Mazda 3 manuals

Mazda 3 Service Manual: Intake Air System Removal/Installation [Mzr 2.0, Mzr 2.5]

Mazda 3 Service Manual / Engine / Intake / Intake Air System Removal/Installation [Mzr 2.0, Mzr 2.5]

WARNING:

1. Complete the “BEFORE SERVICE PRECAUTION”..

2. Remove the battery cover..

3. Disconnect the negative battery cable..

4. Remove the plug hole plate..

5. Disconnect the wiring harness.

6. Remove in the order indicated in the table.

7. Install in the reverse order of removal.

8. Add the engine coolant to the cooling system filler neck and the coolant reserve tank to replace that during servicing.

9. Inspect the engine coolant level..

10. Inspect for engine coolant leakage..

11. Complete the “AFTER SERVICE PRECAUTION”..

Step 1



1

MAF/IAT sensor

2

Ventilation hose

3

Air cleaner cover

(See Air Cleaner Cover Removal Note.)

4

Resonance chamber

5

Air hose

(See Air Hose Installation Note)

6

Air cleaner element

7

Air cleaner case

8

Fresh-air duct (No.1)

(See Fresh-Air Duct (No.1) Removal Note)

9

Fresh-air duct (No.2)

10

Fresh-air duct (No.3)


Step 2



1

Throttle body

(See Throttle Body Removal Note.)

(See Throttle Body Installation Note.)

2

Vacuum hose

3

Variable intake air solenoid valve

4

Vacuum hose

5

Variable tumble solenoid valve

6

Vacuum hose

7

Quick release connector

(See QUICK RELEASE CONNECTOR (EMISSION SYSTEM) REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5].)

8

Vacuum cap (MZR 2.5)

9

Intake manifold

(See Intake Manifold Removal Note.)


Air Cleaner Cover Removal Note

1. Remove the air cleaner cover and resonance chamber and air hose as single unit.

2. Remove the air cleaner cover.

Fresh-Air Duct (No.1) Removal Note

1. Remove the fresh-air duct (No.1) and fresh-air duct (No.2) as single unit.

2. Remove the fresh-air duct (No.1).

Throttle Body Removal Note

WARNING:

CAUTION:

1. Wrap a clean cloth around the cooling system cap and release the pressure by loosening the cap slowly.

2. Remove the water hose from the throttle body and plug the water hose quickly.

Intake Manifold Removal Note

1. Remove the aerodynamic under cover No.2..

2. Remove all clips for securing wiring harnesses from the intake manifold.

3. Disconnect the vacuum hoses connecting the intake manifold.

4. Remove the fuel distributor and fuel injector a as single unit..

5. Remove the intake manifold.

Throttle Body Installation Note

1. Temporarily tighten the throttle body to the intake manifold.

2. Tighten the installation bolts in the order shown in the figure.


3. Remove the plug from the engine coolant hose and install the water hose to the throttle body quickly.

Air Hose Installation Note

1. Adjust the convex of the throttle body to the recess of the air hose.


Air Intake Actuator Removal/Installation [Manual Air Conditioner]
1. Set the air intake mode to FRESH. 2. Disconnect the negative battery cable.. 3. Remove the following parts: a. Front scuff plate (Passenger-side). b. Front side trim (Passenger-side). c. ...

Intake Air Temperature (Iat) Sensor Inspection [Mzr 2.0, Mzr 2.5]
Resistance Inspection NOTE: Because the IAT sensor is integrated in the MAF sensor, replacing the IAT sensor includes replacement of the MAF/IAT sensor. 1. Remove the battery cover.. ...

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 ...

Radiator Drain Plug Replacement [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. Tu ...

Suspension SST
49 T034 1A0 Coil spring compressor set 49 0180 510B Preload measuring attachment 49 B034 001 Guide 49 B034 002 Guide 49 T028 3A0 Ball joint puller set ...

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