My gasgauge shows I have a 1/4 tank, yet the car stops. I can put one gallon of gas in and it runs. Is it a gauge problem, a fuel pump problem or something else?

Is this a flex fuel vehicle. If so, call the dealership and ask the parts dept. if there is a gauge module (perhaps behind the instrument cluster). This may be the culprit and needs to be replaced.

If he told you the fuel pump would correct the fuel guage, take the car back and make them fix it under warranty. I have been in the auto repair business for 21 years and if I mis-diagnose a car, I have to fix it for free to keep the customer happy.

Your problem is in the sending unit itself or the float arm. The fuel pump mounts in the sending unit lines.

Bad fuel sending unit.

I think that the fuel sending unit in the tank is broken or the wire from the unit is unhooked.to keep from running out of fuel. fill up the car and use the trip oddometer to calculate how many miles you can travel. that car has 12 to 15 gallon tank and should get 20 to 25 miles per galloni would think that start putting gas in about 250 to 300 miles. then reset trip odometer

No, but if you put fuel and the gauge shows empty, then you have a loose connector near the gas tank. If car doesnt start, then it is for sure that the connector of the fuel pump is loose. Reconnect the fuel pump and you are gonna be fine.

If the fuel gauge drops off when you are driving then its a sending unit problem that means you have to drop the tank and replace the float and sending unit. This is a common problem for alot of cars because of cheap gas. If you have to drop the tank check the fuel pump canster for dirt because of cheap gas. Replace the fuel pump strainer and fuel pump filter. If the car or truck has about 100,000 miles you might want to change the fuel pump at that time also just to cover your back. If you take it to a shop they will charge you at least $900 to start. But if you do it yourself it will cost you about $200 dollars maybe alittle more.

The Pump and Filter are Absolutely the Problem! Replace them Both. Small price to pay for Security and Cheaper than a New Jeep.

The fuel pump which is in the fuel tank is lubricated by the fuel it pumps, when you run low on fuel (below 1/4 tank) the pump will overheat, and if you run out many times they will seize up, bottom line the fuel pump must be replaced.

I had a similar problem only I was lucky enough that my gas gauge started working after it got lower than a 1/2 tank. It ended up being the float inside the tank. I ended up paying around $90 for the fuel float and it started reading the gas level correctly. But after 2 weeks and some severe cold weather, my engine wouldn't recieve any gas, ended up being the fuel pump. In buying the new fuel pump, along came a new float attached. So if your planning on replacing the float, go ahead and replace the whole pump, it will save you time, money, and hassle after its all over with.