K 3500 Truck 4WD V8-454 7.4L VIN N TBI (1995)
Thermostat: Service and Repair
1. Drain cooling system until radiator coolant level is below thermostat.
2. Remove thermostat housing bolts and/or studs, then the thermostat housing and thermostat.
3. Thoroughly clean gasket surfaces of thermostat housing and intake manifold.
4. Reverse procedure to install, noting the following:
a. Torque bolts to 27 ft. lbs.
