Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Pontiac >> 2003 >> Aztek AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 135 (Engine Controls - Removal & Installation) >> Emission Systems & Sub-Systems >> EVAP System Cleaning >> Cleaning Procedure

Cleaning Procedure

WARNING: This page is about a different car, the 2003 Pontiac Sunfire and 2003 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and support the vehicle.
  2. Remove the EVAP canister. See EVAP CANISTER .
  3. Turn OFF the main valve on the EVAP Pressure and Purge Station.
  4. Disconnect the hose from the diagnostic station pressure regulator.
  5. Using a section of vacuum hose, connect one end onto the EVAP pressure/purge diagnostic station pressure regulator.
  6. Connect the other end of the vacuum hose to the canister side of the purge pipe.
  7. Turn ON the main nitrogen cylinder valve and continue to discharge nitrogen for 15 seconds.
  8. If the nitrogen does not clear the blockage, replace the purge pipe.
  9. Return the EVAP pressure/purge diagnostic station to the stations original condition.
  10. Install a NEW EVAP canister. See EVAP CANISTER .
  11. Lower the vehicle.
  12. Install a new EVAP canister purge valve. See EVAP CANISTER PURGE VALVE  under RELAYS & SOLENOIDS.
  13. Return to the diagnostic table that sent you here.
scientia non olet · About Mike's Workshop Manuals