Mazda 3 Service Manual: Variable Tumble Shutter Valve Actuator Inspection [Mzr 2.0, Mzr 2.5]
Operation Inspection
1. Remove the air hose..
2. Disconnect the vacuum hose from the variable tumble shutter valve actuator.
3. Connect a vacuum pump to the variable tumble shutter valve actuator.
NOTE:
-
Covered with a hood, the rod of the variable tumble shutter valve actuator cannot be seen from above. Use a mirror from under it to check the operation of the variable tumble shutter valve.
4. Check if the rod operates correctly as stated in the table when a gradual negative pressure is applied to the variable tumble shutter valve actuator.
|
Vacuum kPa {mmHg, inHg} |
Rod movement |
|
Below –2.7 {–20, –0.8} |
No operate |
|
Above –33.4 {–251, –9.86} |
Fully pulled |
-
When it is not possible to confirm it, replace the intake manifold..
-
When the variable tumble shutter valve actuator cannot be activated even though the operation of the rod can be confirmed, check for any incorrect connections or breakage of the vacuum hose.
Variable Swirl Solenoid Valve Inspection [Mzr 2.3 Disi Turbo]
Airflow Inspection
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the variable swirl solenoid valve..
4. Inspect the airflow between the ports under the foll ...
Variable Tumble Solenoid Valve Inspection [Mzr 2.0, Mzr 2.5]
Airflow Inspection
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the variable tumble solenoid valve..
4. Inspect airflow between the ports under the followi ...
Other materials:
Wheel Hub Component Inspection
Wheel Bearing Excessive Play Inspection
1. Remove the brake caliper component and disc plate..
2. Install the magnetic base and dial gauge as shown in the figure and measure
the wheel bearing axial excessive play.
If it exceeds the maximum specification, replace the wheel hub compon ...
Intake Air System Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING:
A hot engine and intake air system can cause severe burns. Turn off the engine
and wait until they are cool before removing the intake air system.
Fuel is very flammable liquid. If fuel spills or leaks from the pressurized
fuel system, it will cause serious injury or d ...
Front Stabilizer Control Link Inspection
1. Remove the front stabilizer control link from the vehicle.. (See FRONT STABILIZER
REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo]
2. Inspect for bending or damage. If there is any malfunction, replace the stabilizer
control link.
3. Rotate the ball joint stud 10 times and shake it side to side ...
