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:
Radar Sensors (Rear)
The radar sensors (rear) for the rear vehicle monitoring system are equipped
inside the rear
bumper, one each on the left and right sides.
Sedan
Hatchback
The surface area of the rear bumper near the radar sensors (rear) should
always be clean so
that the rear vehicle monitoring sys ...
Camshaft Position (CMP) Sensor Inspection [Mzr 2.0, Mzr 2.5]
Visual Inspection
CAUTION:
When replacing the CMP sensor, make sure there is no foreign material on
it such as metal shavings. If it is installed with foreign material, the sensor
output signal will malfunction resulting from fluctuation in magnetic flux and
cause a deterioration i ...
Wiper Blades
CAUTION
Hot waxes applied by automatic car
washers have been known to aff ect the
wiper's ability to clean windows.
To prevent damage to the wiper blades,
do not use gasoline, kerosene, paint
thinner, or other solvents on or near
them.
When the wiper lever is i ...
