Porsche Cayenne Carbon Cleaning Malaysia
Cayenne 3.0L V6 and 4.0L V8 are direct injection — carbon builds on intake valves at 60,000–80,000 km. Walnut blast required: RM 1,200–1,800 (more valves than a 4-cyl). Symptoms: rough idle, hesitation, poor fuel economy.
Porsche Cayenne Carbon Cleaning — Direct Injection
- Direct injection engines bypass intake valves when injecting fuel — carbon accumulates on valve stems
- Cayenne V6 and V8: expect carbon buildup at 60,000–80,000 km
- Walnut blasting is the only effective fix — cost RM 1,200–1,800 (more valves = higher cost)
- Symptoms before cleaning: rough idle, hesitation at low RPM, poor fuel economy