Express 3/4 Ton Van V6-4.3L VIN W (1998)
1. Install the thermostat.
2. Install the thermostat housing to the intake manifold.
3. Install the bolts to the housing.
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Tighten the bolts to 25 Nm (18 ft. lbs.).
NOTICE: Refer to Fastener Notice in Service Precautions.
4. Connect the radiator hose to the thermostat housing.
5. Install the coolant recovery reservoir.
6. Install the air cleaner and the duct.
7. Bleed the air from the cooling system.
8. Refill the coolant.
9. Inspect the thermostat housing and the gasket for coolant leaks.
