Firebird V6-173 2.8L VIN L 2-bbl HP (1983)
Heater Core: Service and Repair
HEATER CORE
Replace
1. Drain cooling system.
2. Remove heater inlet and outlet hoses from heater core.
3. Remove right lower hush panel See: Body and Frame/Interior Moulding / Trim/Trim Panel/Service and Repair.
4. Remove right lower I.P. trim panel. Remove ESC module. (Vin code 7 only)
5. Remove lower right I.P. carrier-to-cowl screw.
6. Remove four (4) heater case cover screws. Upper left screw may be reached with a long socket extension through the I.P. openings exposed by
removal of the lower right I.P. trim panel. Carefully lift the lower right corner of the I.P. to align socket extension.
7. Remove heater case cover.
8. Remove core support plate and baffle screws.
9. Remove heater core, support plate and baffle from case
10. Reverse removal procedure to install.
11. Refill cooling system and check for leaks.
