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blower motor on newr model



Hi, it's been about a year since I was here and  just joined again,
(digest this time).  There was a detailed write up which included the
use of a steak knife, on how to change the AC/heater blower motor.  I
seem to remember it was for 80s models.  Has anyone on this list
replaced the blower motor in a 92 or newer?  If so, could you share a
step by step replacement with me?

My 93 100CS blower make a whining noise, that comes and goes with AC or
heat on.  Generally, the noise starts after blower is on for a while.  A
road bump may start up or another bump may make it stop.  Putting brakes
on (forward inertia) makes it worse.  Accelerating (backward inertia)
generally makes it lessen.

I though perhaps there was a leaf or some foreign material in the plenum
touching squirrel cage, but I opened rubber part and stuck my hand in
and couldn't feel anything.  Cage turns freely.  Even with the fan
running and sticking my finger in (carefully) just touching the cage,
doesn't result in anything.  I though putting a light load on it, noise
would be evident, but it didn't.

>From what I read on digest, the bad bearing thing causes symptoms like
no starting  or slow starting.  Mine isn't like that.  It's just a high
pitched whine that comes and goes.  Sometimes, when it gets real
annoying on a trip, my wife will turn off fan for a few seconds and turn
it on.  This might work or not.  It's crazy because sometimes it doesn't
make a noise for hours on  a trip, then it starts up.

Anybody ever have a similar experience with a 92 or newer?  I understand
the blower problems on earler cars were common, but I think newer models
use a different blower.  BYW, I also have an 86 5K, with 150 K miles on
it and the blower doesn't have any problems.

Jimbo
93 100 CS
85 5KS
Holland, MI