Monte Carlo V6-3.8L SC VIN 1 (2004)
3. Install a new upper seal to the evaporator core.
4. Install 2 new lower seals to the evaporator core.
5. Install the evaporator core into the HVAC module assembly lower case.
6. From the inside of the upper case, drill the dimples adjacent to the heat stakes using a 5.5 mm (7/32 in) drill bit.
7. Align and attach the upper and lower HVAC module assembly case.
NOTE: Refer to Fastener Notice in Service Precautions.
8. Install the removed screws that secure the HVAC module assembly upper case to the HVAC module assembly lower case to their original
position.
Tighten
