Q: My husbands gas guage has been messing up?

asked by on May 19, 2017

My husbands gas guage has been messing up? right after he fills up it will still show that its not full when we know it is, and earlier today he was going somewhere, he knew he had over half of a tank of gas but not even 5 minutes later the guage was showing that he had 25 miles till empty, what could be causing this issue?

My car has 200450 miles.
My car has an automatic transmission.

Hello, thank you for writing in. The fuel pump is part of a unit called the fuel module. The module also houses a float that raises and lowers with the level of the fuel. That movement is then translated into an electrical signal and sent to the computer and the gauge. Considering the age and mileage on the vehicle, there is a high possibility that the fuel level sensor has failed. However, you cannot replace just the float, and you will have to replace the entire fuel module. You can also have some electrical testing done in order to determine if the signal coming from the fuel module is giving a bad reading. For more help, contact our service department to schedule an appointment.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Between 50 and 70 mph when I accelerate the car is shaking.... Any ideas whay ????

The things we check first with vibration problems are tire and wheel inspection and undercar components such as tie rod ends, rack and pinion steering, and wheel bearings. It may be as simple as a balancing weight that has come...

Fuel door won't click shut

The latch assembly that springs the door open is faulty internally. These can be removed and a new unit installed. Trim tools should be used to pry the fuel door latch unit out to prevent damage to the paint on...

Sugar in the gas tank

The first thing that has to happen is the fuel tank has to come out of the car and be thoroughly cleaned. The fuel pump, which lives inside the tank will need to be replaced. Your car may have an...

Related articles

How Does Fuel Injection Work?
When When it comes to engine performance, there are few things more important than fuel delivery. All of the air you can forcefully induce into the cylinders will do nothing without an appropriate amount of fuel to burn. As engines...
How Long Does a Fuel Injector Last?
The fuel that resides in your gas tank has to be carried to various spots of the engine to be burned and used...
The Best Used Cars to Buy If You’re a Vet
The The best car for a vet to own largely depends on the type of practice he or she has. Large animal vets are probably going to want something that delivers a fair bit of power, and possibly even towing...