rhythmic vibration at 67mph+

[StealBlueSHO]

Soooo interesting... I had the HR springs installed today and took it for a bit of a test drive to make sure it tracked straight etc... The rythmic vibration is gone... I am confused? They did obviously re-align the car afterwards HOWEVER, it had just HAD an alignment so I am not sure what the deal is... but.. its gone... who knows.

 

[SHOdded]

sure, sure.  You won't admit to having removed the trunk monkey, will ya?

 

[StealBlueSHO]

sure, sure.  You won't admit to having removed the trunk monkey, will ya?

https://www.youtube.com/watch?v=PsmLza7kcRg

 

[ToMang07]

Soooo interesting... I had the HR springs installed today and took it for a bit of a test drive to make sure it tracked straight etc... The rythmic vibration is gone... I am confused? They did obviously re-align the car afterwards HOWEVER, it had just HAD an alignment so I am not sure what the deal is... but.. its gone... who knows.

Good news!

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[jman]

Soooo interesting... I had the HR springs installed today and took it for a bit of a test drive to make sure it tracked straight etc... The rythmic vibration is gone... I am confused? They did obviously re-align the car afterwards HOWEVER, it had just HAD an alignment so I am not sure what the deal is... but.. its gone... who knows.

I suspect your issue is on the CV axle. Now that your car is lowered, the axle is now working on a different angle. It is possible that there is a minor imperfection in the CV joint.
I battled Nissan for 18 months with my Pathfinder for a similar vibration that only occurred at 110 km/hr (68 miles/hr). After multiple visits, they replaced the drive shaft which finally fixed the problem.

 

[StealBlueSHO]

Soooo interesting... I had the HR springs installed today and took it for a bit of a test drive to make sure it tracked straight etc... The rythmic vibration is gone... I am confused? They did obviously re-align the car afterwards HOWEVER, it had just HAD an alignment so I am not sure what the deal is... but.. its gone... who knows.

I suspect your issue is on the CV axle. Now that your car is lowered, the axle is now working on a different angle. It is possible that there is a minor imperfection in the CV joint.
I battled Nissan for 18 months with my Pathfinder for a similar vibration that only occurred at 110 km/hr (68 miles/hr). After multiple visits, they replaced the drive shaft which finally fixed the problem.

Good thought! They claimed to have checked them the first time I took it in.. but at this point I don’t trust that dealer.


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[shoNoff]

Have you ever tried slipping the car into neutral when the vibration is happening? That way you would be able to tell if it’s engine related or speed related. If the vibration continues usually it’s speed related meaning driveshaft, axle, wheel etc. if it subsides usually it’s engine related meaning possible motor mount. Now this isn’t always true but I’ve seen it true more often then not.

 

[StealBlueSHO]

Have you ever tried slipping the car into neutral when the vibration is happening? That way you would be able to tell if it’s engine related or speed related. If the vibration continues usually it’s speed related meaning driveshaft, axle, wheel etc. if it subsides usually it’s engine related meaning possible motor mount. Now this isn’t always true but I’ve seen it true more often then not.

Yup! I did this when I first noticed it. No change...


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[shoNoff]

Have you ever tried slipping the car into neutral when the vibration is happening? That way you would be able to tell if it’s engine related or speed related. If the vibration continues usually it’s speed related meaning driveshaft, axle, wheel etc. if it subsides usually it’s engine related meaning possible motor mount. Now this isn’t always true but I’ve seen it true more often then not.

Yup! I did this when I first noticed it. No change...


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I have a similar one in my car I’ve always suspected was the tires. I’ve had the dealer balance them twice under cpo. Mine is around 73ish though. I’m still chasing it. 

 

[ticoscen]

carrier bearing on the propeller shaft is dry and causing vibration on the shaft.