I have a 2003 Impala at a little over 129000 and the gas guage on it basically has stopped working. When I start the car it shoots to the F line and doesn’t leave that spot until I turn the car off and then it drops to the bottom. What all is involved in fixing this type of issue?

The float in the tank might be stuck. Crawl under the rear of the vehicle with a rubber mallet, and give the gas tank a couple of good whacks to see if that gets the gauge working again. Tester

FWIW, my gas gauge reads low (never quite makes ‘F’, has about a half-tank when it first hits ‘E’, then slowly goes a little bit lower). I keep track of mileage since last fill-up just to make sure I don’t get careless (I usually fill when it reaches ‘E’) but I’ve cut it close and observed that the…

@Bertrand , You’ve come to the right place! I’ve done this. Got time for a little story? Usually,what happens on these is that a part of the sender (in the tank) goes bad. The sender is attached to the fuel pump module. It is a part called a “wiper” that has tiny “fingers” of metal that disintegra…

@Bertrand , Did the gauge become erratic for a while or did it suddenly just quit (as you’ve described)? CSA

Gauge just stopped working and stays at full.

Usually when the sender wiper starts disintegrating the gauge goes through an erratic period before it quits altogether. You’ve got me wondering. CSA

This is the last discussion about the erratic behavior of the fuel gauge level unit (Bert has 3 screen names); [image] 2003 Impala Gas Gauge Maintenance/Repairs I have a 2003 Impala with about 122,000 miles on it. On my recent fill up I by accident put in mid grade over …

To determine if it is indeed the sender, remove the panel CSA clued you to. Backprobe the purple wire at fuel pump/sender module. Ground purple wire, if gauge goes to empty you know the sender is bad. The whole fuel module will need to be replaced if that’s the case.

This OP has stated in many of his other threads that putting fuel in vehicle is the limit of his mechanical skills. He is going to have brake work done so he should just have them look at the gauge problem at the same time and see if he wants to spend the money. The other solution is to check fuel …

Basically what I am doing now is everytime I fill up I reset the milage guage and when I get to around 150-170 miles I refill up as that takes it usually a little past half empty. It’s no real issue but am thking of having it looked at when the do the brakes next Friday.

Fixing a gas guage

Maintenance/Repairs

Nevada_545 March 24, 2017, 8:24pm 8

This is the last discussion about the erratic behavior of the fuel gauge level unit (Bert has 3 screen names);

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Fixing a gas guage

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