This is an easy fix. I think I responded to this once
before. Did you get my previous message?

                    Eric

At 11:02 AM 4/14/99 -0600, Carl Hammerdorfer wrote:
>  Hi, Sorry to serve up this furry leftover again, but the panel is still
>stumped.       It does it when it's hot, when it's cold, when it's wet,
>when it's dry, up-hill, downhill.....       But the thing is still broken.
>  In all cases, switching off the ignition and switching it back on seems
>to clear the system and I'm chugging along again, hitting on all four.
>     HE thought perhaps the rubber hose leading inton the MAS was
>collapsing under suction pressure, thus not allowing air through and
>causing that valve to slap closed.      Don't want to spend my whole
>retirement though. Any new advice will be greatly appreciated. Cheers, Carl
>86 Vanagon...