Bryan,

Regards CV's - there are two aspects to consider. (1) - loose CV/CV
bolts, and (2) one or more worn CV's

Run a positive test on the CV's.

Find a big empty parking lot somewhere, crank your steering wheel all
the way over to the stop in one direction, and drive the van in a circle
a couple of times whilst the steering wheel is at the stops. Accelerate
and decelerate a bit in the process. Once done, change directions and
repeat. If you have a CV problem it will more that likely show up during
this test. Might not, but most likely will. It has worked for me a
couple of times. If  yo have one that is dying, you definitely know
where it is.

After you do the test. or maybe even before the test - make darn sure
your CV bolts are tight. Loose CV bolts will allow the mating surface of
the CV race to flange to move around and that will induce a popping
knocking sound, much like a CV whose wear tolerances are getting out of
limits.

Good luck.

John Rodgers
88 GL Driver

BJ Feddish wrote:
> I "thought" I heard a noise last week and today I definitely heard it.
> Sounds expensive. Anyway, it's a knocking sound that happens around 40 mph
> whether I am in 3rd or 4th gear. It does not make the sound (or not loud
> enough for me to hear it) at lower speeds. Pressing my foot on the clutch
> makes the sound stop and I coast quietly along.
>
> Thoughts? Insight? Laughter?
>
> Thanks,
> Bryan
>
>
>