TrailBlazer 4WD L6-4.2L VIN S (2002)
Tighten
Tighten the nuts to 5 N.m (44 lb in).
5. Install the foam insulators to the evaporator core-auxiliary lines (3).
6. Install the foam insulators to the thermal expansion valve-auxiliary (4).
7. Install the evaporator core-auxiliary.
