air conditioner

2002 VOLKSWAGEN JETTA
100,000 MILES • 4 CYL • FWD • MANUAL
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GUZMANEDDIE3
  • MEMBER
  • 1 POST
my air conditioner is blowing warm to mild cool air, and according to the dial on the rs134 coolant can it is over pressured already. also the car makes a humming sound at times when the a/c is on and immedieatly stops when i turn the a/c off. what could the problem be?
Jul 19, 2011 at 1:22 AM
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MHPAUTOS
  • CAR REPAIR CONTRIBUTOR
  • 31,937 POSTS
Over charging the system is not the way to fix this, you really should get the system evacuated and tested first, the humming may be a belt or the A/c over charged, can't tell with out actually hearing the noise.
Jul 19, 2011 at 11:00 AM
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