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Home >> Pontiac >> 2003 >> Aztek AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 136 (Engine Controls - Removal & Installation) >> Emission Systems & Sub-Systems >> EVAP System Cleaning >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2003 Pontiac Grand Am and 2003 Oldsmobile Alero. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition switch to OFF position.
  2. Remove the EVAP canister purge solenoid. See EVAP CANISTER PURGE SOLENOID  .
  3. Lightly tap the EVAP canister purge solenoid 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 solenoid. Continue with the cleaning procedure.
    • If carbon particles are found during the inspection procedure, 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. Return to the diagnostic procedure that sent you here.
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