Interesting low speed vibration, 5KQ and 5KTQ

[Grant Lenahan]

Oh, a loose wheel would be noticed at high speed :-)

I'm still ruminating.

Grant

On May 28, 2008, at 8:25 PM, Mark J. Besso wrote:

> Is there anything you can do at that speed that makes it NOT happen?
> (steering, braking, clutch-in, etc.)
>
> Is it under braking as well as acceleration?  Is the vibration felt
> throughout the vehicle or just in the steering wheel?  Is there any  
> noise
> associated with the vibration?
>
> Any chance one of the wheels isn't properly tightened?  If so, I  
> pray you
> check BEFORE the next road test!
>
> ~Mark
>
>
>
> On Wed, 28 May 2008 14:47:27 -0700
>   "john at westcoastgarage.net" <john at westcoastgarage.net> wrote:
>
>   A new one to me, 86 5KTQ has a low speed vibration, feels like a
>   driveshaft U-joint when leaving from a stop.  Throttle position  
> isn't a
>   factor, only speed.  After about 20 MPH, the vibration is gone.  
> Doesn't
>   matter whether you start out in first or second gear. I thought  
> maybe
>   we'd disturbed something when we did the clutch, but a phone call  
> from
>   another customer yesterday is making me rethink that conclusion.   
> In his
>   87 5KQ, the vibration appeared 7 years after the clutch job,  
> leading me
>   to believe it may not be related.  The driveshaft guy says it's  
> not a
>   normal symptom of a driveshaft failure, but these aren't  
> something with
>   which they deal with any real frequency.  Any hints/questions/ 
> BTDTs out
>   there that might help me solve this problem?  Lotsa miles on both  
> cars,
> BTW.
>
>   TIA, John
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