Evaporative Emission System Hoses/Pipes Replacement Engine Compartment EVAP Pipe
Removal Procedure
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.
- Clean the pipe connections and the surrounding
areas before disconnecting in order to avoid possible contamination of the EVAP
system.
- Disconnect the engine compartment EVAP pipe (2) at the EVAP canister
purge solenoid (1).
- Disconnect the engine compartment EVAP pipe (3) at the chassis
EVAP pipe.
- Remove the EVAP pipe from the engine.
- Cap the EVAP canister purge solenoid and the chassis EVAP pipe in order
to prevent possible EVAP system contamination.
Installation Procedure
- Remove the caps from the EVAP canister
purge solenoid and the chassis EVAP pipe.
- Install the EVAP pipe on the engine.
- Connect the engine compartment EVAP pipe (3) to the chassis EVAP
pipe.
- Connect the engine compartment EVAP pipe (2) to the EVAP canister
purge solenoid (1).