James,

In addition to Steve's RV shop suggestion ... Should you need a VW shop
There is one on my list at roadhaus.com

Please note ... Mixed reviews from users.

Ken's Import Service & Repair 
1609 E. Butler Ave 
Flagstaff, Arizona 
Phone: 928.774.4536 
 
Owner: Ken Schultz  

Type Of Shop: Repair 
Will Work On: Imports 

- - -

Date:    Tue, 8 May 2007 08:06:51 -0700
From:    Steven Johnson <sjohnso2000@YAHOO.COM>
Subject: Re: Help From the Road in Sedona/Flagstaff

James,

  There is or was an RV place along the main road through Flagstaff that I
  had my propane system checked for leaks when I was on a road trip of
  my own around the country.  This was back in the late 90's.  It was a
  fairly large place with very reasonable prices.  I'll have to check the
archives
  to see if I posted the name of the place.

  Steven
  '91 Westy

James V <tornadored@GMAIL.COM> wrote:
  I'm on a solo road trip with my 88 Westy, currently in Sedona, AZ.
Unfortunately a couple of problems have come up:

Problem 1. I believe my Auto Stop propane valve may be bad. After running
empty, I took it to three different stations, none of which were able to get
it to fill. I haven't had this problem before, and the attendants seem to
be doing everything correct - attach hose, turn on gas, open bleeder.