Over the past month or two vacuum leaks in or around the brake booster have been mentioned several times as cause for poor running or no running at all. I think these problems have been easily and inexpensively repaired, _once they were found_. The difficulty with the diagnosis, IMHO, is that it's counter- intuitive to look for a problem up near the left front wheel whose symptoms are displayed in the engine compartment. Now if it is counter-intuitive to look for these leaks up at the left front wheel on a breadloaf it is going to be a downright leap-of-faith to start rooting around behind the dashboard of a Vanagon looking for a cracked or loose hose, hissing booster, etc.. I mention this thought because I know someone with a Vanagon posted recently with idle problems. If they haven't fixed it yet, it might be worthwhile to pop off that dash nacelle and have a little look around.
Dave Kautz
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