My 1.9 (in my '85) has a tiny vacuum takeoff on the forward (as in front of the van) side of the throttle body (a thin vacuum line tees into it). My bus runs like crap if this line pops off, but it's possible it just makes your van hiss. It's not easy to see it when standing at the rear of the engine bay unless I lean way forward over the top of the engine. See also my previous post about checking the two screws that hold the throttle body in place. There's a rubber gasket between the throttle body and the air distributor, I guess that could create a hiss if it's cracked/pinched/missing. Good luck! Tim
At 01:45 PM 6/22/2006 -0700, Mike Elliott wrote: >Mellow Yellow has developed a hissing sound which seems to come from >where the throttle body connects to the air distribution manifold. I >heard the sound then localized it by listening around with a bit of >garden hose in my ear. > >I can't tell if the hissing sound is normal, and I never noticed it >before, or if it new. Spraying carb cleaner there does not change how >the engine runs. > >-- >Mike "Rocket J Squirrel" Elliott >71 Type 2: the Wonderbus >84 Westfalia: Mellow Yellow ("The Electrical Banana") >74 Utility Trailer. Ladybug Trailer, Inc., San Juan Capistrano >KG6RCR |
Please note - During the past 17 years of operation, several gigabytes of
Vanagon mail messages have been archived. Searching the entire collection
will take up to five minutes to complete. Please be patient!
Return to the archives @ gerry.vanagon.com
The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.
Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.