>>> Wait a minute... I was ASSUMING you see no movement of the blend door
>>> actuator/lever. If it DOES move, stop-stop, then it aint the vacuum.
> Well, if I'm only getting air out of the defrost ducts, is it safe to
> assume the doors are not moving? That the actuators are not getting
> the proper amount of vacuum? Hence the pin-point test on the check
> valve, and my query?
> The propane trick won't work here. I'm not chasing an intake vacuum
> leak. I think I'm chasing a possible leak on the vacuum resevior that
> feeds the blend door actuators, but I defer to your seasoned guidance.
1. It's safe to assume the door isnt moving... it isnt safe to assume the
actuator isnt moving. Anecdotal evidence of the door breaking loose from
2. It's a vacuum leak.. but that means air is being sucked in, not
'vacuum leaked out' And that air is sucked into... yep... the intake
also, of course, listen closely for 'hiss'
Yeh, I'm a Krusty old Geezer, staving off dementia here..DEAL with it!