Question about 1993 Saturn SL1
What is highest PSI on low pressure side while air to get coldest air out of system was at 20 PSI charged to 30 PSI while running now system cools air but does not get as cold as it use to
This is normal if the heat load (temperature inside the car) is not extreme (100+ degrees F). A slightly undercharged system will run colder when the weather is not to hot. However, an undercharged system will not perform as well when the temps go up, as there is not enough Freon to tranfer the massive heat load out of the cabin of the car.
One very simple thing that will help performance is the clean the A/C condenser (in front of the radiator). Even if it looks clean, debris builds up in the gap between the radiator and the condenser. Spray water from a garden hose into the front of the condenser. This works best with the engine running and the A/C on. 3-5 minutes will work. A nozzle to increase the outlet pressure of the hose helps. Spray ALL areas of the condenser.
Posted on Jun 25, 2008
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Posted on Jan 02, 2017
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