Re: HELP! '91 200TQ Climate Control Probs

[David Head <dave.head@worldnet.att.net>]

WILLIAM BAKER wrote:

> I recently bought a '91 200TQ with 94,000 miles on it.  The Climate
> Control has a wierd problem.  When set on "Auto" in hot weather it works
> very well, delivering cool air through the dash vents.  However, after a
> few minutes, the air duct dampers spontaneously change position and the
> cool air is delivered through the floor and the defroster vents.
> Resetting the CC to "Econ" causes the dash vents to reopen (after a
> delay) and the the CC can be returned to cooling mode by resetting the
> "Auto" mode.  Unfortunately, after a few more minutes the cycle starts
> over again.

BTDT - replace the vacuum motor that changes position of the recirc door, or
check to see if it is unplugged. This is a symptom of a big vacuum leak in
the system.