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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) System Hoses/Pipes Replacement (1500 Series) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
IMPORTANT: Clean the evaporative emission (EVAP) line connections and surroundings area prior to disconnecting the fittings in order to avoid possible EVAP system contamination.
    Fig 1: View Of Fuel Feed Line, EVAP Purge Line & EVAP Vent Lines (1500 Series)
    GM1312079Courtesy of GENERAL MOTORS CORP.
  1. Remove the fuel tank. Refer to Fuel Tank Replacement (Single Tank)  or Fuel Tank Replacement (Single Tank w/5.3L (L59) Engine)  or Fuel Tank Replacement (Dual Tanks - Front)  or Fuel Tank Replacement (Dual Tanks - Rear) .
  2. Remove the EVAP purge line (2) from the retaining clips.
  3. Disconnect and remove the EVAP vent lines (3) from the sending unit and retaining clips. Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
  4. Cap the fuel feed and evaporative emission (EVAP) openings in order to prevent possible fuel/EVAP system contamination.
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