Rainier 2WD L6-4.2L VIN S (2005)
Air Injection Hose/Tube: Service and Repair
The content of this article/image reflects the changes identified in TSB
Bulletin No.: 06-06-04-017
Date: March 30, 2006
SERVICE MANUAL UPDATE
Subject:
Revised Secondary Air Injection Pipe Replacement Procedure
Models:
2004-2006 Buick Rainier
2004-2006 Chevrolet TrailBlazer
2004-2006 GMC Envoy
with 4.2L Inline Six Cylinder Engine (VIN S - RPO LL8)
Secondary Air Injection Pipe Replacement (2004-2005 Model Year Vehicles)
Removal Procedure
1.
Raise the vehicle. Refer to Lifting and Jacking the Vehicle
2.
Disconnect both the air inlet and air outlet pipe from the secondary air injection reaction (AIR) pump.
3.
Remove the air inlet and air outlet pipe retaining clip from the fuel rail.
4.
Lower the vehicle.
Important:
It is not necessary to remove the throttle body to remove the intake manifold.
5.
Remove the intake manifold.
6.
Remove the number 6 ignition coil.
7.
Disconnect the AIR hose from the air box.
