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:

Crankshaft Position (CKP) Sensor Removal/Installation [Mzr 2.0, Mzr 2.5]
Removal CAUTION: When foreign material such as an iron chip is on the CKP sensor, it can cause abnormal output from the sensor because of flux turbulence and adversely affect the engine control. Be sure there is no foreign material on the CKP sensor when replacing. Do not a ...

Air Bleeding
CAUTION: If the strainer is removed, impurities may penetrate the power steering system and damage it. To prevent this, always bleed air with the strainer installed. Do not maintain the steering wheel fully turned for 5 s or more. The oil temperature could rise and damage ...

Engine Tune Up [Mzr 2.0, Mzr 2.5]
NOTE: If the accelerator pedal is depressed continuously for a specified time, the engine speed may decrease to the idle speed. This is due to the fuel cut control operation, which prevents overheating, and it does not indicate a malfunction. Engine Tune-up Preparation 1. Verify ...