Question about 1992 Plymouth Grand Voyager

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Ac duct the flap in the dash for the ac and heat keeps changing on its own it will not blow out on you it will blow on the floor or the widow it dosen't mater what button you put it on it blows where it wants to

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Hi,

thats the whole heater control(button) box, if your handy you can remove it , remove neg battery cable. gently remove dash plastic with butter knife with tape on it (it pops out) then youll have to use a phillips/allen screwdriver to take control box out .make sure to tape all the hoses and mark them or use a digi cam , go to the junk yard and get one itll be around 20.00.. No money? try and locate the main vacumn line to the heater control box in the engine compartment and plug the one going in AND out. It will be stuck on one setting but its better than that.

J Meredith

Posted on Jul 09, 2008

  • Jude Meredith
    Jude Meredith Jul 12, 2008

    hi,

    that also may be the vacuum reserve tank may be cracked and is leaking somehow, listen under the hood and maybe go to the junkyard for parts



    J

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