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AC blowing hot air

34089 Views 21 Replies 11 Participants Last post by  Snowms3, 
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The AC isn't working in my car. When I turn it on full blast and activate the AC it still blows hot air. The compressor seems to work (when I turn on the AC the rpm needle moves up).

I thought the system was low on refrigerator coolant so I got a can of coolant. The can was defective and kept telling me it had no coolant in it. I got a new can and it said the system was overcharged (around 700 psi). That is bad news.

Besides the compressor or coolant is there anything else that could be causing it to blow cold air?

my situation is just like this guys. Everything from the sounds to everything else. Also the compressor sounds like it's always running non-stop.

https://www.youtube.com/watch?v=_A_twEx39Lk
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IabReh said:
Is there a reason why you suggested used over a new one?
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I am saying them because it's used oem. Not autozone replacement junk.
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Snowms3
B16racereg6 said:
Check the thermal switch and connector plug. I replaced a compress and thermal switch because the connector on the alt was plugged in but not staying on. Wasted about 200$ when a zip tie fixed my issue!
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How did the zip tie fix this issue?
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