Engine Controls - Trouble Shooting - No Codes: NVH Mazda MX-5 NB рестайлинг

ENGINE NOISE

Squeal, Click, Or Chirp Noise

1. Check for improper engine oil level.
2. Check for improper drive belt tension.

Rattle Noise

1. Check for loose parts.

Hiss Noise

1. Check for vacuum leakage.
2. Check for loose spark plug.
3. Check air leakage from intake-air system.
4. Check for improper VAD control system operation.

Rumble Or Grind Noise

1. Check for improper drive belt tension.

Rap Or Roar Sound Noise

1. Check for exhaust system looseness.

Other Noise

1. Check for camshaft friction gear noise or HLA noise.
2. Check for timing chain noise.

ENGINE VIBRATION

1. Check for loose attaching bolts or worn parts.
2. Check for malfunction of components such as worn parts.