Mazda 3 manuals

Mazda 3 Service Manual: Compression Inspection [Skyactiv G 2.0]

Mazda 3 Service Manual / Engine / General / Compression Inspection [Skyactiv G 2.0]

WARNING:

1. Verify that the battery is fully charged..

2. Warm up the engine to the normal operating temperature.

3. Perform “Fuel Line Safety Procedures”..

4. Remove the following parts.

a. Plug hole plate..

b. Ignition coil/ion sensors..

c. Spark plugs..

d. Fuel pump relay

e. Fuel injector relay

5. Measure the compression pressure using the following procedure.

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


b. Fully depress the accelerator pedal.

c. Crank the engine and measure the compression pressure.

NOTE:

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 140 kPa {1.43 kgf/cm2, 20.3 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.

f. If the measured value is high, it is possible that there is an error in the electric variable valve timing system.

6. Remove the compression gauge.

7. Install the following parts.

a. Fuel injector relay

b. Fuel pump relay

c. Spark plugs..

d. Ignition coil/ion sensors..

e. Plug hole plate..

Compression Inspection [Mzr 2.3 Disi Turbo]
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 ...

Electric Variable Valve Timing Actuator Inspection [Skyactiv G 2.0]
WARNING: A hot engine can cause severe burns. Turn off the engine and wait until it is cool before servicing. CAUTION: Do not disassemble the electric variable valve timing ac ...

Other materials:

Child Restraint Seat Anchor Removal/Installation
4SD 1. Remove the cover. 2. Remove the bolt and child-restraint seat anchor. 3. Install in the reverse order of removal. 5HB 1. Remove the trunk end trim.. 2. Remove the bolt and child-restraint seat anchor. 3. Install in the reverse order of removal. ...

Daytime Running Lights
Some countries require moving vehicles to have their lights on (daytime running lights) during the daytime. Daytime running lights turn on automatically when the ignition is switched ON. They turn off when the parking brake is operated or the shift lever is shifted to the P position (aut ...

Parameter Setting Procedure When Tire Size Is Changed
CAUTION: If the wheel and tire sizes are changed, a discrepancy with the speedometer needle whereby it exceeds the allowable range could result in a malfunction. If the wheel and tire sizes are changed, perform the following procedure to change the tire size parameter setting. ...

© 2016-2025 Copyright www.mazda3tech.com