Where is the A/C Low pressure port on a '04 Pontiac Grand Prix?

J

Jack N

New member
Been looking for the low pressure port. Found some explanations by searching online but only for other vehicles and I want to make sure I get the right port. A picture would be great, or a very detailed explanation please.
 
Ok the low side is the smaller of the 2 ports. These ports are mad so you can not hook up to add freon to the wrong port. The low side will accept the adaptor and not be able to hook up the can to the high side.
If you are adding freon, you can not hook up the can to the high side as the Adaptor will not fit.
 
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