A/C repair

Tiny
DNSANCHEZ
  • MEMBER
  • 1992 TOYOTA CELICA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 400,000 MILES
I need help fixing my a/c in a 1992 Toyota Celica. The problem started after my radiator started to boil over. I replaced the radiator but the a/c systems pressure is off the scale and shuts off automatically when I try to turn it on. Does the compressor need to be replaced? Is there something easier I could start with?
Friday, July 22nd, 2011 AT 1:10 AM

6 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be low/no freon in it-When you turn AC on do you hear the clutch engaged the compressor
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Friday, July 22nd, 2011 AT 1:46 AM
Tiny
DNSANCHEZ
  • MEMBER
  • 3 POSTS
I just put a whole can of freon in it and yes the compressor engages and then shuts off in about 3 seconds.
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Friday, July 22nd, 2011 AT 1:54 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check AC relay and low pressure switch
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Friday, July 22nd, 2011 AT 1:56 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
What are the high and low pressure readings?
Are the cooling fans working?
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Friday, July 22nd, 2011 AT 2:16 PM
Tiny
DNSANCHEZ
  • MEMBER
  • 3 POSTS
The pressure is so high it is off the scale. The fans are working and the car engine temp is normal. So I assume that the water pump and the thermostat are working correctly.
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Friday, July 22nd, 2011 AT 2:35 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
You have to much freon in system.
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Friday, July 22nd, 2011 AT 2:46 PM

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