TrailBlazer 4WD L6-4.2L VIN S (2002)
1. Install the heater core-auxiliary (2) to the HVAC module-auxiliary.
2. Install the HVAC module pass thru seal-auxiliary.
3. Install the heater core access cover-auxiliary (3) to the HVAC module-auxiliary.
NOTE: Refer to Fastener Notice in Service Precautions.
4. Install the screws to the heater core access cover-auxiliary (3).
Tighten
Tighten the screws to 2 N.m (18 lb in).
5. Install the rear HVAC module-auxiliary. See: Heating and Air Conditioning/Housing Assembly HVAC/Service and Repair/HVAC Module
Assembly Replacement - Auxiliary