Grand Prix V6-191 3.1L VIN M SFI (1998)
1. Install the heater core side seals (1) from the HVAC lower case.
2. Install the heater core upper seal (2) from the HVAC lower case.
3. Install the heater core center seal (3) from the HVAC case.
4. Install the heater core lower seal (4) from the HVAC case.
