Toyota Alphard | Vellfire Alternator One Way Clutch Pulley is damaged

🚗 Toyota Alphard | Vellfire Alternator One-Way Clutch Pulley Is Damaged

Is your Toyota Alphard or Vellfire making a loud metal "click-click" sound when you start the engine?

This is not an engine problem — it’s most likely a worn or seized alternator one-way clutch pulley, one of the most common failures in the Toyota charging system.

🔍 Common Symptoms of a Failing Alternator Pulley:

✅ Metallic knocking noise when starts the engine
✅ Sound comes from the front of the engine
✅ Noise is more noticeable when idling or stopping
✅ Battery warning light turns on
✅ Drive belt vibrates or squeals

This issue is often misdiagnosed as an engine or mounting fault, but the true cause is usually the internal one-way clutch mechanism inside the alternator pulley that has worn out or locked up.

⚠️ What Can Happen If You Don’t Fix It?

❌ Unstable charging → battery drains quickly
❌ Engine may stall while driving
❌ Belt may snap → damaging water pump, air conditioning, or steering systems
❌ Continuous vibration → leads to long-term damage to engine components

✅ Our Professional Solution:

✔ Replace with Genuine Toyota Alternator Pulley
✔ Inspect alternator unit, drive belt, and tensioner
✔ Calibrate voltage output to ensure charging stability
✔ Restore quiet, smooth engine performance and prevent future breakdowns

🛠️ MD AUTO TOYOTA | LEXUS SPECIALIST
📍 Locations: Selayang & Petaling Jaya
✅ Toyota & Lexus Charging System Experts
📲 WhatsApp: www.wasap.my/60165243231