1999 Cirrus Air Conditioning problem

Discussion in 'Cirrus' started by mwitcza, Jun 11, 2006.

  1. mwitcza

    mwitcza Guest

    Every once in a while my 99 Cirrus will only blow out hot air when you
    turn on the air conditioner. Sometimes you can turn it back off and
    then on and it starts cooling. Other times it seems like the car has to
    sit for a while for it to work. When it does work, it cools fine. At
    last oil change, I had them check the freon level and was told it was
    OK (pressure was about 35). Mechanic suggested electrical problem. Any
    ideas?? Thanks in advance
    mwitcza, Jun 11, 2006
  2. mwitcza

    Bill Putney Guest

    My inclination is to tell you to ignore what the mechanic told you and
    to assume that the refrigerant is right at the minimum to satisfy the
    computer that there is enough refrigerant. The sporadic running is
    caused by ambient and system temperature variations putting the system
    pressure above and below the cutoff threshold.

    Bill Putney
    (To reply by e-mail, replace the last letter of the alphabet in my
    address with the letter 'x')
    Bill Putney, Jun 11, 2006
  3. mwitcza

    maxpower Guest

    Funny you should bring this up, my sister in laws Cirrus has been having the
    same issue. I even drove it to work the other day to try to get it to act up
    and it did one time, I turned the a/c off then back on and it work without
    an incident on the way back home from work. eveything checked out good, no
    loose wires. The system was fully charged.
    She bought the car over Thursday complaining it didnt work again, I turned
    it off and back on and heard the compresor kick on. Either it was a
    coincidence or there is a problem in her control head.

    Just a thought, possibly the same problem you are having?
    maxpower, Jun 11, 2006
  4. mwitcza

    philthy Guest

    low side pressure was 35 what about high side pressure ??
    was any fauult code recorded in the pcm or bcm that would be the starting
    philthy, Jun 12, 2006
  5. mwitcza

    Bill Putney Guest

    Could this also be a sign of moisture in the system? A drop hits the
    orifice and freezes up, blocking the system, so it stops cooling, then
    after it sits (and thaws), it starts working again?

    Bill Putney
    (To reply by e-mail, replace the last letter of the alphabet in my
    address with the letter 'x')
    Bill Putney, Jun 12, 2006
  6. mwitcza

    maxpower Guest


    I would doubt that. more then likely a loose connection or intermittent
    sensor fault. Normally the pressure transducer or cycling switch

    Glenn Beasley
    Chrysler Tech
    maxpower, Jun 12, 2006
  7. mwitcza

    philthy Guest

    i seen this new additive for r134 systems and irt's to tell you if a sealer
    has been added to the system it's $16.00 for 3 ounces and it's put in with
    a dye plunger kit
    seems the sealer reacts with air to creat a blockage at the leak but if there
    is trapped air in the system then it reacts to that and blocks, clogs the
    whole system
    philthy, Jun 14, 2006
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