90. Engine Coolant Thermostat Installation

1. Install the thermostat bypass connector.
2. Install the thermostat bypass hose and clamps.
3. Install the thermostat housing and gaskets.

NOTICE: Refer to Fastener Notice in Service Precautions.

4. Install the bolts and stud/nut.
^ Tighten the bolts and the stud/nut to 42 Nm (31 ft. lbs.).
5. Install the Engine Coolant Temperature (ECT) sensor.
6. Install the fuel bleed valve and nut.
^ Tighten the stud/nut and nut to 41 Nm (31 ft. lbs.).





7. Install the seals onto the thermostats.
^ The seals have a split, inner edge, which install over the flange on the thermostats.
^ The seals have a bead on the surface that faces the water outlet.
8. Install the thermostats in the thermostat housing.
9. Install the water outlet.
10. Install the bolts/studs.
^ Tighten the bolts/studs to 47 Nm (35 ft. lbs.).