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RWD - drive line hesitation

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drive line hesitation 900

Dear Mr Pelchat,

My first thought would be broken/loose prop shaft centre bearing rubber support (not the bearing itself). This could present itself from giving off occasional jerking (often went unnoticed) to sudden full blown situation. Happened to me once while driving on highway. At worst it sounded like loose marbles in a tin can from under the car. And the car was still drivable albeit slowly (around 30 to 40 km/h). I was able to drive home and waited next morning to drive the car to my Volvo mechanic. Recommended to also replace the centre bearing at same time.

Second thought could be the rear wheel bearings. Haven't happened to me. Usually the wear would give some rumbling noise before anything happens.

The centre bearing itself would give some early low rumbling noise so this couldn't be it. And the U-joints are very sturdy. I had asked my mechanic to replace the joints during the repair episode above but he refused as he tested the 20+ years joints were still good.

Lastly could it be loose wheel lug nuts?

Still need to go underneath the car to see whats really the issue.

Regards,
Amarin.






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New drive line hesitation [900]
posted by  j.pelchat  on Thu Jun 21 19:57 CST 2018 >

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