Mazda 3 Service Manual: Exhaust & Emissions

Valve Clearance Inspection [Mzr 2.0, Mzr 2.5]

1. Remove the battery cover.. 2. Disconnect the negative battery cable.. 3. Remove the plug hole plate.. 4. Disconnect the wiring harness. 5. Remove the ignition coils.. 6. Remove the spark ...

Exhaust System Inspection [Mzr 2.0, Mzr 2.5]

1. Start the engine and inspect each exhaust system component for exhaust gas leakage. If there is leakage, repair or replace the appropriate component.. ...

Other materials:

Check Valve Inspection [Skyactiv G 2.0]
Airflow Inspection 1. Remove the vacuum hose.. 2. Blow air into the vacuum hose using your mouth from the vacuum pump side and verify that the air flows to the intake manifold side, then blow air from the intake manifold side and verify that the air does not flow to the vacuum pump side. ...

Bass Box Inspection
1. Disconnect the negative battery cable.. 2. Disconnect the connector.. 3. Verify the resistance between bass-box terminals. If not within the specification, replace the bass-box. Resistance 0.9—1.1 ohms ...

Recommendations for Shifting (for Vehicles without Gear Shift Indication)
Upshifting For normal acceleration, Mazda recommends these shift points: (U.S.A. and Canada) For cruising, Mazda recommends these shift points: (U.S.A. and Canada) Downshifting When you must slow down in heavy traffic or on a steep upgrade , downshift before the engine starts to ov ...