Question about 2004 Oldsmobile Alero

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Whear is the main vacuum line at on the moter that controls the heater

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They don't use vac any more. They use electric motors to open and close the blend doors now.

Posted on Jan 17, 2013

  •  Stephen
    Stephen Jan 17, 2013

    At least they use electric motors for blend doors on 2004 Olds Alero cars. If you have vac going to something under the dash, the source should be on the intake manifold.

  • rbonejr81
    rbonejr81 Jan 18, 2013

    ya vacuum runs the doors to control whear it cumes from and hot to cold.


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