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HOMESERVICE MANUALSCHEVROLET2005CHEVY EXPRESS H1500, VAN PASSENGERREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 1 (ENGINE CONTROL SYSTEM - 4.3L - INTRODUCTION)REPAIR INSTRUCTIONSEVAPORATIVE EMISSION (EVAP) HOSES/PIPES REPLACEMENT - ENGINE/CHASSISREMOVAL PROCEDURE
2005 Chevrolet Chevy Express H1500, Van Passenger

Removal Procedure

2005 Chevrolet Chevy Express H1500, Van PassengerSECTION Removal Procedure
WARNING: This page is about a different variant/trim than selected.
IMPORTANT: When replacing the evaporative emission (EVAP) pipe, always replace the pipe with original equipment or parts that meet the GM specifications for this part. The replacement pipe must have the same type of fittings as the original pipe in order to ensure the integrity of the connection.
  1. Remove the engine cover. Refer to Engine Cover Replacement in Interior Trim.
    2. Fig 1: View Of EVAP Pipe, Fuel Feed/Return Pipes & Engine Compartment Pipes
    GM583167Courtesy of GENERAL MOTORS CORP.
  2. Clean all the EVAP pipe connections and the surrounding areas before disconnecting the pipes in order to avoid possible contamination of the EVAP system.
  3. Disconnect the engine compartment EVAP pipe (1) from the chassis EVAP pipe (2).
  4. Cap the engine compartment EVAP pipe.
    5. CAUTION: Refer to Road Test Caution in Cautions and Notices.
  5. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  6. Remove the EVAP pipe from the bellhousing stud clip.
  7. Remove the EVAP pipe from the transmission bracket clip.
  8. Remove the EVAP pipe from the transfer case bracket clip, AWD drive only.
    9. Fig 2: View Of Rear EVAP Purge Pipe
    GM569626Courtesy of GENERAL MOTORS CORP.
  9. Disconnect the rear EVAP purge pipe (3) from the chassis EVAP purge pipe (2).
  10. Cap the rear EVAP purge pipe (3).
    11. Fig 3: View Of EVAP Pipe & Retaining Clips
    GM304560Courtesy of GENERAL MOTORS CORP.
  11. Note the position of the EVAP pipe for aid in installation.
  12. Remove the EVAP pipe from the retaining clips (1).
  13. Remove the EVAP pipe.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.