Lyons238
Member
Subtle Helicopter Noise "Bub blub blub" when releasing clutch - DMF? Mounts?
Hello I just purchased a 2014 Jetta TDI 6 speed manual with 39k miles on it.
I now have noticed a subtle chugging or whooping sound. It’s kind of like a blub blub blub sounds almost like the engine idle is amplified when depressing the clutch and when in gear under load low rpm. But the blub sound doesn’t seem to increase with revs its fairly steady kind of disappears...it’s mostly only noticeable when going slow when I’m in first gear and releasing the clutch or reverse taking off slowly with the clutch depressed. But keep in mind during these times I'm lugging the engine a bit, very low RPM's taking off. I don't like to slip the clutch when taking off so I give it as minimal throttle as I can and just release and accelrate smoothly, but down low it makes the blub blub blub vibration sound, like sotmething is swinging through the air, think of like the sound of a helicopter blade almost....But at the same time I do notice the same sound if I listen very closely when idling or normal driving, its just amplified when releasing the clutch under a very low RPM. It's extremely faint though and you have to be listening for it.
My mind is going towards DMF or maybe a worn dogbone or motor mount? Is the DMF supposed to make a very faint noise, maybe this is normal or at least maybe its just the worn mounts like i said...only 40k miles?? I have a feeling the dealer would try and sweep it under the rug because it is barely noticeable.
Let me know what you think, please.
Thank you!!
Hello I just purchased a 2014 Jetta TDI 6 speed manual with 39k miles on it.
I now have noticed a subtle chugging or whooping sound. It’s kind of like a blub blub blub sounds almost like the engine idle is amplified when depressing the clutch and when in gear under load low rpm. But the blub sound doesn’t seem to increase with revs its fairly steady kind of disappears...it’s mostly only noticeable when going slow when I’m in first gear and releasing the clutch or reverse taking off slowly with the clutch depressed. But keep in mind during these times I'm lugging the engine a bit, very low RPM's taking off. I don't like to slip the clutch when taking off so I give it as minimal throttle as I can and just release and accelrate smoothly, but down low it makes the blub blub blub vibration sound, like sotmething is swinging through the air, think of like the sound of a helicopter blade almost....But at the same time I do notice the same sound if I listen very closely when idling or normal driving, its just amplified when releasing the clutch under a very low RPM. It's extremely faint though and you have to be listening for it.
My mind is going towards DMF or maybe a worn dogbone or motor mount? Is the DMF supposed to make a very faint noise, maybe this is normal or at least maybe its just the worn mounts like i said...only 40k miles?? I have a feeling the dealer would try and sweep it under the rug because it is barely noticeable.
Let me know what you think, please.
Thank you!!