BearForceOne
Active member
Relevant info:
2001 02J ALH Jetta sedan
349k miles
New VR6 clutch/SMF conversion
Since I bought my Jetta in late August with 343k miles, any time I've started from a stop the whole car shakes pretty significantly, enough to make me believe it's not normal and acceptable NVH from the factory. No matter how much fuel I give it, how quickly or slowly I let off the clutch, there's always a moment of intense vibrations. There is no issue shifting gears when in motion, just when letting off the clutch while in first from a stop or very low speed.
Initially I believed it to be a bad dual-mass flywheel, which I found was very loose and needed replacement, but was not the cause of the vibrations. Next was a replacement driver's side engine/trans mount, and dogbone mount as both had a lot of miles on them and were notably loose. These improved the feel of the car a little, but the vibration still continues.
I'm running out of guesses as to what could be causing this, and it's really starting to get on my nerves. Perhaps my Google-fu isn't as great as I'd like to think it is, but I've been unable to find any related threads on the forum or posts online with similar symptoms.
Am I grasping at straws that it might be a CV shaft or transmission issue? Or maybe the fuel filter is plugged and the engine is being starved of fuel on launch? There is a notable amount of bubbles in the feed line between the filter and injection pump.
Any help is greatly appreciated, thank you!
2001 02J ALH Jetta sedan
349k miles
New VR6 clutch/SMF conversion
Since I bought my Jetta in late August with 343k miles, any time I've started from a stop the whole car shakes pretty significantly, enough to make me believe it's not normal and acceptable NVH from the factory. No matter how much fuel I give it, how quickly or slowly I let off the clutch, there's always a moment of intense vibrations. There is no issue shifting gears when in motion, just when letting off the clutch while in first from a stop or very low speed.
Initially I believed it to be a bad dual-mass flywheel, which I found was very loose and needed replacement, but was not the cause of the vibrations. Next was a replacement driver's side engine/trans mount, and dogbone mount as both had a lot of miles on them and were notably loose. These improved the feel of the car a little, but the vibration still continues.
I'm running out of guesses as to what could be causing this, and it's really starting to get on my nerves. Perhaps my Google-fu isn't as great as I'd like to think it is, but I've been unable to find any related threads on the forum or posts online with similar symptoms.
Am I grasping at straws that it might be a CV shaft or transmission issue? Or maybe the fuel filter is plugged and the engine is being starved of fuel on launch? There is a notable amount of bubbles in the feed line between the filter and injection pump.
Any help is greatly appreciated, thank you!