Good to  hear you got that resolved. Went though something similar with
my red van two years ago.

John

On 2/25/2014 6:19 PM, Jim Felder wrote:
> I recently went through a long series of diagnoses as to why my diesel
> westy, in addition to the usual diesel noise, had this loud drubbing and
> whoom-whoom-whoom sound on the road that pretty much drowned out the diesel
> noise that I pretty much have under control now.
>
> I took it to one place, they said it was the tires. I took it to my tire
> placee they said it was a right front bearing. I took it to my vanagon
> shop, they said it was my right rear.
>
> I went so far as to buy a full set of rear bearings and deals, which I am
> glad to have as spares, but I am glad I did not spend the money nor do the
> work to replace them. It wasn't in the rear.
>
> If I swerved to the left, it made the noise louder, making everyone think
> it was a right-side bearing.
>
> Low frequency sounds cannot be located by the human ear, I should have
> remembered that from messing with audio equipment.
>
> It was the inner bearing on the left front. I replaced the bearings and
> races this afternoon and am enjoying the silence.
>
> Jim
> .
>