Avalanche 2500 4WD V8-8.1L VIN G (2003)
11. Remove the heater/A/C tubes retaining nut (4) from the stud (1) at the frame (6).
12. Remove the auxiliary heater pipes (2) from the clamps (5).
13. Remove the auxiliary heater pipes from the vehicle.
INSTALLATION PROCEDURE
1. Install the auxiliary heater pipes to the vehicle.
2. Install the auxiliary heater pipes (2) to the clamps (5).
3. Install the heater/A/C tubes retaining nut (4) to the stud (1) at the frame (6).
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten
Tighten the nut to 7 N.m (62 lb in).
