ECT Sensor Replacement

WARNING: This page is about a different car, the 2006 Acura MDX, 2005 Acura MDX, 2004 Acura MDX, and 2003 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.

Drain the engine coolant (see COOLANT REPLACEMENT ).
Remove the intake manifold (see REMOVAL ).
Disconnect the ECT sensor 2P connector (A).

Fig 1: Disconnecting ECT Sensor 2P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove the ECT sensor (B).
Install the sensor 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.