Thread: 2000 GTP - HVAC Mode selector not working - slightly hear hissing behind the dash

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  1. #1 2000 GTP - HVAC Mode selector not working - slightly hear hissing behind the dash 
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    2000 GTP - HVAC Mode selector not working - slightly hear hissing behind the dash

    The mode control really does not work much anymore for the vent location selector. dual mode climate control.

    I am hoping it's just a bad line? If so, something I can grab in preparation of repair/replacement before I pull the dash panel off?
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  2. #2 Re: 2000 GTP - HVAC Mode selector not working - slightly hear hissing behind the dash 
    Killa Bee Scottydoggs's Avatar
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    sounds like the vac pump actuator broke, can be seen in this thread. Blend Door Actuator Replacement

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  3. #3 Re: 2000 GTP - HVAC Mode selector not working - slightly hear hissing behind the dash 
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    Quote Originally Posted by Scottydoggs View Post
    sounds like the vac pump actuator broke, can be seen in this thread. Blend Door Actuator Replacement
    Will check it out, much appreciated!
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  4. #4 Re: 2000 GTP - HVAC Mode selector not working - slightly hear hissing behind the dash 
    Turbo is the way to go. BillBoost37's Avatar
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    FWIW, it's not vacuum actuated, it's electrical and if you open up the actuator after you change it out likely there's one gear cracked and not allowing it to work.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  5. #5 Re: 2000 GTP - HVAC Mode selector not working - slightly hear hissing behind the dash 
    Killa Bee Scottydoggs's Avatar
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    Quote Originally Posted by BillBoost37 View Post
    FWIW, it's not vacuum actuated, it's electrical and if you open up the actuator after you change it out likely there's one gear cracked and not allowing it to work.

    dont think he talking about the heat or cold, but vent, floor defrost is not working.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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