Why would the air conditioning compressor on a 1999 Chevy Cavalier not come on?
Low on freon, faulty pressure switch, faulty clutch. Jumper the low pressure switch with a paperclip (can running, AC on), if the clutch cycles, it's either low on freon, or the low pressure switch is bad.
If the unit is used to cool a hot room (above 75 degrees) and the thermostat is set at or below 60 degrees, this would cause the condenser coils to freeze and damage the compressor. That is why it is recommended to cool a hot room gradually rather than expect instant gratification out of your air conditioning unit. Typically when an Air Conditioning unit has been frozen, it requires a service call to repair the…
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I'm no expert, but I have a'96 cavalier Z24 with a similar problem. I have found out that when air conditioner is running normally the rad fan is on. My air conditionong is not working.(compressor not coming on.) So instead of the temp. staying around 90degs it goes up to next increment (105?) before the fan kicks on. This only happens in stop and go and has not got into the red on the temp…