scirocco heater controls

[txrocco@sbcglobal.net (ATS - Patrick Bureau)]

Nope that indicates your heater core, inside your dash is in need of
replacing (clogged but not leaking)

check this tech note I wrote on the subject, get one from a scrap yard or
potter people (gapa.com is good for stuff like that) and replace it.

http://longcoeur.com/scirocco/Technotes/heatercore/index.html

ATS - Patrick Bureau - txrocco@sbcglobal.net


=>-----Original Message-----
=>From: scirocco-l-admin@scirocco.org
=>[mailto:scirocco-l-admin@scirocco.org]On Behalf Of snowfish
=>Sent: Sunday, November 24, 2002 6:44 PM
=>To: 'Euroroc II'; scirocco-l@scirocco.org
=>Subject: RE: scirocco heater controls
=>
=>
=>I found the temp valve by the master cylinder and the cable was
=>attached. I
=>had my wife move the lever back and forth to verify operation and it
=>appeared to be moving the valve lever with no problems. I even pushed the
=>valve lever (where the cable is attached) a little further with a screw
=>driver to get it to its max open position. I warmed the car to operating
=>temp and it still blows luke warm air. Do you think the valve
=>itself may be
=>broken inside?
=>
=>-----Original Message-----
=>From: Euroroc II [mailto:flaatr@yahoo.com]
=>Sent: Sunday, November 24, 2002 1:37 PM
=>To: snowfish@attbi.com; scirocco-l@scirocco.org
=>Subject: Re: scirocco heater controls
=>
=>
=>You have two separate problems here... the heat is controlled by a push /
=>pull cable that goes from the lower slider to a valve in the engine
=>compartment near the firewall and around the brake MC. there is a metal
=>clip that keeps the outside part of the cable that hold it in
=>place and the
=>wire inside is connected to the control lever and to the valve lever,
=>respectively... if the clips are missing then the cable does nothing and
=>you are stuck at whatever position you left it at, in your case
=>cold.  Look
=>for missing clips on the valve assembly and on the bottom HVAC control.
=>
=>You can try to move the one on the valve by hand and you should get warm
=>air.
=>
=>As for where the air comes from this is controlled by a vacuum switch and
=>vacuum solenoids... There are two 2 position valves and one 3 position
=>valve. If it is stuck in Defog then all the valves are at their default
=>position and that means the vacuum selector is not working...
=>There are two
=>reasons the selector does not work... one is that it is bad and two is
=>there is no vacuum.
=>
=>Diagnose the problem starting from the source. Look for a T fitting near
=>the fire wall on the passenger side with one hose leading to a check valve
=>(half blue and half black in line deal)... the other end of the valve
=>should go into on of the two spigots that come off the side of the fresh
=>air / recirculate flap thingy in the rain try under the rain cover. This
=>valve is notorious for plugging up... just remove the valve and reconnect
=>the hoses, you may need to temporarily use a longer hose. If everything
=>works then replace the valve. this valve just keeps the HVAC system
=>isolated from the rest of the engine vacuum so if you shut down the engine
=>your flaps stay where they once were... it is safe to drive without it.
=>
=>If the vacuum check valve is working go to the vacuum switch on the HVAC
=>control. Set for fresh air or anything other than defog and start pinching
=>off the other hoses till you hear the flaps moving. This should help you
=>isolate which solenoid is leaking. The one that controls the fresh air
=>vents and defog is a 3 position valve, 2 hoses go too it and is easily
=>accessible thru the dash with the instrument cluster removed. there one in
=>the  recirculate /  fresh air thing and this is accessible from the rain
=>tray and there is a third on the right side of the center console located
=>below the 3 position valve.
=>
=>Good luck
=>
=>-RGK-
=>
=>At 09:27 AM 11/24/02 -0700, snowfish wrote:
=>>HI all,
=>>
=>>The heater controls have stopped working in my 87 16v rocco. Both the
=>>position and temp controls do nothing.
=>>Can anyone give me a good starting point? The levers slide back and forth
=>>ok, but nothing happens. Only cool air blows and its stuck in defrost
=>>position.
=>>
=>>TIA,
=>>
=>>Ian
=>>87 16V rocco
=>>Arvada, CO
=>>
=>>
=>>_______________________________________________
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=>>Scirocco-l@scirocco.org
=>>http://neubayern.net/mailman/listinfo/scirocco-l
=>
=>
=>
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