“Helicopter” sound might be an out of phase U-joint. They drive lines are shipped as an assembly. Somebody may have taken it apart, either accidentally or intentionally. If you don’t mark it first, the chances are better then not that it gets put back together wrong.
New vibration after replacing the guibo with u-joint
Hi Folks,
I pored a bunch of the existing driveshaft threads and didn't see anything that seemed related...
I just had my van at the dealer to do the driveshaft recall. They installed a driveshaft with a u-joint and now we're getting a new vibration, most noticeable off-throttle and between 25-50MPH. It almost sounds like a helicopter is following.
Any ideas? My first thought is that maybe it's an imbalanced driveshaft, but that seems kinda improbable.
I pored a bunch of the existing driveshaft threads and didn't see anything that seemed related...
I just had my van at the dealer to do the driveshaft recall. They installed a driveshaft with a u-joint and now we're getting a new vibration, most noticeable off-throttle and between 25-50MPH. It almost sounds like a helicopter is following.
Any ideas? My first thought is that maybe it's an imbalanced driveshaft, but that seems kinda improbable.
