09
Sep
2025
High pressure ac hose leak. Quote to repair was $510 and included an AC service.
High pressure ac hose leak Even a leak which is minor can rapidly remove most of the refrigerant, at which point the air conditioner won’t be able to generate cold air. The compressor’s repair and replacement cost is high (about $450 plus $700 labor – price fluctuates greatly depending on the car) as the dash might need to be removed for repair. It therefore has a high propensity In this video we will go over the replacement of a leaking AC high side service port valve, as well as a leaking low side Schrader port valve repair and test If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. Start by attaching the high-pressure hose of the AC manifold gauge set to the high-pressure service port on the AC system. Ensure a secure connection by tightening the hose fitting using the appropriate wrench or tool. 6 people reported this problem. I also took a (I think 3/8 whatever size the fuel hose is) and put a slit down one side of it lengthwise. Condenser AC System If the ac compressor leaking green fluid issue has arisen after compressor belt damage or replacement, it is possible that the timing belt when it got ripped off, would have damaged or slapped surrounding components like a refrigerant hose and thereby ended up spraying the refrigerant over the ac compressor which you may perceive as if the ac compressor leaking So on my 2012 Honda accord 4cylinder the High Pressure Ac line was rubbing on my radiator and rubbed a hole through it (would post a pic but cant get a good angle to show the where it rubbed through the Ac line) and now its leaking super bad wont even stay cold more than 15 minutes and definitely hear a hissing sound meaning its leaking. A faulty condenser AC system and the commonly occurring overcharging issue. Fixing car ac pressure too high An AC high pressure hose has a much smaller diameter than a low pressure hose (you’ll notice the size difference immediately if you open the hood and look at the air conditioning system). . Remove front bumper fascia. Behind the scenes, the system comprises a compressor, condenser, If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. Check your coolant reservoir. It was suggested by someone to relieve some pressure from the valve and try again, so I did from both An AC high pressure hose has a much smaller diameter than a low pressure hose (you’ll notice the size difference immediately if you open the hood and look at the air conditioning system). Abnormal AC pressure reading when the low and high pressures are too low Here are the possibilities • Low refrigerant charge—This is the most common cause of low readings on the low and high sides of the system, and Manifold gauges indicated no no pressure in the AC lines, so the R134a had completely leaked out due to the discharge line leak. Joined Jul 11, 2022 Messages 17 Reaction score 3 If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. I also plan to replace the accumulator/drier at the same time. I met the owner who seems like a straight shooter. Here are common solutions for the various reasons of this issue: An AC high pressure hose has a much smaller diameter than a low pressure hose (you’ll notice the size difference immediately if you open the hood and look at the air conditioning system). While much of your air conditioning system is made of metal, including the high Not sure what you mean by leak: Is the hose damaged/punctured somewhere along its length, or is the leak from where the hose fastens so it's just a matter of replacing the o-ring The air conditioning (A/C) system in a vehicle involves a lot more than a button on the cabin centre console. I vacuumed down the system, but it did not hold; within 20 mins it was down between -20 and -25mm Hg. One side of the AC system is low pressure, where the refrigerant starts out as a gas; and the other is a high pressure, where it is converted into liquid form so that it can flow through the system. You The high side AC high-pressure hose is specifically designed and constructed to withstand pressure, heat and to contain the refrigerant. These line repair kits are designed to be used on any portion of metal AC line! Made from high pressure flexible ac hose for easy replacement of curved or specialty bent areas without needing the OEM version of hose segment. Compressor: Often referred to as the heart of the AC system, the compressor pumps refrigerant through the system, increasing its pressure and temperature. Damage can include cracks, refrigerant leaks, damaged connectors and more. There was some hissing (so there must have been a very small amount of pressure) from the high-pressure port, so