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

Inspection 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.
NOTE: Use the EVAP Pressure/Purge Diagnostic Station (J 41413) in order to provide a clean, dry, low pressure gas source. Do not substitute any other pressurized gas source. Damage may result to the EVAP system.
  1. Turn OFF the ignition.
  2. Remove the EVAP canister purge valve.
  3. Lightly tap the EVAP canister purge valve on a hard surface.
  4. Inspect for carbon particles exiting either of the vacuum ports.
    • If no carbon particles were detected, but a blockage was detected during a diagnostic procedure. Install the original EVAP canister purge valve and continue with the cleaning procedure.
    • If carbon particles are found during the inspection procedure. Replace the EVAP canister purge valve and continue with the cleaning procedure.
    • If a diagnostic procedure directed you to replace the EVAP canister purge valve and no carbon particles were detected, replace the EVAP canister purge valve and return to diagnostic procedure.
About FixVault