ECT Sensor 1 Replacement

WARNING: This page is about a different car, the 2008 Honda Pilot, 2007 Honda Pilot, and 2006 Honda Pilot. However, it is still accessible from the selected car via links, so may be relevant.

Drain the engine coolant (see COOLANT REPLACEMENT ).
Remove engine cover (see step 1 under IGNITION COIL REMOVAL/INSTALLATION ).
Disconnect the ECT sensor 1 2P connector (A).

Fig 1: ECT Sensor 1 With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove ECT sensor 1 (B).
Install the parts in the reverse order of removal with a new O-ring (C), then refill the radiator with engine coolant (see COOLANT REPLACEMENT ), and bleed air from the cooling system with the heater valve open.