Question about 1996 BMW 318

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Which of the 2 refrigerant ports is the low side and did it come with R134?

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  • rushthrutime Jul 21, 2008

    Much appreciated AMS. I am guessing the evap is back towards the dash. Thanks

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The low side is the one that goes to the evaporator. Sometimes is marked with L for low or an S for suction side. If the ports are bi and has inside threads is certain R134.

Posted on Jul 20, 2008

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1 Answer

Can't seem to find the low port on my 1985 Buick skylark I bought the adapter for the AC since it's an r-12 any help ?


That should be the right port. Low side is the thicker hose and lines.
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Are you using an R134 hose connector ?

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1 Answer

I want to recharge the ac but cant find the input fitting?


Go to autozone and ask for a can of: R134-A. Make sure to get a can with hoses and a gauge. Don't let the pressure build up to much. make sure you hook it into the right connection. Its the metal hoses right by the radiator. -------------- Its usally a pretty easy job, especially if you get one of the kits with the gauge in it. They can be found at autozone, etc. The connectors are pretty smartly done. This thing will only connect to a low pressure port on your car. You are looking for a blue or gray cap on one of the A/C lines with an "L" on it. ------------------ Locate the Low Pressure Side service port. It is usually on the driver's side of beside the engine block. Remove the black cap marked L. Look at the connector type to determine if your car uses R134 refrigerant. The R134 compatible systems have a quick connect valve on the Low Pressure Side. ----------------- Hope this helps.Thanks.




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2 Answers

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2 Answers

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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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Aug 03, 2010 | 2006 Chrysler Town & Country

2 Answers

Where do i add r134 on the 99 buick regal , I see to nozzles under the hood one to the right boy wheel shock and the other back center closr to firewall


Closer to firewall is where your low side port should be. Your R134 filling hose quick connect adapter will ONLY fit on the proper "low side" connector port at that location because it is a different size than the high pressure port. You can't put it on the wrong port and get it to fit.

Jul 25, 2010 | 1999 Buick Regal

2 Answers

FACING THE CAR, WHERE IS THE EXACT LOCATION TO ADD FREON TO A 1997 CHEVY MALIBU. WE FOUND A RED CAP BUT UNDERSTAND THIS IS NOT WHERE YOU SHOULD ADD. HELP .....


The low pressure refrigerant port is near the firewall2.gif, just after the receiver/dryer. You'll need a gauge and preferably an ac test manifold. You can use the manifold to add refrigerant up to the point where the system maintains the pressure level in the green area. There should be a blue cap on the low pressure valve.
I believe your malibu take's 12 ounce's of R134, don't over charger the system. You'll blow O rings and worst kill the A/C compressor.
Good luck and hope this helps. Here is a link for A/C recharging. http://www.geocities.com/vantaray/air_conditioning.htm

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2 Answers

Where do you recharge the air cant find theplace to hook up the refill refrigerant


U SHOULD NEVER HAVE TO RECHARGE, IF YOU DO U HAVE A LEAK AND THAT NEEDS TO BE REPAIRED 1ST BEFORE A RECHARGE, THE SERVICE RECHARGE PORT IS ON THE INSIDE OF THE OF THE PASSENGER FRONT FENDER, U MUST GET AT IT FROM UNDER THE CAR, IT IS ON THE ACCUMULATOR AND NOT VISIABLE, U MUST FELL IT, VERY HARD TO GET AT, GO TO LINK BELOW FOR PICTURE

http://www.aircondition.com/tech/questions/5/

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1 Answer

Air conditioner not cool


Look at the Low Pressure Side port connector to determine if the system is compatible with R134 refrigerant. If you see quick connect valves, it is R134 compatible and you can continue with the recharge. If you see screw on valves, the system takes R12. Mixing the two may cause serious damage to the system. Let me know if you have any further questions.


Benjamin

Apr 26, 2009 | 2005 Hyundai Sonata

1 Answer

Have 1990 Plymouth Voyager 3.0 6 cyl A/C cluthch froze and still has r-12 refrigerant. What is easiest and best repair


Replace compressor and convert to R134 refrigerant.The conversion kit is relatively inexpensive,as the main thing required are the conversion fittings for the high and low ports in the system.Have a shop capture the R12 refrigerant,and flush the system,a new receiver drier assembly too.Pull a vacuum,and charge with R134.

Jul 26, 2008 | Plymouth Voyager Cars & Trucks

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