AWD Transmission: - XC70 prop shaft vibration / haldex

Guillaume North · Jan 17th, 2021, 19:47

Hi all,
I recently replaced the prop shaft on my 2006, xc70, 112k, D5 due to a worn centre support bearing. Interval of about four months running 2wd before fitting new prop. Car running fine in 2wd. New prop causing vibration. Vibration at 1800 - 2100 rpm but worst in 6th gear at these revs doing 60mph. Not really noticeable in 1st, 2nd or 3rd. Worse first thing in morning when cold then gradually gets better. Also an intermittent whirring noise that sounds like a worn wheel bearing. New prop removed this weekend - vibration gone / no more whirring. Suspected haldex but no where near 100% sure. Plus 4wd working well in recent snow. Any suggestions / potential fixes anyone can recommend would be appreciated.
Thanks,

oragex · Jan 17th, 2021, 20:27

Which brand the replacement shaft ?

Guillaume North · Jan 17th, 2021, 22:01

Unbranded from ebay.

oragex · Jan 18th, 2021, 05:50

While I can't tell for sure, that could be the issue. For example, most chinese axle (drive) shafts are unbalanced and cause steering vibrations

Guillaume North · Jan 18th, 2021, 17:37

Thanks for feedback. My thinking if the prop wasn't balanced is that it would be consistently bad, I.e. not get better as the car warms up. I seem to remember a whirring with the old prop as well. Dodgy prop is the obvious answer but unfortunately I think there's more to it in this case. I'm going to troubleshoot by refitting old prop with new cv bearings and also refitting new prop after making sure flange mating surfaces are spotless. See what differences there are. Will post back here what I find. Cheers

Jan 17th, 2021, 19:47	#1
Guillaume North New Member Last Online: Jan 16th, 2022 09:27 Join Date: Jul 2020 Location: Skipton	XC70 prop shaft vibration / haldex Hi all, I recently replaced the prop shaft on my 2006, xc70, 112k, D5 due to a worn centre support bearing. Interval of about four months running 2wd before fitting new prop. Car running fine in 2wd. New prop causing vibration. Vibration at 1800 - 2100 rpm but worst in 6th gear at these revs doing 60mph. Not really noticeable in 1st, 2nd or 3rd. Worse first thing in morning when cold then gradually gets better. Also an intermittent whirring noise that sounds like a worn wheel bearing. New prop removed this weekend - vibration gone / no more whirring. Suspected haldex but no where near 100% sure. Plus 4wd working well in recent snow. Any suggestions / potential fixes anyone can recommend would be appreciated. Thanks, Last edited by Guillaume North; Jan 17th, 2021 at 20:00.

Jan 17th, 2021, 20:27	#2
oragex Premier Member Last Online: Jul 26th, 2021 21:24 Join Date: Jun 2013 Location: Coldnada	Which brand the replacement shaft ? __________________ Several Volvo Repair Videos https://www.youtube.com/playlist?lis...ECTts0FSVSOT_c

Jan 18th, 2021, 05:50	#4
oragex Premier Member Last Online: Jul 26th, 2021 21:24 Join Date: Jun 2013 Location: Coldnada	While I can't tell for sure, that could be the issue. For example, most chinese axle (drive) shafts are unbalanced and cause steering vibrations __________________ Several Volvo Repair Videos https://www.youtube.com/playlist?lis...ECTts0FSVSOT_c

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Jan 17th, 2021, 22:01	#3
Guillaume North New Member Last Online: Jan 16th, 2022 09:27 Join Date: Jul 2020 Location: Skipton	Unbranded from ebay.

Jan 18th, 2021, 17:37	#5
Guillaume North New Member Last Online: Jan 16th, 2022 09:27 Join Date: Jul 2020 Location: Skipton	Thanks for feedback. My thinking if the prop wasn't balanced is that it would be consistently bad, I.e. not get better as the car warms up. I seem to remember a whirring with the old prop as well. Dodgy prop is the obvious answer but unfortunately I think there's more to it in this case. I'm going to troubleshoot by refitting old prop with new cv bearings and also refitting new prop after making sure flange mating surfaces are spotless. See what differences there are. Will post back here what I find. Cheers

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)