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2000 Chevy Malibu Intermittent air conditioning

Tiny
MALCOLMCBLACK
  • MEMBER
  • 2000 CHEVROLET MALIBU
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 55,000 MILES
After selecting air conditioning the air conditioning sometimes stays on for a while and sometimes very quickly (seconds) reverts to non AC. When the AC button is reset to AC the same irregular pattern persists. My local garage attempted to 'blow out' dust from the unit but this was only of limited benefit. Any suggestions you can make will help me when I go to the garage once more. Thank you
Malcolm C Black
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Tuesday, September 7th, 2010 AT 9:54 AM

1 Reply

Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
I am suspecting that you may have a tiny leak and there is not enough pressure in the system to remain on. That means there is not enough refrigerant in the system(pressure). So I would test the system pressure before moving foward, if it is found that it is under pressure, that means there is a small leak and some sealant needs to be injected into the system then some more refrigerant. Let me know how it goes
joe
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Thursday, September 9th, 2010 AT 8:25 AM

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