What is this and do I need it?

Discussion in 'Technical' started by shaneb, Oct 20, 2011.

  1. shaneb

    shaneb Member

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    There is a metal bowl thing attached to one of my heater hoses and im curious if its needed at all. Please let me know thanks!
     

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  2. tomboy

    tomboy Member

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    Its a vacum operated shut off valve.
     
  3. Bryant

    Bryant forgot more than learned

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    it looks like your heater is bypassed anyways. you can just cap off the ports on the motor for the heater hoses or loop a heater hose from one to the other. you dont need all that stuff that is there right now till you hook up a heater core.
     
  4. shaneb

    shaneb Member

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    I have it disconnected from the heater core while I installed the transmission, If it helps the heater in anyway I would like to keep it since winter is around the corner. Do you happen to know what vaccum it plugs into to?

     
  5. Bryant

    Bryant forgot more than learned

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    on air condition cars it uses that vavle to turn on and off the heat. if you took the valve out it will heat the car all the time.
    there is a vacuum hose that comes from the the inside of the car that goes to that valve.
     
  6. shaneb

    shaneb Member

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    Thank you sir!:Handshake



     
  7. mercgt73

    mercgt73 Member

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    I thought that it only blocked off the heater core when the temp control was full cool. Once you come off of full cool, then it allows the coolant to flow through the heater core. I know that you can have hot air come out the defroster vents with the A/C on, Temp on Hot.
     
  8. Bryant

    Bryant forgot more than learned

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    you are right about it blocking the flow through the heater core when on full cool. if the valve was removed and the heater hoses hooked up to the heater core it will have heat all the time. now i have not worked on a maverick ac heater box so i dont know if it uses a blend door to fully divert the air around the heater core or not but its got that valve for a reason.
     
  9. mercgt73

    mercgt73 Member

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    Yep, that's what it does. You are right, it would have a hot heater core all time though. Not sure how well full cool would work with the heater core hot. Like you said, Ford put it there for a reason. It sure wasn't for looks.

    I have seen people install manual vales, and leave it closed during the summer. I would not want the coolant just sitting in the core for months. Might not even hurt anything, but I prefer to keep fluid moving. I even think the vacuum valves allow a tiny amount to circulate.
     
  10. shaneb

    shaneb Member

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    I took the AC out because the pump was froze. I plan on running the heater only for now.


     
  11. Nasty72Maverick

    Nasty72Maverick Member

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    that my friend is called a heater control valve.
     
  12. PaulS

    PaulS Member extrordiare

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    If you won't be using the AC then you can remove the valve.
    Paul
     
  13. shaneb

    shaneb Member

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    Great thanks everyone! :Handshake





     

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