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Check to make sure the cooling fan is kicking on it is mounted to the back of the radiator once the car gets up to temp it should kick on to coll the radiator when you are sitting in traffic on some cars if you turn the ac on the computer will automatically switch the cooling fan on
Bring the vehicle into a repair shop the technician has to duplicate the situation before he /she can conduct testing. I don't think your cooling fan is the problem . I'm leaning towards engine main relay.(located under the dash board) contacts getting hot and once you turn off car there is no ventilization inside the vehicle ( a/c air blowing on relay) to cool it down. The only
draft is coming from cooling fan to cool off its contacts. Pretty soon you'll have longer wait periods before you can start the vehicle . Unless you live in the Artics.lol
Make sure you have fully charged AC sytem first, if so Im sorry to tell you this but this is a difficult deal.you may not be able to correct this without taking it to a repair shop with gm scan tool. Reason being the actuators for the hvac that most likely are malfunctioning from either them or another component being bad , require recalibration.The other reason would be the body control module related.It would have to be scanned for U codes which can effect the hvac control.Sorry but thats what I know.
Your trying to get the AC to cool and it won't because the orfice tube may be stopped up. during the flushing procrdue did alot of **** come out( broken compresser parts if it flushed good and you put on the new recieved dryer that the warrentee of the compresser requires. and it doesnt coll at al the condenser is stopped up. You cant unstopp them just install a new one evacuate and recharge make sure the fan blows hard and your done
i need to know how is not cooling the car?
is the fan blowing air or is the blowing air not cold?
it probably isnt cold.lets try that.
put a set of 134a ac gauges on the system and verify pressures.if it has low freon you may hear the compressor turning on and off.if so for sure its low and you will just need to add freon.
go get a 134a fron fill kit not the conversion kit.
and begin to fill untill the comp stays on and air is blowing cold.then stop filling and enjoy.
do not over fill as this will cause it to not cool again.