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Thread: Climate controls stuck on defrost

  1. #1
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    Default Climate controls stuck on defrost

    My climate controls are stuck on defrost no matter what i select anyone have an idea?

  2. #2
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    Manual controls? If so, it's usually a broken vacuum line.
    1986 Mercury Cougar - 2.3T/T5 swap, TC brakes and suspension and rearend, 3" exhaust, 255 lph fuel pump, Stinger BOV, Gillis MBC @ 18 psi
    2003 Chevy Suburban Z71 - Daily driver
    2015 Chevy Volt - Wife's daily driver

  3. #3
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    Vacuum leak. It will default to defrost for safety, since you've gotta see
    2015 Mustang GT Premium - 5.0, 6-speed, Guard Green - too much awesome for one car

    1988 5.0 Thunderbird SOLD SEPT 11 2010: TC front clip/hood ♣ Body & paint completed Oct 2007 ♣ 3.55 TC rear end and front brakes ♣ TC interior ♣ CHE rear control arms (adjustable lowers) ♣ 2001 Bullitt springs ♣ Energy suspension poly busings ♣ Kenne Brown subframe connectors ♣ CWE engine mounts ♣ Thundercat sequential turn signals ♣ Explorer overhead console (temp/compass display) ♣ 2.25" off-road dual exhaust ♣ T-5 transmission swap completed Jan 2009 ♣

  4. #4
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    Oh boy is there an easy way to find the leak?

  5. #5
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    figured it out its the vacuum control valve

  6. #6
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    I probably have a good working one that I could sell you if you need it. Do you have a pic of what it looks like?

  7. #7
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    Quote Originally Posted by 50RACER View Post
    I probably have a good working one that I could sell you if you need it. Do you have a pic of what it looks like?
    i looked at it a bit more and it was a massive vacuum leak at the vacuum ball thing you got one of those?

  8. #8
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    Quote Originally Posted by Moonmount View Post
    i looked at it a bit more and it was a massive vacuum leak at the vacuum ball thing you got one of those?
    I'm sure that I do. Gotta locate it on my parts car though. If I remember correctly, it's under the passenger fender. The system is working fine though, so it has to be a good part. Give me a few days to get to it.

  9. #9
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    Quote Originally Posted by 50RACER View Post
    I'm sure that I do. Gotta locate it on my parts car though. If I remember correctly, it's under the passenger fender. The system is working fine though, so it has to be a good part. Give me a few days to get to it.
    thanks man and yeah the car even runs better now :/

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