Mazda 3 Service Manual: Thermostat Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING:
-
Never remove the cooling system cap or loosen the radiator drain plug while the engine is running, or when the engine and radiator are hot. Scalding engine coolant and steam may shoot out and cause serious injury. It may also damage the engine and cooling system.
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Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap. Wrap a thick cloth around it and slowly turn it counterclockwise 2.5 turns. Step back while the pressure escapes.
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When you are sure all the pressure is gone, turn the cap using the cloth, and remove it.
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the plug hole plate..
4. Remove the aerodynamic under cover No.2 and splash shield as a single unit..
5. Drain the engine coolant..
6. Remove the generator drive belt with the A/C drive belt still installed and set it out of the way. (MZR 2.0).
7. Remove the drive belt. (MZR 2.5).
8. Remove the drive belt auto tensioner. (MZR 2.0).
9. Remove the idler pulley. (MZR 2.5).
10. Remove in the order indicated in the table.
11. Install in the reverse order of removal.
12. Refill the engine coolant..
13. Inspect for engine coolant leakage..
|
1 |
Water hose |
|
2 |
Lower radiator hose |
|
3 |
Thermostat component |
|
4 |
Gasket |
Thermostat Inspection [Mzr 2.0, Mzr 2.5]
1. Remove the thermostat..
2. Visually check that the thermostat valve is closed.
3. Place the thermostat in water.
WARNING:
During inspection, the thermostat and water are extremely hot ...
Emissions
...
Other materials:
Vacuum Line Inspection
MZR 2.0, MZR 2.5, MZR 2.3 DISI Turbo
1. Remove the vacuum hose..
2. Verify that air can be blown from the power brake unit side of the vacuum
hose towards the intake manifold side, and that air cannot be blown in the opposite
direction.
If there is any malfunction of the inner che ...
Barometric Pressure (Baro) Sensor Inspection [Mzr 2.0, Mzr 2.5]
Voltage Inspection
NOTE:
Because the BARO sensor is integrated in the PCM, replacing the BARO sensor
includes replacement of the PCM.
1. Connect the M-MDS to the DLC–2.
2. Switch the ignition to ON.
3. Verify that the BARO sensor output voltage (PID: BARO) is within the spe ...
Rear Power Window Regulator Removal/Installation
1. Fully lower the rear door glass.
2. Disconnect the negative battery cable..
3. Remove the rear door trim..
4. Remove the service hole cover.
5. Remove the rear door speaker..
6. Remove the glass guide..
7. Remove the rear power window motor..
8. Remove the rear door glass..
9. ...
