GMC chervolet camaro 1999 Service Manual page 192

HVAC
13. Use the following steps in order to install the
temperature valve case:
13.1. Slide the case upward into position until
the upper clip engages.
13.2. Engage the snap on the left edge of the
temperature valve case to the
distributor case.
14. Install the bolts to the temperature valve
shroud case.
Tighten
Tighten the temperature valve shroud case bolts
to 2.0 N-m (18 lb in).
15. Install the temperature control cable to the
module.
16. install the temperature control cable bolt.
Tighten
Tighten the temperature control cable bolt to
1.9 N-m (17 lb in).
17. Install the heater core. Refer to
Heater Core
Replacement.
18. Recharge the A/C system. Refer to Refrigerant
Recovery and Recharging.
19. Refill the cooling system. Refer to Draining and
Filling Cooling System (3.BL) or Draining and
Filling Cooling System (5. 7L) in Engine Cooling.
Heater Core Replacement
Removal Procedure
1. Drain the engine coolant. Refer to Draining and
Filling Cooling System {3.BL) or Draining and
Filling Cooling System (5. 7L) in Engine Cooling.
2. Remove the 1/P compartment door hinge screws.
3. Remove the 1/P compartment door.
4. Remove the heater core tube clamp bolt.
5. Remove the heater core tube clamp.
HVAC System - Manual 1-101
Notice: Do not apply excessive force on the heater
core pipes during hose removal. Applying excessive
force on the heater core pipes may damage the heater
core pipes.
6. Remove the heater hoses from the heater
core pipes.
7. Remove the heater module screws.
8.
Remove the heater module cover.
9. Remove the heater core clamp bolt.
10. Remove the heater core clamp.
11. Carefully pull the heater core toward you.
Remove the heater core.
Installation Procedure
1. Install the heater core.
2. Install the heater core clamp.
Notice: Refer to Fastener Notice in Cautions and
Notices.
3. Install the heater core clamp bolt.
Tighten
Tighten the heater core clamp bolt to
1.8 N·m (16 lb in).
4. Install the heater module cover.
5. Install the heater module screws.
Tighten
Tighten the heater module screws to
1.8 N·m (16 lb in).
6. Install the heater hose to the heater core pipes.
7. Remove the heater core tube clamp.
8. Remove the heater core tube clamp bolt.
Tighten
Tighten the heater core tube clamp bolt to
2 N-m (18 lb in).
9.
Remove the
1/P
compartment door.
10. Remove the 1/P compartment door hinge screws.
11. Drain the engine coolant. Refer to Draining
and Filling Cooling System {3.BL) or Draining and
Filling Cooling System (5. 7L) in Engine Cooling.