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From: Steve W on 13 May 2010 02:31
Getting a farly heavy vibration in the car steering at about 40-50mph,
especially with power on. Road speed linked rather than engine speed. Have
moved both front wheels to back, and no improvment, so pretty sure it's not
wheel balance.

Could this be a drive shaft or gearbox bearing problem?

Any advice appreciated. Thanks
Steve
Darlington, UK


From: Zimmy on 13 May 2010 07:35

"Steve W" <news.weighell(a)ntlworld.com> wrote in message
news:31NGn.43700$%c6.14224(a)newsfe27.ams2...
> Getting a farly heavy vibration in the car steering at about 40-50mph,
> especially with power on. Road speed linked rather than engine speed.
> Have moved both front wheels to back, and no improvment, so pretty sure
> it's not wheel balance.
>
> Could this be a drive shaft or gearbox bearing problem?

How about the wheel bearings?

Z

From: Albert T Cone on 13 May 2010 07:57
Zimmy wrote:
>
> "Steve W" <news.weighell(a)ntlworld.com> wrote in message
> news:31NGn.43700$%c6.14224(a)newsfe27.ams2...
>> Getting a farly heavy vibration in the car steering at about 40-50mph,
>> especially with power on. Road speed linked rather than engine speed.
>> Have moved both front wheels to back, and no improvment, so pretty
>> sure it's not wheel balance.
>>
>> Could this be a drive shaft or gearbox bearing problem?
>
> How about the wheel bearings?

Hmm. Wouldn't normally be load dependent. G'box output, driveshaft
intermediates, ball joints and track-rod ends would be my initial set of
suspects.
From: felangey on 13 May 2010 09:21
I would say it's a tracking problem.
From: Steve W on 16 May 2010 09:20
Thanks to all who replied. Had car checked at a non-specialist car mechanic
and he was pretty
sure it was not wheel balance or bearings but was pointing to play in the
gearbox output shaft on the passenger side. He was uncomfortable about
doing any further investigation.

I'll take a closer look and perhaps talk to the SAAB dealer (ouch).

Thanks
Steve

"Steve W" <news.weighell(a)ntlworld.com> wrote in message
news:31NGn.43700$%c6.14224(a)newsfe27.ams2...
> Getting a farly heavy vibration in the car steering at about 40-50mph,
> especially with power on. Road speed linked rather than engine speed.
> Have moved both front wheels to back, and no improvment, so pretty sure
> it's not wheel balance.
>
> Could this be a drive shaft or gearbox bearing problem?
>
> Any advice appreciated. Thanks
> Steve
> Darlington, UK
>


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