Removal (B3000 & B4000)

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2003 Mazda Tribute, 2003 Mazda Protege5, 2003 Mazda Protege, 2003 Mazda MX-5 Miata, and 2003 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect negative battery cable.
Partially drain the cooling system.
Disconnect Engine Coolant Temperature (ECT) sensor harness connector.
Remove the ECT sensor. See Fig 1 or Fig 2.
To install, reverse removal procedure. See TORQUE SPECIFICATIONS .

Fig 1: Removing & Installing ECT Sensor - B3000

Courtesy of MAZDA MOTORS CORP.

Fig 2: Removing & Installing ECT Sensor - B4000

Courtesy of MAZDA MOTORS CORP.