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Thread: Hvac problems

  1. #1
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    Hvac problems

    Having some problems and I need some help figuring out what exactly is causing this.


    The air is not coming out of any of the vents.. A.c or heat either or the air still does not come out.

    Anyone know what is causing this?

  2. #2
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    Can you tell if the fan (blower motor) is coming on? And is the AC compressor pulling in?

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    Paul T. Casey

  3. #3
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    Yes both are working.

  4. #4
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    Is there air coming out of any outlet? The floor the defrost maybe?

    '98 MGM LS...sold..................... .............................. ..'03 300A...sold 6/17

  5. #5
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    Have the charge of 134 checked and it possibly could be a Blend Door motor.

  6. #6
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    The fan motor on the firewall is coming on. Not the radiator fan. I'm still thinking is the BCM, Blower Controler Module.

    It was an honor to have
    my ASS kicked by you!
    Rest In Peace!
    Paul T. Casey

  7. #7
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    If the HVAC fan isn't it working then it's not most likely the BCM.

    If the air is only coming out the defroster then it's not most likely the EATC.

    I can repair both for you.
    “When you can’t make them see the light, make them feel the heat.”
    Ronald Regan

    "The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
    is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."

    Lt. Colonel Ralph Peters

    “Be polite, be professional, but have a plan to kill everybody you meet.”
    "I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
    General James Mattis




  8. #8
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    Quote Originally Posted by fastblackmerc View Post
    If the HVAC fan isn't it working then it's not most likely the BCM.

    If the air is only coming out the defroster then it's not most likely the EATC.
    Jim, I think this is what you meant...?
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  9. #9
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    Quote Originally Posted by TJCOX View Post
    Have the charge of 134 checked and it possibly could be a Blend Door motor.
    Neither of those would cause the OP's complaint. He said no air comes out of any of the outlets.
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  10. #10
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    OP says the blower motor is coming on, but he feels no air from any vents. From what I can see in the manual, there is no combination of door settings that would cause that.
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  11. #11
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    Quote Originally Posted by RF Overlord View Post
    OP says the blower motor is coming on, but he feels no air from any vents. From what I can see in the manual, there is no combination of door settings that would cause that.
    I just want to make sure we are talking about the same fan. He's in Germany. We may have lost something in translation..... Like my countery azz needs to me translating anything.

    It was an honor to have
    my ASS kicked by you!
    Rest In Peace!
    Paul T. Casey

  12. #12
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    Quote Originally Posted by RF Overlord View Post
    Jim, I think this is what you meant...?
    Correct.... Damm auto fill...
    “When you can’t make them see the light, make them feel the heat.”
    Ronald Regan

    "The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
    is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."

    Lt. Colonel Ralph Peters

    “Be polite, be professional, but have a plan to kill everybody you meet.”
    "I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
    General James Mattis




  13. #13
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    Quote Originally Posted by 03knight View Post
    Having some problems and I need some help figuring out what exactly is causing this.


    The air is not coming out of any of the vents.. A.c or heat either or the air still does not come out.

    Anyone know what is causing this?
    May be the blower control module under the hood on the firewall..had to change mine twice.

  14. #14
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    my ac/heat only blows through defrost anyone who can help?

  15. #15
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    Quote Originally Posted by Gabriel2011 View Post
    my ac/heat only blows through defrost anyone who can help?
    PM me..... I can help.
    “When you can’t make them see the light, make them feel the heat.”
    Ronald Regan

    "The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
    is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."

    Lt. Colonel Ralph Peters

    “Be polite, be professional, but have a plan to kill everybody you meet.”
    "I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
    General James Mattis




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