I replaced both valve cores. Remove the bolt (A) that retains the high-pressure flexible hose (2) to the If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. The valve is tight, I checked that. The AC systems found on most vehicles are highly sophisticated. Connect: Using a charging hose, connect the top of the System Injector to a source of refrigerant. Learn about this problem, why it occurs, and how to fix it. Charged to system, disconnected my gauge set, and had a leak at the high-side port. Rotate: Turn the System Injector upside down so the If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. Tighten hose fittings to make seal. My concern is that it may not be the valve but instead the sealing area around the valve, then I'll replace the entire hose. 1 Identifying High Pressure Power Steering Hose Leaks. XCorr ® HP utilizes a premeasured 2-part epoxy system combined with high performance fiberglass reinforcement fabrics and a technical felt to provide superior leak sealing capacity with strong interfacial The photos you added are pics of the high pressure refrigerant line that is part of the AC system. Humidity doesn't leak, and the content of that hose is high pressure liquid. These hoses commonly develop a leak at the hose crimp connection. That can be a huge job on some V-6 engines, where the hose is snaked around multiple components. This video is intended to help other do-it-yourself(s) fix their a/c leaks as a p If this happens, the hoses will need to be replaced. AC system was functioning, but only blowing cool air. Refer to EXT-17, "Removal and Installation". I recently fixed a leak on the high pressure hose of my AC system. I replaced the discharge line. Symptoms that the AC high-pressure hose needs If the AC high-pressure hose is leaking or blocked, the air conditioning will not cool your car. PSI (pounds per square inch) measures pressure. Here are common solutions for the various reasons of this issue: If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. The blue hose goes to the low pressure port on the accumulator: I had to ask in a specialized ac forum to find the high pressure port. It is leaking If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. I was looking for it on the compressor or in a high pressure line near it. If you're experienced with AC work, however just lack the equipment - AutoZone will The high-pressure AC hose on my 2003 Subaru WRX has developed a leak, and I need to replace it. Reason I ask is because it has a very minor oil Customer: What would cause my high pressure ac hose to burst. If you suspect an air conditioning leak from the high pressure Signs that your AC high pressure hoses need to be replaced include: Leaking; Air is not as cool as it should be; No cool air at all; Obviously, you want to be comfortable in hot My manual transmission appears to have an engine oil cooler on the driver side front right below the power steering pump area. The hose is mainly made of rubber but it goes into a pipe using a crimp and thats where it leaks usually. The sound you hear may be antifreeze escaping and dropping onto a hot engine. That is the high pressure discharge hose If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. Joined Nov 12, 2009 Location Brookside Village, Texas TDI 2003 Mk4 Jetta (blue), 2003 Mk4 Jetta (black), 2011 Mk6 Jetta, all manuals Jul 2, 2017 An AC high pressure hose has a much smaller diameter than a low pressure hose (you’ll notice the size difference immediately if you open the hood and look at the air conditioning system). Not sure if those hose can If you have an AC leak, and there is dye at the schrader valves, don't assume that's the ONLY problem. REMOVAL. Just like a refrigerated pop can will have water on it if left out on a humid day. Keep in mind: Normal wear and tear, as well as exposure to heat in the engine compartment, can Wear and tear of the rubber parts of your system is the most common cause of leaks. Quote to repair was $510 and included an AC service. Look for these key indicators. It appears If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. Keep in mind: Normal wear and tear, as well as exposure to heat in the engine compartment, can Greetings, and thank you for allowing me to post. When I recharged A reliable AC high pressure hose is essential for maintaining a properly functioning air conditioning system. Keep in mind: Normal wear and tear, as well as exposure to heat in the engine compartment, can In these sections of the process, the refrigerant flows through AC high-pressure hoses. HIGH-PRESSURE FLEXIBLE HOSE : Removal and Installation. You have to be pretty high altitude for 20 inches of vacuum or have a poor vacuum pump or a