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Your A/C system will have two service ports, there isn't any "recharge" ports. You add refrigerant to the LOW side only. Prior to adding any refrigerant, you need to check the system pressures with a manifold gauge set. If the system has enough charge and there is another issue, adding refrigerant can make for worse problems. Automotive A/C is best left to the right person with the proper equipment to service them. If you follow the lines from the compressor, the LOW side will be the smaller diameter of the two service ports.
The AC is charged with R134 refrigerant through the low pressure side of the system, the charging port is on the Accumulator/Receiver Dryer, this is a round canister under the hood on the drivers side near the rear of the engine bay. Below is a picture of the Accumulator so you can ID it.
Hi, determine if your car uses R134 or R12 refrigerant. You will notice screw type connectors on the both the High Pressure Side and Low Pressure Side lines in models using R12 refrigerant. R134 compatible models have quick connect valves on both sides. Models made before 1995 may use the old R12 refrigerant. If this is the case, you must have your Chrysler's air conditioning system retrofitted to use R134 refrigerant. Mixing R12 and R134 refrigerants is dangerous and may cause damage to your vehicle.
Check your air conditioning system pressure using an automotive air conditioning pressure gauge. Keep in mind that in order to get an accurate reading, the air conditioner has be turned on the coldest setting with maximum blowing power.
Remove the Low Pressure Side port valve cap and set it aside. The location of the port varies, but it is usually in front of the engine block. Attach the refill hose to the port on the Low Pressure Side of the air conditioning system. The Low Pressure Side port is smaller the High Pressure Side port. Because the ports are different sizes, the refill kit hose should fit only on the Low Pressure Side port. Additionally, the High Pressure Side port will usually have a red cap or be marked with an H or the word High
Allow the air conditioner to **** the refrigerant out of the can by slowly turning the valve on the refill kit hose. Pay attention to the way you hold the can. Most kits will have you hold the can upright when you recharge the air conditioning system. It may take as long as 10 minutes to empty a single can.
Turn the valve to the off position and remove the refill hose from the port. Recap the port before closing the hood.
Let the air conditioner stay on for at least 30 minutes. This allows the refrigerant to move throughout the entire system.
This job requires special tools and special training. If you lack either, you risk SERIOUS personal injury. Injury comes VERY EASILY! You need to address oil levels, proper and legal refrigerant recovery, system evacuation, and recharge. You were planning to also replace the receiver/dryer, correct? It also needs the oil in it measured and incorporated into the amount of oil (in %) that would need to be added. FAILURE to address these and other issues will guarantee premature system failure and likely compressor damage. Take this job to a qualified shop.
the first check to perform is to see if the compressor is cutting on.... you should be able to hear the engine struggle a bit when the ac is first cut on, or watch the clutch (built into the compressor pulley) begin to spin when the AC is switched on. If it does cut on, likely causes include refrigerant leak or internal system failure. If the compressor is not cutting on, it is a control issue, and some electrical tests must be performed.
first, locate the bigger hose that comes out of your compressor that goes to your firewall towards the evaporator, that is the suction hose. look for some fittings that comes out of that pipe and covered by a plastic cap. that is the pressure port where you can add freon.