Skip the auto shop - Our mechanics make house calls

Q: Gas gauge is not working correctly

asked by on

When I'm driving the gas notch shows me where I'm at with gas but when I start driving it goes down but I just put gas in it. What's going on?

If the gauge pointer on the fuel gauge is registering incorrectly, or fluctuating excessively (it can move a little depending on vehicle angle and motion), there could be a problem with the sending unit in the gas tank, the dash gauge itself and/or the interconnecting wiring. All of these components can be tested by a certified professional from YourMechanic during a mobile visit. It is not unusual for the sending unit in the tank to fail and those units are replaceable. But, first the issue has to be accurately diagnosed and you can rely on YourMechanic to do this by inspecting and servicing your car at your home or office.

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: Fuse keeps blowing. 1997 BMW 318i

Hello. It sounds like you may have a short in the brake switch or a short in one of the pig tails. It is also possible that there is a short in the brake light sockets for the brake light...

Q: Check Engine Light is on and transmission problem

Hello, What you are describing sounds like a transmission that may be low on transmission fluid or potentially have some internal component problems such as a faulty solenoid or bad control module. When the transmission is not functioning properly, this...

Q: I have a problem with the temperature gauge - 2002 Buick Rendezvous

Hello. The temperature gauge is going to elevate based on the resistance of the sensor. The first thing to check is the temperature sending unit. The wires or the sensor itself may be corroded or damaged. This would cause extra...

Related articles

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...