Q: Replaced a fuel module but the fuel gauge still reads empty when I know I have a full tank.

asked by on

Previous owner changed complete fuel maudule it has a faulty fuel needle on dash when I baught it , so I completely changed the fuel maudule, still fuel needle reads empty where as I know I have a half tank

My car has 189790 miles.
My car has an automatic transmission.

This may be related to the fuel sending unit in the fuel tank. Your fuel tank has a float type unit that sits inside of it which monitors the fuel level in the tank and transmits this information to the ECU, which then allows this to be displayed in your fuel gauge in the dash. When the sending unit in the tank is not working properly, this will cause inaccurate readings to be displayed as you have noticed. If you need some assistance with getting this fixed, I would recommend having an expert from YourMechanic come to your home to diagnose and replace your fuel tank sending unit as necessary.

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
  1. Home
  2. Questions
  3. Replaced a fuel module but the fuel gauge still reads empty when I know I have a full tank.

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 husbands gas guage has been messing up?

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...

Q: No fuel presure cranks no start, new pump and filter.

Hello. I would recommend checking your fuel filter. Fuel filters are designed to have a one way flow. If the fuel filter is installed backwards the fuel will not reach the engine. This will cause the fuel pump to run...

Q: Q: Timing off in vehicle.

Greetings! Have a trained technician, like the ones here at YourMechanic, come out and take a look for you. The mechanic will be able to turn the engine over to determine why the car is not starting and confirm proper...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...