Gas gauge on 99 cavalier is malfunctioning

to check it . wire at the fuel tank gauge unplug it the black and purple wire for gauge. put a variable resistor , fuel gauge is rated 0 to 90 ohms. So variate the resistor and see if fuel gauge move. if it does fuel sender have problem or inside tank wire

One fuse operates all the gages, so no the fuse is not the problem, the problem is that the gas gage sending unit (a variable resistor) that senses the level of fuel in the gas tank is defective and needs to be replaced, this is the most common problem with any fuel gage problem

Because you ran out of gas, the first thing to check is/are your fuel filter(s). Generally, throughout the years, dirt builds up in your gas tank but as long as the tank is reasonably full, the dirt either remains diluted or in the lower-most area of your tank. Running the tank empty probably sucked up the build up of dirt and now it's blocked your filter.

Your fuel gauge sending unit is bad. Common on this model GM cars. The sending unit is in the gas tank and is part of the fuel pump assembly. Sulphur in the gasoline eats away at the contact points in the sending unit which causes it to fluctuate. Unless you are daring, this is NOT a job for a do-it-yourselfer... You may have to drop the gas tank to get at the fuel pump...Some models have an access plate in the back seat/trunk area that you can lift the fuel pump out of.
Good Luck and BE CAREFUL...... gasoline is dangerous...

The fuel sender unit (inside the tank) has malfunctioned i think or there is too much resistance on the wire which is caused by a rusty/corroded connection - Go to a wreckers and try a different one or just get a brand new one but it sounds like the sender unit float gets to a point then jams quite common....

Hi

The most likely cause is that the fuel sender in the tank is faulty or that the wiring to the sender is bad.

Less common causes are a faulty fuel guage or circuit in the instrument panel.

Test the sender as it is the most likely cause and easiest to eliminate.

First inspect all connections that are readily visible to insure that they are secure & free from dirt or corrosion.

Disconnect the fuel tank sender wire at the tank. The guage should continue to show full (ignition on). Ground the wire from the sending unit at the fuel tank to any good grounding point on the car. The gauge should go to "Empty". If it does this is a strong indicator that the sending unit is at fault.

Hope this helps. Please do rate my answer. Thanks

was the gas tank empty or full some times the gauges won't work untill the tank is full or the wire for the gauge was not put on properly

Hi the gas gauge is erractic
you need to replace the fuel level sensor

The fuel pump as a gage sender that monitors the gage in the dash. I would replace the fuel pump .
Very common problem

Good Luck

Hi, this is being caused by a malfunctioning sending unit that is locate inside of the tank and is part of the fuel pump assembly. replacing the sending unit will fix this issue.

Please rate and god bless:)