Where is the sending unit for the gas gauge located on the gas tank and how difficult is it to replace?

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.

This problem is caused by a defective gas gauge sending unit (senses the level of the fuel in the gas tank), the gas gauge sending unit is located inside the gas tank, the gas tank must be removed to replace the gas gauge sending unit.

Sounds like you may have a problem with your fuel level sending unit for your gas gauge, this will be a more difficult task to perform if your the at home mechanic because if the sending unit needs to be replaced your gas tank has to come out of the car, this part is located inside your gas tank, a twin post garage lift would make this job alot more easier especially if you never performed a job like this before....

this problem is caused by a defective gas level sending unit, the sending unit is located inside the gas tank, the gas tank in most cases must removed to replace the gas gage sending unit.

this problem is caused by a defective gas gage sending unit, the sending unit is located inside the gas tank, the gas tank must be removed to replace the sending unit.

this problem is caused by a defective gas gauge sending unit, the sending unit is located inside the gas tank, check in the trucnk for an access plate, look under the trunk carpet area over the tank, if no access is found the fuel tank must be removed to replace the sending unit.

THIS PROBLEM IS CAUSED BY A DEFECTIVE FUEL GAUGE SENDING UNIT, THE SENDING UNIT IS LOCATED INSIDE THE FUEL TANK AND PART OF THE FUEL PUMP MODUAL ASSEMBLY, THE FUEL TANK MUST BE REMOVED TO REPLACE THE SENDING UNIT

this problem is caused by a defective gas gauge sending unit, it is located inside the gas tank, u must remove the gas tank to replace the part

the problem is caused by a defective gas gauge sending unit, this part is located inside the gas tank, you must remove the gas tank to replace it.

it is located in the gas tank.It is called fuel pump module which includes fuel pump,sending unit for gauge and strainer.It can also be replaced separately.You have to lower gas tank to access.