Skip the auto shop - Our mechanics make house calls

Q: Fuel gauge not working right.

asked by on

The fuel gauge isn't working right. Sometimes it's full, and then five minutes later it's empty. Also, the slip and tire pressure lights stay on.

A: Hello. Sound like you are having several di...

Hello. Sound like you are having several different issues. The fuel gauge is powered by a sending unit in the fuel tank. When you put fuel, a float rises with the fuel and depending on where it lands is the voltage it send to the gauge on the cluster. It is possible the sending unit is faulty causing the gauge to read incorrectly, this means the fuel gauge sender will need replacement. The slip light might be a problem with one of the ABS wheel speed sensors. If the sensor is not reading intermittently, the vehicle might think the lack of reading is the tire slipping. This will cause the light to come on and if severe enough, engage the traction control system on the vehicle. The tire pressure light means your tires are not at the right pressure. If you have checked the pressure and it is correct, then the sensors will need to be replaced. It is common for the sensors to fail. To replace them, the tire will need to be partially dismounted from the vehicle.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
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

Q: My Q45 was low on gas it was parked at a very bad angle for about 8 hours would not start.. put some more gas into it.. still woul

Hi There, The angle the vehicle is parked on will have no effect on the fuel supply to the motor as the fuel system is pressurized via the fuel pump. In the event that the fuel pump is not working...

Q: Is my mechanic giving me a good deal?

The prices you have listed sound like very good deals you will find a very hard time finding anywhere else especially if the parts are high quality or near OEM quality. IF you are unsure, you can request quotes from...

Q: Car is slow to turn over

It seems you have three issues. If the engine is cranking slowly, the battery, the starter, the alternator, and the wiring will all need to be checked. The battery is the most likely problem, especially since your Infiniti is more...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...