GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2003 🢒 Envoy - 2WD 🢒 Engine 🢒 Engine Controls - 4.2L 🢒 Fuel Tank Pressure Sensor Replacement

Removal Procedure
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Disconnect the fuel tank pressure harness connector.
  3. Remove the fuel tank pressure sensor.

Installation Procedure
  1. Install the new fuel tank pressure sensor seal.
  2. Install the fuel tank pressure sensor.
  3. Connect the fuel tank sensor harness connector.
  4. Lower the vehicle.