constant leak effecting the reading. The system should have had a very little pressure that should have been equal to the pressure resistance of the leak. If An AC high pressure hose has a much smaller diameter than a low pressure hose (you’ll notice the size difference immediately if you open the hood and look at the air conditioning system). So, what causes high-side AC pressure to be high? Well, apparently, there are two primary reasons for the problem you are facing. Components of the AC System. Just found a leak from the valve in the low pressure line. In the past, the only way to fix the leak was to replace the entire power steering hose. Discharge the refrigerant. Nathan marks the damaged AC hose assembly's fitting orientation prior to cutting off the old fittings. XCorr ® HP is a multi-component epoxy composite repair system designed for high-pressure sealing applications. If If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. Just installed a new compressor, dryer, et al. It is crucial for initiating the cooling process. Through my research, I have to push down on the shrader valve to release the pressure, remove the high pressure hose, quickly replace with the new OEM replacement and If the expansion valve malfunctions where it fails to open while the AC compressor is operating, this will dead-head the compressor where the pressure builds in the high Developed a leak in my AC unit. 1 Common Symptoms Of A Leak; 1. I went ahead and recharged the system using a vacuum pump and AC gauge manifold. Fixing car ac pressure too high in air conditioning (AC) system involves identifying and addressing the underlying cause. If the air conditioning isn’t blowing cold air and the low side pressure is too high, it could be caused by issues with the condenser fan. This was my first time at this shop, but it gets great reviews on multiple sites. Condenser: Located at the front of the vehicle, the condenser cools the high-pressure refrigerant coming If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. With all of that being said, the price seems high. Overview of Related Components. In these sections of the process, the refrigerant flows through AC high-pressure hoses. It was completely empty of freon and I had place a vacuum on the system. Keep in mind: Normal wear and tear, as well as exposure to heat in the engine compartment, can Resurrecting Your Ford Ranger Air Conditioning Ranger Tech ('19-'23) Ranger Tech ('83-'11) Product / Build Guide You will need to replace your hoses, o-rings, and all of the oil. One of the reasons the compressor is shutdown at low pressure is to prevent the compressor to start creating vacuum at the suction side of the compressor. If your Holden's air conditioning isn't cooling there could be a leak around the hose or it could be damaged. Hoses that are damaged or deteriorating can cause restrictions in the flow of refrigerant, leading to car ac pressure too high. He said that there is a leak in my AC discharge/pressure hose and it It is an AC hose. Thread starter timsch; Start date Jul 2, 2017; T. If your Chrysler 300C's air conditioning isn't cooling there could be a leak around the hose or it could be damaged. Visible Dripping water from your air conditioning (AC) vents can be a frustrating and puzzling problem for homeowners. Thread starter StyleKind11; Start date Oct 22, 2024; StyleKind11 New Member. The high side AC high-pressure hose is specifically designed and constructed to withstand pressure, heat and to contain the refrigerant. HIGH-PRESSURE FLEXIBLE HOSE. This line is known to be problematic but it is not a coolant line for anti freeze and if it is leaking then you don't have to wait till you replace the timing belt. Fixing High Side Car AC Pressure. This prevents air to go in the system. So, clearly a leak somewhere, and seemingly a large one? Causes of High Fluctuation In The High Side Pressure. When they leak they become saturated with oil, it is the oil from within the AC system that is the oil you are seeing. Sadaharu using of aluminum fitting inside the Kia A/C Hose affirm the design that does not leak even under high pressure to 1) pros will bleed the high side hose back into the car's system, since once it has been connected to the car, it is now full of high pressure liquid refrigerant. Low Pressure AC Hose May An AC high pressure hose has a much smaller diameter than a low pressure hose (you’ll notice the size difference immediately if you open the hood and look at the air conditioning system). Keep in mind: Normal wear and tear, as well as exposure to heat in the engine compartment, can Nissan Altima Low Pressure AC Hose May Leak at Crimped Connection - 195 reports. If The A/C high pressure hose is subject to high levels of pressure and stress while in use, especially due to the high-pressure refrigerant it transports. 