Thread: 04 pontiac grand prix heat wont work but blower motor does,and heated seats dont work

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  1. #1 04 pontiac grand prix heat wont work but blower motor does,and heated seats dont work 
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    any clues? maybe a fuse problem?
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  2. #2 Re: 04 pontiac grand prix heat wont work but blower motor does,and heated seats dont  
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    sounds like 2 seperate problems... blower motor running and no heat is maybe a blend door actuator... heated seats could be many things... bad switch, broken wire, blown fuse, possibly but dont quote me on this but the body control module could be taking a sh*t...
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  3. #3 Re: 04 pontiac grand prix heat wont work but blower motor does,and heated seats dont 
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    just checked the alldata(tm) and yes heated seats are run through the bcm, but the blower motor and blend door actuator do not, do you get random locking and unlocking of ur doors???
    Last edited by mskram1; 03-01-2013 at 04:10 PM. Reason: incomplete
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  4. #4 Re: 04 pontiac grand prix heat wont work but blower motor does,and heated seats dont 
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    if u dont have heat but the blower motor works,

    check coolant level
    waterpump might be dieing
    cloged heater core

    do you feel the blower through the vents?
    06 Gxp, Bermuda Blue
    82 K5, Black on 35's
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