Hummer H2. Manual — part 1464
Removal Procedure
Fig. 136: Vent Pipe & EVAP Canister Vent Valve Electrical Connector
Courtesy of GENERAL MOTORS CORP.
1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Disconnect the vent pipe from the evaporative emission (EVAP) canister vent valve.
3. Disconnect the EVAP canister vent valve electrical connector.
4. Detach the EVAP canister vent valve from the EVAP canister vent valve bracket.
Installation Procedure
2004 Hummer H2
2004 ENGINE PERFORMANCE Engine Controls (Introduction) - 4.8L, 5.3L, and 6.0L - Hummer H2
Fig. 137: Vent Pipe & EVAP Canister Vent Valve Electrical Connector
Courtesy of GENERAL MOTORS CORP.
1. Install the EVAP canister vent valve to the EVAP canister vent valve bracket.
2. Connect the EVAP canister vent valve electrical connector.
3. Connect the vent pipe to the EVAP canister vent valve.
4. Lower the vehicle.
EVAPORATIVE EMISSION (EVAP) SYSTEM HOSES/PIPES REPLACEMENT (ENGINE
COMPARTMENT EVAP PIPE)
Removal Procedure
IMPORTANT: When replacing the evaporative emission (EVAP) pipe, always replace the pipe
2004 Hummer H2
2004 ENGINE PERFORMANCE Engine Controls (Introduction) - 4.8L, 5.3L, and 6.0L - Hummer H2
Fig. 138: Top View Of Engine
Courtesy of GENERAL MOTORS CORP.
1. Clean the pipe connections and the surrounding areas before disconnecting in order to avoid possible
contamination of the EVAP system.
2. Disconnect the engine compartment EVAP pipe (2) at the EVAP canister purge solenoid (1).
3. Disconnect the engine compartment EVAP pipe (3) at the chassis EVAP pipe.
4. Remove the EVAP pipe from the engine.
5. Cap the EVAP canister purge solenoid and the chassis EVAP pipe in order to prevent possible EVAP
system contamination.
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.
2004 Hummer H2
2004 ENGINE PERFORMANCE Engine Controls (Introduction) - 4.8L, 5.3L, and 6.0L - Hummer H2
Installation Procedure
Fig. 139: Top View Of Engine
Courtesy of GENERAL MOTORS CORP.
1. Remove the caps from the EVAP canister purge solenoid and the chassis EVAP pipe.
2. Install the EVAP pipe on the engine.
3. Connect the engine compartment EVAP pipe (3) to the chassis EVAP pipe.
4. Connect the engine compartment EVAP pipe (2) to the EVAP canister purge solenoid (1).
EVAPORATIVE EMISSION (EVAP) SYSTEM HOSES/PIPES REPLACEMENT (CHASSIS EVAP
PIPE)
Removal Procedure
2004 Hummer H2
2004 ENGINE PERFORMANCE Engine Controls (Introduction) - 4.8L, 5.3L, and 6.0L - Hummer H2
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