Question about 1999 Acura 3.5RL

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Where is low pressure port located on 1999 acura

Where is low pressure port located on 1999 acura rl. I need to re-charge the air-condition system

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Look for the large ac line/hose and follow it untill u come to the small service port this is wher u charge the small ac line/hose has the large port this is the high side

Posted on Jun 30, 2009

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The high side is located on the drier infront of the condensor and the low side is in line near the fire wall

Posted on Dec 15, 2012

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When an vehicle's air conditioning system has not been used for several months, the seals within the system start getting dry. I've never worked on a Peugeot 206 or any other peugeot before, that's why I had no idea where the low pressure ac port was. The high pressure ac port is the easiest to locate, because it is in the engine compartment, facing the car from the front, on left side of the radiator. The low pressure ac port is in the engine compartment, facing the car from the front, to the back in the center, under the windshield. The low pressure ac port and the high pressure ac port both have black dust caps. The low pressure ac port is the smaller of the two.

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Not enough info.with the compressor running and the charge line on the low pressure service port( the big line)it should charge. Be sure the compressor is running. If it's not: There is a low pressure switch in the big line. to check it disconnect the 2 wire connector, use a paper clip to jump between the 2 wires. If the compressor runs either the switch is bad or the pressure is not getting into the system at the fill port

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The people who answer questions on this website do it for free.
We have some books, but not an entire library of every book known to man.
My standard answer to this question is - there are two ports on the ac lines or the compressor with plastic caps. One is bigger than the other to help prevent you from hooking up to the wrong side of the compressor.
That's the best I can do since I can't see your car.

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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.
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