Ac fix
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Teching In
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Ac fix I’ve recently purchased a 2000 ss, with heads cam intake combo. Ever since I’ve bought it I have had a problem with the air conditioning first going through the defrost and then maybe 15 minutes later switching to the vents. I’m thinking maybe a vacuum leak in a line somewhere. Also does it cool. Any ideas? Thanks
I’ve recently purchased a 2000 ss, with heads cam intake combo. Ever since I’ve bought it I have had a problem with the air conditioning first going through the defrost and then maybe 15 minutes later switching to the vents. I’m thinking maybe a vacuum leak in a line somewhere. Also does it cool. Any ideas? Thanks
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Thread Starter
Teching In
Joined: Feb 2023
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yeah I’m thinking something along those lines. It’s just weird how it will finally switch over to vent after 15+ minutes of driving. Will not cool down though either.
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As far as it not blowing cold- either there’s not enough refrigerant or maybe the low pressure switch is bad. Look up how to jump the pressure low pressure switch to see if the compressor comes on. If it comes on try to add some R134A. It’ll blow hot if there is too much r134a in the system but that’s not going to be the case unless it was serviced recently.
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Verdad Gallardo I would also start by checking the blend door for the cooling problem. Unlike the other AC controls, the blend door is cable driven. If you move the blend **** in a quiet car, you should hear a "thud" as the door hits the extremes of its motion in the duct system. If you hear the thud at the full cold and full hot setting, I would assume the blend door is good and then move to the refrigerant system.
On The Tree
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The switch most likely is not bad. It's low on refrigerant, I'd put money on it.
TECH Fanatic
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It's a transducer not a switch. The system in these cars is a V7 variable displacement compressor. The switch turns the fans on when the pressure rises and shuts the compressor off if the pressure is low. The compressor never cycles.
The switch most likely is not bad. It's low on refrigerant, I'd put money on it.
The switch most likely is not bad. It's low on refrigerant, I'd put money on it.
On The Tree
Joined: Jan 2023
Posts: 144
Likes: 54