Envoy 2WD V8-5.3L VIN P (2004)
1. Apply coolant to the end of the heater inlet hoses.
2. Install the heater inlet hose to the inlet hose fitting at the engine block.
IMPORTANT:When installing a new heater inlet hose, place the clamps on the hose before installing the hose to the inlet hose fitting at the engine
block.
3. Install the coolant bypass valve (6).
4. Install the nut retaining the coolant bypass valve to the cowl.
NOTE: Refer to Fastener Notice in Service Precautions.
See: Heating and Air Conditioning/Service Precautions/Vehicle Damage Warnings
Tighten
Tighten the nut to .....10 N.m (89 lb in).
5. Install the vacuum hose to the coolant bypass valve.
6. Install the inlet heater hose to the engine block.
7. Position the inlet heater hose clamp at the engine block using J 38185.
8. Connect the heater inlet hose to the heater core.
9. Install the coolant recovery reservoir.
IMPORTANT:Firmly push the quick connect onto the heater core pipe until you hear an audible click.
10. Fill the engine cooling system. Refer to Draining and Filling Cooling System (Body Vin Code 6)Draining and Filling Cooling System (Body Vin
Code 3) in Cooling System.