Evaporative Emission Hoses/Pipes Replacement - Canister/Fuel Tank TrailBlazer, Envoy, Rainier
Removal Procedure
Caution: In order to reduce the risk of fire and personal injury observe the
following items:
| • | Replace all nylon fuel pipes that are nicked, scratched or damaged
during installation, do not attempt to repair the sections of the nylon fuel
pipes |
| • | Do not hammer directly on the fuel harness body clips when installing
new fuel pipes. Damage to the nylon pipes may result in a fuel leak. |
| • | Always cover nylon vapor pipes with a wet towel before using a
torch near them. Also, never expose the vehicle to temperatures higher than
115°C (239°F) for more than one hour, or more than 90°C (194°F)
for any extended period. |
| • | Apply a few drops of clean engine oil to the male pipe ends before
connecting fuel pipe fittings. This will ensure proper reconnection and prevent
a possible fuel leak. (During normal operation, the O-rings located in the
female connector will swell and may prevent proper reconnection if not lubricated.) |
Notice: Clean all of the following areas before performing any disconnections
in order to avoid possible contamination in the system:
| • | The fuel pipe connections |
| • | The areas surrounding the connections |
- Remove the fuel tank. Refer to
Fuel Tank Replacement
.
- Release the evaporative emission (EVAP) hose assembly retainers (1) from the fuel tank heat shield.
Important: Before disconnecting or reconnecting EVAP pipes. Refer to
Plastic Collar Quick Connect Fitting Service
.
- Cut and remove the ties (1) securing the EVAP hoses.
- Disconnect the EVAP hose assembly (3) from the fuel tank vent valves and fuel module.
- Remove the EVAP hose assembly from the fuel tank.
- Remove the EVAP canister purge pipe (2) from the fuel tank.
Installation Procedure
- Install the EVAP canister purge pipe (2) to the fuel tank.
- Install the EVAP hose assembly to the fuel tank.
- Connect the EVAP hose assembly (3) to the fuel tank vent valves and fuel module.
- Install new ties (1) securing the EVAP hoses.
- Attach the EVAP hose assembly retainers (1) to the fuel tank heat shield.
- Install the fuel tank. Refer to
Fuel Tank Replacement
.
