Engine Controls - Trouble Shooting - No Codes: NVH Mazda MPV II

ABNORMAL ENGINE NOISE

1. Check for low oil level.
2. Check for worn engine parts.
3. Check for incorrectly tensioned or damaged drive belts.
4. Check for intake system vacuum leak.
5. Check for loose components.

ENGINE VIBRATION

1. Check for incorrectly tensioned or damaged drive belts.
2. Check for loose engine or transaxle mounts.
3. Check for loose or damaged cooing fan or condenser fan mounts.
4. Check for incorrect tire balance.
5. Check for suspension malfunction.
6. Check for driveline malfunction.