Skip the auto shop - Our mechanics make house calls

Q: Gas gauge stuck

asked by on

The gas gauge is stuck on one reading.

This is a common issue in GM vehicles. The instrument cluster in GM vehicles uses stepper motors to run the gauges. These motors fail often and make the gauges work erratically and give bad readings. The instrument cluster will need to be reconditioned for proper operation. The other part to the gas gauge is the sending unit. This is part of the fuel pump module. If the sending unit fails the reading sent to the cluster will be incorrect. Replacement of the fuel pump module is necessary for repair in this case. A mechanic such as one from YourMechanic can help you determine which of these two is at fault and suggest a repair.

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: Reduced engine power 2004 Chevrolet Tahoe 5.7L

Hello - the reduced power mode your truck drops into is electrical in nature, and most often a problem with bad ground wire connections between the engine and chassis, and the chassis and battery. This is a wide-spread issue with...

Q: Differential makes a whining noise when ever the car is moving (accelerate or decelerate)

You should have the vehicle road tested by a mechanic like one from YourMechanic to see if the noise is inside the differential or in one of the axle hub bearings. The vehicle may have to be run on a...

Q: Vibrating and smoking and oil dumped under car

Hi there. Typically, the engine vibration and shaking is a symptom of a reduction of oil. It's possible that either an oil line or oiling component has broken, which creates a lack of lubrication and tends to cause serious engine...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...