 Silhouette Fuel guage not working correctly


drop fuel tank. if guage moves all around its probably the fuel level sensor on fuel pump assembly in the fuel tank. If the guage stay's in one spot its the guage , replace instrument cluster assembly. you can take just the glass off the cluster and move the fuel guage needle and it will work (if stuck) but for how long? The wires to the guage come from the sending unit to the power train control module to the instrument cluster. pray its not in the wiring.

Sep 14, 2008 | 2000 Oldsmobile Silhouette

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