Thanks! I checked the intake boot and didn't need to remove it to see it should be replaced. It appears to be the original and the rubber has visible cracks near the clamp and small cracks appear when I squeeze it elsewhere (like an old tire with age cracks). I can't tell that any of them leak air tho. I'll order a new boot today, replace next week and see if it solves the problem. How did you come up with this solution? Have you experienced this symptom? Thx |