The first place I would look would be the CV joints.  Bad CV joints will
knock under various conditions such as turning either right or left,
accelerating or decelerating.   It is also characteristically an
intermittent problem.  If your van has the customary 200,000 miles on it
start at the CV's.

John McLean   87 Vanagon GL

> Hi all -
>
> When I'm idling, or actually coasting in 2nd or 3rd, sometimes I hear a
> knocking that sound like it's from on of my right wheel wells.  Is this a
> loose CV joint or something that can be fixed easily?  My girlfriend had
> this a while ago on her car and it was just a bracket needing tightening.
>
> Anybody know where I should begin looking?  Also anybody know if this is
> dangerous?
>
> Thanks.
>
> -eric
>
> ----------------------
> '85 GL Camper (Moby)
> San Francisco, CA
>