[TR] TR4 wheel bearings?

[Michael Marr]

It could be your differential.  Does the whine diminish when you take your 
foot off the gas?  Does it diminish while you are cruising on the freeway? 
Is it more of a howl than a whine?  Does the pitch change with vehicle 
speed, rather than engine speed?  Does it seem to come from the rear of the 
car?  If yes to all of these, I would suspect the differential, specifically 
the ring gear and pinion.

Mike



> For awhile, a few months, I have been experiencing a obnoxious whirring 
> sound,
> and am not sure where it originates.  When the engine idles  there is no
> noise.. Once accelerating, from first to second all is well.  The sound , 
> kind
> of high pitch I guess, makes its presence, though not too pronounce, shift 
> to
> third and later  to fourth, its extremely loud. It makes one thinks 
> everything
> dry.  The other evening jacked up the car, checked the rear axle, etc, all 
> oil
> levels full.  Since when I purchased the car in 2003, I have never 
> examined
> the wheel bearings, my next project. Could this be the source of this 
> noise,
> or is it something else? Another new territory for me. I am so thankful to
> have a forum like this.