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Home >> Chevrolet >> 2004 >> Avalanche 2500 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Control System - 4.8L, 5.3L & 6.0L (Introduction)) >> Repair Instructions >> Evaporative Emission (EVAP) Hoses/Pipes Replacement - Canister Vent (1500 Series - 5.3L (L59) Engine) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
IMPORTANT: Clean all evaporative emission (EVAP) pipe connections and surrounding areas before disconnecting the pipes in order to avoid possible EVAP system contamination.
    Fig 1: View Of EVAP Canister Vent Pipe & Clips
    GM855747Courtesy of GENERAL MOTORS CORP.
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Disconnect the evaporative emission (EVAP) canister vent pipe (5) from the canister.
  3. Remove the EVAP canister vent pipe clip (4) from the canister bracket.
  4. Remove the chassis harness from the EVAP canister vent pipe clip.
  5. Disconnect the EVAP canister vent pipe at the EVAP vent valve.
  6. Remove the EVAP canister vent pipe from the mounting clips (6, 7).
  7. Remove the EVAP canister vent pipe clip (3) from the frame.
  8. Cap the EVAP vent valve and canister in order to prevent possible EVAP system contamination.
  9. Remove the EVAP canister vent pipe.
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