Richard Ristow has written for journals, newspapers and websites since 2002. You are using an out of date browser. I have seen numerous times where it plugged up the orifice tube. It also saves time and money by using the correct tools. It can be found inside a vehicle's engine compartment on the air conditioner's metal pipes. Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications. Never charge through the high side port. Topping off the charge level with a proper evac and recharge will fix it short term, but once enough refrigerant is lost as a result of the leak the performance will diminish. thanks. The low side service port is the only port to which the AC Avalanche coupler will connect. Glad it worked out for you im SOL will be doing this myself. There is a H port and an L port. Quote:Low side should be between evaporator and compressor, and high side should be between condenser and evaporator if you can follow either one. When recharging with AC Avalanche refrigerant, for safety, you will charge through the low side service port. Mixing the two will cause damage; R12 should never be added to a R134a system. As an Amazon Associate, Mazdas247 earns from qualifying purchases. I hadn't really noticed the issue until it started getting warmer out. could anyone confirm that's the low pressure port? The low side service port is usually located between the AC compressor and evaporator. To make things easier, this is the only port to which the Avalanche quick coupler will connect. I've been using it a coupla years without recharge, so there' s a good chance it will fail soon. I can't believe 2012 model made it so difficult to identify what i am looking for. JavaScript is disabled. never heard of AC pulling codes even with evap going bad.. Also, the port caps usually will have an "L" or an "H" on them. The refrigerant evaporates as a result of low pressure due to an inadequate charge and the heat dissipation is complete at that time, resulting in a loss of cooling ability. I go to France on holiday in a weeks time so I want to give it a slight top up using a recharge kit I already own before I go, to avoid a disappointing journey. Privacy Statement - is the one with blue circle with black cap on? Or sniffed it out. Well, its usually located between the compressor and the evaporator on the larger diameter a/c line. Have you pulled codes? I just had my AC issues resolved. On some vehicles, the service port is directly on the compressor. Where is the low pressure port of the air conditioning located? It is driven by the fan belt near the radiator at the front of the vehicle. Is it something that can be done by owners on the Mk II? A low-side service port is part of an automobile's air conditioning system. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! Can anyone point out the location of the low pressure port that allows the air conditioning to be topped up? Thanks, that's the thing. The refrigerant enters the evaporator on the passengers side and exits on the drivers side. Thanks for you reply. could this be a quid pro quo to get extra pressure on N. Korea? I see one with "H" easily. Every auto air conditioning system has two service ports: one on the high pressure and one on the low pressure side. This is one area it pays to have a technician that is good at AC to diagnose your car. The low side line of the system will have a larger diameter metal pipe than the high-side. The evaporator is located near the firewall behind the dash, and directly under the windshield. Next, follow the line from the compressor towards the evaporator. Terms of Service - now im sure my evap is probably leaking but before i try that im just going to charge it to see if it will hold up but i dont know where the low pressure recharge point. https://s32.postimg.org/lfb98p5xx/20160725_231036.jpg, http://acprocold.com/blog/car-tipstricks/find-low-pressure-ac-port-car/. To summarize: Copyright Avalanche, a division of Blaster Holdings, Three Common Problems with Car AC Systems. Anyone delete DRL relay on the 2022 Turbo Signature? Every A/C System has two service ports: A high side and a low side. JavaScript is disabled. These pipes will connect a compressor to a drier and evaporator. not sure if the flaps your talking about is the vents or somewhere inside and if it is i have no clue where it it. Well the low pressure port is always located on the larger diameter line tubing and usually will have a black or blue cap. Check out Esquires engine pic in the Photos section and you can see the LP port. Advertising - The low-side port will be on one of the air conditioner's pipes and it often uses a black or blue dust cap. The low side service port is usually in this line and will have a black or blue plastic cap that needs to be removed. '865kt. Where is the low pressure AC port an 95.5 S6? The system only has one circuit so loss of refrigerant would mean no cold air on either side My guess is that one of the flaps are not working! correct equipment will pull codes on your HVAC system, ie servo motor, sensor faults ect. The port is intended for recharging the Freon levels within the air conditioning system. This does not sound like a refrigerant issue though. I took it in to the dealer and they found the freon to be 14oz low. The low-side port, like the name suggests, is lower on the pipes towards the front of the engine. Definitely a happy camper with the florida summer coming! Location of 2012 Mazda5 OEM Alarm module? The first step in recharging your system is to locate the low side service port (or low-pressure port). After which I will get it done at dealers when it really