Thermostat Removal/Installation - 2.3L

WARNING: This page is about a different car, the 2005 Mazda B2300. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

The thermostat and thermostat housing are serviced as an assembly.

Drain the cooling system. See ENGINE COOLANT REPLACEMENT - 2.3L .

Fig 1: Disconnecting Coolant And Lower Radiator Hoses
Courtesy of MAZDA MOTORS CORP.
Disconnect the coolant hose and the lower radiator hose.

Fig 2: Removing Thermostat Housing Bolts - With Torque Specifications
Courtesy of MAZDA MOTORS CORP.
Remove the bolts and the thermostat housing.
To install, reverse the removal procedure.