Q: I installed a new fuel sending unit the gas tank is full and it shows empty when u take all gas out it shows full what could it be

asked by on

I installed new fuel sending unit an put full tank of gas in it an it shows empty when you take all the gas out it shows full its one of the sending unit that comes with the wire you have to spice what could be it be thanks

My car has 130000 miles.

It sounds like you put in an incorrect sending unit or it is defective and needs a replacement. The fuel sending unit will vary resistance from low to high resistance controlling the gauge. If the signal from the sending unit is opposite of what it should be then the gauge will work opposite of the way it should. I would recommend replacing the sending unit and make sure the new one works opposite of the one you have now. You may have to get the correct one from the dealer since sometimes the aftermarket ones do not always work. You can connect the sender and check it before installing it back in the tank.

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. I installed a new fuel sending unit the gas tank is full and it shows empty when u take all gas out it shows full what could it be

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: I have a. 2006 chevy equinox. I have bleed the coolant systems but i stil hear water coming from the dashboard

Hi there. One item that is often overlooked is the heater core. The coolant flows from the engine, through the heater core to supply heat for the heating system. It is possible that the heater core is blocked with debris;...

Q: What could I do to fix car after diesel put in

Hello. Thank you for writing in. The amount of damage that was done by the diesel will depend on how long it sat in the system. By pulling the filter and pump, I hope you mean that you changed them....

Q: Q: Car turns over but won't start

Hello. A car with the ignition switch left on typically only drains the battery. This results in a slower crank, which is not fast enough to start the combustion cycle. If you have not already attempted to jump start the...

Related articles

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...
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...