V 3500 P/U 4WD V8-350 5.7L VIN K TBI (1988)
Thermostat: Service and Repair
Engine Thermostat
Remove or Disconnect
^
Drain the cooling system until the radiator coolant level is below the thermostat.
^
Remove Thermostat and Housing
Install or Connect
^
Make sure the thermostat housing and water outlet sealing surfaces are clean.
1. Install Thermostat (23) in its housing.
2. Install New gasket (22) into position.
3. Reinstall Water outlet (21).
4. Reinstall Bolts (20).
^
Tighten Bolts (20) to 27n.m (20 ft. lbs.)
^
Fill the cooling system.
^
Start the engine and run with the radiator cap removed until the radiator upper hose becomes hot (thermostat is open).
^
With the engine idling, add coolant to the radiator until the coolant level reaches the bottom of the filler neck.
5. Radiator cap to the radiator, making sure the arrows line up with the overflow tube.