RE: [DMCForum] Mode switch/ Air vents won't open

["Jim" <starbuck@xxxxxxxx>]

	I just made sure it wasn't in the heater mode and its still
doesn't open. I can hear the doors open and close in the other positions
of the mode switch. I have been in the engine compartment a lot since
I'm having a really bad hot start problem. But I looked around and
didn't see any thing I might have knocked loose. I guess the next step
is to take the mode switch out?

Jim

-----Original Message-----
From: Walter Coe [mailto:Whalt@xxxxxxx] 
Sent: Thursday, December 19, 2002 4:02 PM
To: DMCForum@xxxxxxxxxxxxxxx
Subject: Re: [DMCForum] Mode swtich/ Air vents won't open

Jim,

The center console vents are NOT supposed to open while switched to
"heater".  It you want hot/warm air blowing from the center console
vents
then put it on "vent" and turn the heater control valve to the red area.

The difference between "heater" & "vent" modes is how the air is
directed --
not in their ability to change air temperature.

However, if your center vent isn't opening in any mode then you most
likely
have a vacuum problem.

Try this test: With the engine running turn the fan speed switch all the
way
down (so you can hear what is going on in the dash).  Now turn the mode
switch through all its positions and listen for all the vacuum actuated
flapper doors to move.  If you hear nothing, then you probably have a
vacuum
hose loose in the engine compartment.  If you hear flapper doors moving
but
still no air through the center vents then you probably have a faulty
mode
switch or a leaky vacuum actuator.

Let us know what you find,
Walt

> For some reason my air vents in the center console won't open up. The
> only thing that has been different lately is that I've been using the
> heat. What do I need to do? The mode switch isn't making any hissing
> noise at all.




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