a/c repair

1992 TOYOTA CELICA
400,000 MILES • 4 CYL • FWD • AUTOMATIC
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DNSANCHEZ
  • MEMBER
  • 3 POSTS
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?
Jul 21, 2011 at 6:10 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Could be low/no freon in it-When you turn AC on do you hear the clutch engaged the compressor
Jul 21, 2011 at 6:46 PM
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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.
Jul 21, 2011 at 6:54 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Check AC relay and low pressure switch
Jul 21, 2011 at 6:56 PM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
What are the high and low pressure readings?
Are the cooling fans working?
Jul 22, 2011 at 7:16 AM
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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.
Jul 22, 2011 at 7:35 AM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
You have to much freon in system.
Jul 22, 2011 at 7:46 AM
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