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Home › Pontiac › 2001 › Aztek Base, FWD › Repair and Diagnosis › External Pages › Different car › Section 141 (Engine Control System Testing & Engine Component Testing) › Emission Systems & Subsystems › Evaporative Emission System Cleaning › Cleaning Procedure

Cleaning Procedure

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2002 Saturn SL2, 2002 Saturn SL1, 2002 Saturn SL, 2002 Saturn SC2, and 2002 Saturn SC1. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise the vehicle.
  2. Remove the EVAP canister.
  3. Turn OFF the main valve on the J 41413.
  4. Disconnect the hose from the diagnostic station pressure regulator.
  5. Using a section of vacuum hose, connect one end onto the 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 dislodge the carbon particles, replace the purge pipe.
  9. Return the EVAP pressure/purge diagnostic station to the original condition of the station.
  10. Install a new EVAP canister.
  11. Lower the vehicle.
  12. Install a new EVAP canister purge valve.
  13. Return to the published service procedure.
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