Thermostat Bypass Hose: Service and Repair

Bypass Tube








Removal and Installation
1. Drain the cooling system.
2. Remove the air cleaner assembly.
3. Disconnect the thermostat housing to bypass tube hose and position aside.
4. Remove the 2 thermostat housing bolts and position aside the thermostat housing. Discard the O-ring seal.
^ To install, tighten to 10 Nm (89 inch lbs.).
5. Remove the 4 roll restrictor bracket bolts and the roll restrictor bracket.
^ To install, tighten to 55 Nm (40 ft. lbs.).
6. Disconnect the bypass tube hose and position aside.
7. Disconnect the bypass tube electrical connector.
8. Remove the 2 bolts and the coolant bypass tube
^ Remove and discard the O-ring seal and gasket.
^ To install, tighten to 10 Nm (89 inch lbs.).
9. To install, reverse the removal procedure.

10. NOTE: Lubricate the O-ring seals with clean engine coolant.

Clean the sealing surfaces and install a new gasket and O-ring seals.
11. Fill and bleed the cooling system.