Mazda 3 manuals

Mazda 3 Service Manual: Compression Inspection [Mzr 2.3 Disi Turbo]

Mazda 3 Service Manual / Engine / General / Compression Inspection [Mzr 2.3 Disi Turbo]

WARNING:

1. Verify that the battery is fully charged..

2. Warm up the engine to normal operating temperature.

3. Remove the charge air cooler..

4. Remove the ignition coils..

5. Remove all the spark plugs..

6. Remove the fuel pump relay..

7. Remove the fuel injector relay.

8. Measure the compression pressure using the following procedure.

a. Press a compression gauge into the spark plug hole.


b. Fully depress the accelerator pedal and crank the engine.

c. Note down the maximum gauge reading.

d. Perform Steps (1) to (3) for all cylinders.

e. If the measured value is less than the minimum value, or there is a cylinder whose compression value varies from that of other cylinders by 196.1 kPa {2.000 kgf/cm2, 28.44 psi}

or more, add a small amount of engine oil through the spark plug hole. Then measure the compression pressure and perform the respective operations for the following cases.

9. Install the fuel injector relay.

10. Install the fuel pump relay..

11. Install the spark plugs..

12. Install the ignition coils..

13. Install the charge air cooler..

Compression Inspection [Mzr 2.0, Mzr 2.5]
WARNING: Hot engines and oil can cause severe burns. Be careful not to burn yourself during removal/installation of each component. Fuel vapor is hazardous. It can very easily ignit ...

Compression Inspection [Skyactiv G 2.0]
WARNING: Hot engines and oil can cause severe burns. Be careful not to burn yourself during removal/installation of each component. Fuel vapor is hazardous. It can very easily ignit ...

Other materials:

Mass Air Flow (MAF) Sensor/Intake Air Temperature (Iat) Sensor No.1 Removal/Installation [Skyactiv G 2.0]
CAUTION: Be careful not to hit the sensor element or allow foreign matter to get on it during sensor removal/installation. If the sensor element is hit or foreign matter gets on it, an error may occur in the sensor output signal resulting in deterioration in the engine control. ...

Operating the Radio
Radio ON Press a band selector button ( ) to turn the radio on. Band selection Successively pressing the band selector button ( ) switches the bands as follows: FM1→FM2→AM. The selected mode will be indicated. NOTE If the FM broadcast signal becomes weak, reception auto ...

Map Light Inspection
1. Disconnect the negative battery cable.. 2. Remove the map light.. 3. Verify that the continuity between the map light terminals is as indicated in the table. If not as indicated in the table, inspect the bulb. If there is no malfunction, replace the map light. 4. ...

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