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599 A/C issue

Discussion in 'Technical Q&A' started by spirot, May 1, 2023.

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  1. spirot

    spirot F1 World Champ

    Dec 12, 2005
    15,182
    Atlanta
    Full Name:
    Tom Spiro
    #1 spirot, May 1, 2023
    So I've noticed that the A/C in the 599 is acting weird... the driver's side is much warmer than the passenger's side. This happened before and it was the TJK valves - had them replaced that was about 2 years ago... and now the same issue. I looked in the 599 forum, and saw about a battery reset to allow the blend doors to reset.. but that has not worked.

    if you set the driver's side on full cold, and it on Auto it will blow cool air but not cold. if the car sits in the sun, you have to drive quite a bit for tolerable air to come out... essentially the passenger side remains ice cold... thoughts? I'm hoping it's not a dash removal operation...
     
  2. Jamesal925

    Jamesal925 Rookie

    Aug 3, 2022
    11
    #2 Jamesal925, May 13, 2023
    In my opinion that sounds like the blend doors in the HVAC system behind the dash are not properly opening/closing. Possibly one may be stuck causing the difference in temperature in the vents.

    Do you ever hear clicking behind the dash ? This is normally what people notice first when a blend door is stuck/damaged in some way.

    Just my guess hope you find it!


    Sent from my iPhone using FerrariChat
     
    Qavion likes this.
  3. spirot

    spirot F1 World Champ

    Dec 12, 2005
    15,182
    Atlanta
    Full Name:
    Tom Spiro
    #3 spirot, May 15, 2023
    Thanks for the response - no clicking that I can hear…?


    Sent from my iPhone using FerrariChat
     
  4. Ferrari Tech

    Ferrari Tech Formula 3

    Mar 5, 2010
    1,231
    Georgia
    Full Name:
    Wade Williams
    #4 Ferrari Tech, May 16, 2023
    First get the freon checked. If it is low it will act like that.
     
    Qavion, 05F430F1, spirot and 1 other person like this.
  5. spirot

    spirot F1 World Champ

    Dec 12, 2005
    15,182
    Atlanta
    Full Name:
    Tom Spiro
    #5 spirot, May 30, 2023
    Ding,Ding,Ding - we have a winner. I was about 2 lbs down... the Schrader valve was leaking. I filled it up, and voila! super cold A/C - thank you Wade! the valve was loose - abut 1.5 turns so got it tight...hoping that solves the problem. No issues the rest of the weekend!
     
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  6. Ferrari Tech

    Ferrari Tech Formula 3

    Mar 5, 2010
    1,231
    Georgia
    Full Name:
    Wade Williams
    #6 Ferrari Tech, May 31, 2023
    You are welcome, no charge. Really, that is all it was, no charge. Haha.
     
    spirot and 05F430F1 like this.
  7. raemin

    raemin Formula 3

    Jan 16, 2007
    2,388
    Lyon (FR)
    Full Name:
    R. Emin
    #7 raemin, May 31, 2023
    Torquing the valve or the cap is not the recommended way to adress a leaky valve: the $2 valve core should be replaced.
     
  8. spirot

    spirot F1 World Champ

    Dec 12, 2005
    15,182
    Atlanta
    Full Name:
    Tom Spiro
    #8 spirot, May 31, 2023
    it was a new valve ... installed by the dealer a year ago.... but if / when it leaks out again - I'll replace them. - again.
     
    Ferrari Tech likes this.

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