97 Olds Aurora AC blowing warm air a day after recharging system
I have a 1997 Oldsmobile Aurora that I recently recharged the AC on. After I filled the system yesterday with freon it started finally blowing out cold, but today its blowing warm again. The compressor works fine. Any answers?
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Re: 97 Olds Aurora AC blowing warm air a day after...
Several- The system should hold freon for years without leaking. There are pressure switches and they cut off the compressor with an undercharge and an overcharge. You need guages to measure the charge. There are testers the A/C shops have called "sniffers" which can detect a leak. If you have no leak then you need a technician to add or remove freon to get the concentration right. Or you need guages.
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GM products have a safety feature which shuts down compressors is they run too low on refrigerant. Honestly surprised you were able to fill the system with refrigerant since the compressor would have shut off. The best way to reset the compressor is to disconnect the negative battery cable for 15 min. After reconnecting, the compressor should function again assuming there's enough R-134A in it. If there's not, turn the AC to MAX and add the refrigerant. At this point, the system should actually **** the can dry. Hope this helps with your AC problem. All the best! Greg
Your problem is either a clogged heater core, or the air temp control blend door actuator, in order to check for a clogged core feel the heater core hoses in the eng compartment, they should both be hot, one a little hotter than the other, if they are the core is ok and the blend door actuator needs to be replaced.