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AC not working

Tiny
LOSS69
  • MEMBER
  • 2007 SAAB 9-3
  • 75,000 MILES
Hello I have a saab 9-3 diesel and my ac doesnt work, normally when you turn the ac on you can hear a little click and the revs of the engine change, but on my nothing of that happens no cold air at all, I checked the pipes of the ac normally one should be hot and the other should be cold but they are both hot, and the engine fans should start working too but they don't ? Help?
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Tuesday, April 30th, 2013 AT 8:20 AM

5 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Have the system checked for a refrigerant leak, this is the most common cause on a faulty A/C system.
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Wednesday, May 1st, 2013 AT 2:51 AM
Tiny
LOSS69
  • MEMBER
  • 3 POSTS
Yh I thought of that but I think even if I had a leak in the system the ac compressor should start working and the fans should kick in just not cold air coming out because of the leak. Im not sure if a leak would stop the entire system to stop?
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Wednesday, May 1st, 2013 AT 11:15 AM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Not so, if the pressures are down an you have low refrigerant the low pressure switch will shut down the system.
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Wednesday, May 1st, 2013 AT 2:12 PM
Tiny
LOSS69
  • MEMBER
  • 3 POSTS
Ok thanks im going to have a look for any leaks and for the refrigerant, will be in touch soon thanks
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Wednesday, May 1st, 2013 AT 4:52 PM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Ok let me know what you find
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Thursday, May 2nd, 2013 AT 4:20 AM

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