Thermostat Bypass Hose: Service and Repair

Bypass Tube - 3.0L (4V)

Material:

Removal and Installation
1. With the vehicle in NEUTRAL, position it on a hoist.
2. Drain the cooling system.
3. Remove the thermostat housing.
4. Remove the bypass tube-to-thermostat housing hose.
5. Disconnect the engine coolant temperature (ECT) sensor electrical connector.
6. Remove the bolt, stud bolt and bypass tube.
^ To install, tighten to 10 Nm (89 lb-in).
7. Remove and inspect the O-ring seals, install new seals if necessary.
8. To install, reverse the removal procedure.
^ Lubricate the O-ring seals with clean engine coolant.
9. Fill and bleed the cooling system.