[V8] Heater/defroster flap motor.

[Ingo Rautenberg]

I believe Kneale is correct wrt the motor-driven cam/flap on the side driver's side of the heater box. 

The difference between the earlier and later cars (I believe) has to do with the other flap controls (upper/middle/lower) which on the older cars with the GM / AC Delco controller uses vacuum hoses underneath the dash rather than the electric actuators where there are simply red and blue connectors involved. 

HTH

Ingo

Ingo Rautenberg

-----Original Message-----
From: "kneale at coslink.net" <kneale at coslink.net>

Date: Thu, 11 Dec 2008 08:36:31 
To: <v8q at bellsouth.net>; <dsaad at icehouse.net>; <v8 at audifans.com>
Subject: Re: [V8] Heater/defroster flap motor.


I thoutht all the V8s were like the 200q20vs that have the electric motor
on the driver side of the heater core box.

Look for a bunch of Phillips head screws holding a cover onto the box.  You
need to remove the wiper linkage to get access to all the screws.  First
one of those motors I got was about $60.  Last one was over $80.

Original Message:
-----------------
From: Dave Head v8q at bellsouth.net
Date: Wed, 10 Dec 2008 22:03:24 -0500
To: dsaad at icehouse.net, V8 at audifans.com
Subject: Re: [V8] Heater/defroster flap motor.


I can't remember - I know the 92 up cars went to electric motors for the 
other motors. You can go into the diagnostics and operate them...

Dave Saad wrote:
> If I remember right, it is a vacuum motor - so the motor itself is  
> easy to test if you can expose the tube that goes to it.  Maybe the  
> best place to do that would be the vacuum switch module which is  
> mounted up around the glove box.
> 
> I think there is a diagnostic mode for the climate control system too  
> - where you can step through all the functions and watch for things  
> to move.
> 
> Before you get too carried away though, have you looked for broken or  
> loose vacuum lines?
> 
> Dave
> 
> 
> On Dec 10, 2008, at 6:49 PM, Rich Ehlert wrote:
> 
>> Hi all.
>> I am having trouble with my heater/defrost flap motor.  Has anyone  
>> had any
>> experience with getting that thing to work?
>> Thanks,
>> Rich
>> '93 V8
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