Abnormal Noise Or Knocking
WARNING: This page is about a different car, the 1997 Mazda Millenia. However, it is still accessible from the selected car via links, so may be relevant.
- Check engine oil and coolant level.
- Check turbo system (if equipped) for damage and wear.
- Check engine control system for malfunctioning components.
System inspection should include following components:
- Airflow Meter
- Vacuum Routing (For Leaks)
- EGR Valve Position Sensor (If Equipped)
- Knock Sensor (If Equipped)
- Throttle Position Sensor
- Coolant Temperature Sensor
- Coolant Thermoswitch
- Inhibitor Switch (A/T)
- Electronic Controlled Automatic Transmission (ECAT) Unit