[Supras] Heater problem

[Michael Bringle]

Sounds like the classic heater VSV problem.  Happened to me.  Easy 
fix, cheap if you get a used one, semi cheap if you use the one for the merc:

http://www.rclambert.com/supra/vsv.htm


-Mike
89T BST++
http://www.CygnusX1.net/supra

At 06:57 PM 9/8/2006, Jeff wrote:
>The heater control valve just stopped working in my 91 turbo. If I 
>turn the heat up to 85 the valve doesn't open. If I connect the 
>vacuum that goes to the switch directly to the top of the valve it 
>opens. So I'm thinking it's either the valve or the HVAC controller.
>
>Does anyone know what the voltage should be at the heater control 
>valve when the temperature is set to 85 ( I think that temperature 
>is suppose to force the valve all the way open regardless of the 
>cabin temp)? Is there a test voltage that can be applied to the 
>heater control valve?
>
>Assuming the worst...
>
>Can these be repaired?
>Are they expensive?
>Are they still available?
>Can I use one from some other Toyota?
>
>Thanks in advance.
>
>JP
>
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