Fuel Tank Pressure Sensor Replacement for Chevrolet Monte Carlo 1999

1. Relieve the system fuel pressure. Refer to Fuel Pressure Relief .
2. Raise the vehicle. Go to Lifting and Jacking the Vehicle in general information.
3. Drain fuel tank. Refer to Fuel Tank Draining .
4. Remove the fuel tank. Refer to Fuel Tank Replacement .
5. Disconnect the electrical connector from the fuel tank vapor pressure sensor.
6. Remove the fuel tank vapor pressure sensor (7) from modular fuel sender.

1. Install the new fuel tank vapor pressure sensor (7) to modular fuel sender.
2. Connect the electrical connector to fuel tank vapor pressure sensor.
3. Reinstall the fuel tank. Refer to Fuel Tank Replacement .
4. Lower the vehicle.
5. Refill tank and reinstall fuel fill cap.
6. Reconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in engine electrical.
7. Inspect for fuel leaks.

7.1.	Turn the ignition switch ON for 2 seconds.

7.2.	Turn the ignition switch OFF for 10 seconds.

7.3.	Turn the ignition switch ON.

7.4.	Check for leaks.