needs it. But it seems you have it figured out. You can reach it without removing anything. Here is what a typical auto a/c compressor looks like: If you are having trouble identifying your compressor, you might want to try visiting this page and entering your vehicle information to see a list of compatible compressors for your engine: http://www.autozone.com/cooling-heating-and-climate-control/a-c-compressor?filterByKeyWord=compressor&fromString=search&isIgnoreVehicle=false&newYmme=true. A forum community dedicated to Ford Escape owners and enthusiasts. Thanks mazdadude. What Type of Transmission Fluid Does a How to Find the Value of a Used Utility car heater vent image by robert mobley from, Copyright 2022 Leaf Group Ltd. / Leaf Group Media, US EPA: Recharging Your Car's Air Conditioner with Refrigerant, "Popular Mechanics Complete Car Care Manual" The Editors of Popular Mechanics; Hearst Publishing; 2008. But here is a link to another site that shows you how to determine thanks mazdadude. Thanks for your help. He also holds a Master of Fine Arts from the University of North Carolina at Wilmington and has managed an automotive department at WalMart. The best way to check your AC is to hook up a set of gauges to your high and low side port and watch what the pressures are. His work has appeared in "2009 Nebula Showcase" and elsewhere. The stuff they sell in the parts stores with only a low pressure gauge on will not tell you anything. i went fill up the 143a into that black port, and now i have cold air coming out!!! ^i am assuming the smell of cow manure for the leak is when you turn ac on, correct? First, find the compressor. i didn't have this problem with other cars. for those who pressure test ; ). With two technicians they pulled the dash, swapped it out, and had the car ready for me in just 6 hours. hmmm now im confused on where to look at the flaps.. all the vents are blowing air assuming flaps are working? He is a winner of the Science Fiction Poetry Association's Rhysling Award and he edits poetry for Belfire Press. I can't think of what else it could be? Driver's side may be different, The following errors occurred with your submission, Discussion forum for the Audi Q7 MKII built from 2016 -, A/C Recharge Regas low pressure port location, The New Marketplace (All new FS items go in here), Vehicles For Sale - Archive (NO NEW POSTS HERE), Parts For Sale - Archive (NO NEW POSTS HERE), Want To Buy - Archive (NO NEW POSTS HERE). Very frustrating. If the passenger side blows cold your evaporator is not leaking! By the way never buy the freon with the stop leak in it. The Fora platform includes forum software by XenForo, VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. My CPO warranty covered all the costs, aside from a $50 deductible. i can't find a cap with "L" on it any where. Both ports are located on the air conditioner's metal pipes. The SA advised it would have been roughly $2300 job otherwise. For a better experience, please enable JavaScript in your browser before proceeding. Noted. not when you turn off the ac. Archive - Anyone know the location of the port? For a better experience, please enable JavaScript in your browser before proceeding. Contact Us - Now that you know where your low-side service port is located, you can begin recharging your systems refrigerant according to the instructions on the packaging. Everything went back together perfectly, no rattles or anything. I think the poster may be in Europe/UK? I just took a photo of my car. Do Not Sell My Personal Information -, By logging into your account, you agree to our. They did a nitrogen pressure test, after 20 mins they saw a pressure drop then traced the leak to the evaporator. Cookie Policy - Your LP port is directly under the driver side cabin filter. Vehicle air conditioners use either R12 or R134a Freon, depending on their year of manufacture. While the low-side port is intended for recharging Freon, the high-side port is used for maintaining an air conditioner's internal pressure. Vehicles must use only one type of Freon. Generally speaking, the more accessible fitting is the Low-side. only cap which i can think of from the picture is the one i circled with red. The Environmental Protection agency has phased out R12, and vehicles manufactured 1984 and later are required to use R134a. With as much complaining techs that work in AC shops do about recharging with r1234yf, and how long it takes a dedicated machine to do it, I am not sure how DIY it is, but yes, there are small cans of it and self charging hoses, not seen any one talking about how they work. It may not display this or other websites correctly. What type of refrigerant does my car need? I'll provide an update. Look towards the center of the engine to find the air conditioner's metal pipes. Driver side was much warmer than the passenger side, and on hotter days it would just blow warm air on both sides. You have the right one. Open and prop the hood over the automobile's engine compartment. The passengers side can be cold/cool and the the drivers side warm due to the design of the evaporator. Find a shop/dealer that is good at the job, don't go for the cheapest route. I may have to double check it. That will help you when feeling for it. This is a major disassembly task that needs to be done properly! The low side service port will have a black or blue plastic cap that needs to be removed. AC is now working better than ever, comes on ice cold very quickly and I have to bump it up to 75 to keep it from freezing me out. I didn't see no "L" on the cap.
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