Ranger 4WD V6-3.0L VIN U (1997)
Thermostat: Service and Repair
REMOVAL
1. Drain cooling system.
2. Remove upper radiator hose from water outlet connection.
3. Remove two retaining bolts.
4. Remove water outlet connection and water thermostat as an assembly.
5. Discard gasket. Clean sealing surfaces with gasket scraper. Gouges in aluminum could form leak paths. Use care when scraping thermostat
housing-to-gasket mating surfaces.
INSTALLATION
1. Make sure sealing surfaces are totally free of gasket material.
2. Install water thermostat into thermostat housing as illustrated.
3. Position gasket onto thermostat housing using bolts as holding devices. Install water thermostat and tighten bolts to 20-30 Nm (14-21 ft. lbs.).
4. Install upper radiator hose. Tighten clamp securely.
5. Fill and bleed cooling system with proper amount and mixture.
6. Start engine and check for coolant leaks.