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There is no pressure specification for recharging. Recharging is done by weight -- i.e., the system should have X ounces of refrigerant. Typical operating pressures for most cars would be 20-30 psi on the low side, 125-300 on the high side.

AnswerOn my Grand Cherokee I charge based on temperature of the two aluminum tubes going in/out of the firewall to the evaporator. Charge until these two feel the same temp. This is basically what the manual says to do.
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โˆ™ 2011-09-13 12:10:39
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Q: What pressures do you need to put in to recharge the '97 Jeep Cherokee air conditioner system both high and low sides?
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