Removal and Installation

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to JACKING & LIFTING .
Drain the cooling system. For additional information, refer to COOLING SYSTEM DRAINING, FILLING AND BLEEDING in this article.
Remove the thermostat housing. For additional information, refer to THERMOSTAT HOUSING - 3.0L (4V) in this article.
Remove the bypass tube-to-thermostat housing hose.
Disconnect the engine coolant temperature (ECT) sensor electrical connector.
Remove the bolt, stud bolt and bypass tube.
- To install, tighten to 10 Nm (89 lb-in).
Remove and inspect the O-ring seals, install new seals if necessary.
To install, reverse the removal procedure.
- Lubricate the O-ring seals with clean engine coolant.
Fill and bleed the cooling system. For additional information, refer to COOLING SYSTEM DRAINING, FILLING AND BLEEDING in this article.