TrailBlazer 4WD L6-4.2L VIN S (2002)
3. Install the HVAC module-auxiliary case sump (2).
NOTE: Refer to Fastener Notice in Service Precautions.
4. Install the screws to the HVAC module-auxiliary case sump.
Tighten
Tighten the screws to 2 N.m (18 lb in).
5. Install the blower motor control processor-auxiliary.
6. Install the backing plate (1) to the evaporator core-auxiliary.
7. Install the evaporator block-auxiliary.
8. Install the inverted torx studs to the evaporator block-auxiliary.
Tighten
Tighten the torx studs to 2 N.m (18 lb in).
9. Install the heater core-auxiliary.
10. Leak test the fittings of the component using the J 39400-A.