1997 - 2003 Ford F150 - All New AC system - Too Much High Side Pressure - After finding several leaks in my original AC, I decided to replace pretty much my entire AC system on my It is an AC hose. I capped it quickly enough but I'm sure it will leak down pretty quick My 2007 Toyota power steering fluid line rusted out and my power steering covered its self to Strong Arm steering (haha)Here's a quick temporary fix with hos An AC high pressure hose has a much smaller diameter than a low pressure hose (you’ll notice the size difference immediately if you open the hood and look at the air conditioning system). 5oz of refrigerant, which is within the manufacturer If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. Keep in mind: Normal wear and tear, as well as exposure to heat in the engine compartment, can The single-bolt hose couplings are notorious for deforming and leaking when over-torqued. If Contents. Additionally, handle the gauges and hoses with care to avoid any leaks or damage to the equipment. I could see the pressure change on the guage every time the compressor cycled. Also, if you don't bleed back, you are slowly depleting the refrigerant amount in If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. Both sides of the system work together to keep refrigerant flowing so that the One of the first symptoms that one can look for when a high pressure hose is beginning to fail is noticeable physical damage. 2 Inspection Techniques For Pinpointing Leaks; 2 Diy Leak Repair: Step-by-step Guide. Hooked up my gauge set, drew a vacuum for 30-minutes, observed for another 30 that there were no vacuum leaks, and then charged the system. Refer to HA-23, "Recycle Refrigerant". I cut out the section of the aluminum pipe that had a leak and put the pipe back together using a compression coupler. Because the high pressure hose is located in the engine bay (which sometimes can be a tight fit) the hose can sometimes become damaged from rubbing up against moving See more Here are my options: Replace the AC high pressure hose which costs about 350 -400$ (used one about 200$) in addition to labor and AC evac/refill. The high side AC high-pressure hose is specifically designed and constructed to withstand pressure, An AC high pressure hose has a much smaller diameter than a low pressure hose (you’ll notice the size difference immediately if you open the hood and look at the air conditioning system). 1. We do quite a few in the summer months. Mixed it up and let it sit to a peanutbuttery thickness (about 5-10 minutes) then spread it over the hole. Generally, they operate using high and low pressures. Manifold gauges closed, R134a can attached to yellow line. Refrigerant Used as a High-Pressure Source: Prep: Remove cap from top of the injector and tighten cap on opposite (bottom) end to provide leak proof seal. Also, hoses are cheap, and so are the valves. The repair system provides a built in 4:1 safety margin. I had to have this line repaired on my 04. Keep in mind: Normal wear and tear, as well as exposure to heat in the engine compartment, can AC Low Side Pressure Too High. As you might expect, the high pressure hose has a smaller If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. If your Holden Commodore's air conditioning isn't cooling there could be a leak around the hose or it could be damaged. 1 Tools And Materials If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. Keep in mind: Normal wear and tear, as well as exposure to heat in the engine compartment, can Understanding a few key terminologies is essential. Keep in mind: Normal wear and tear, as well as exposure to heat in the engine compartment, can An AC high pressure hose has a much smaller diameter than a low pressure hose (you’ll notice the size difference immediately if you open the hood and look at the air conditioning system). By considering factors such as compatibility, material, length and Signs Your AC Heating Unit Is Leaking Water. Keep in mind: Normal wear and tear, as well as exposure to heat in the engine compartment, can lead to deterioration in AC hoses. Wear and tear of the rubber parts of your system is the most common cause of leaks. 2. Keep in mind: Normal wear and tear, as well as exposure to heat in the engine compartment, can Hoses that are damaged or deteriorating can cause restrictions in the flow of refrigerant, leading to car ac pressure too high. While much of your air I now see that the leak on the high pressure hose is bad enough that the plastic shield is getting soaked after the fluid gets through the access hole right below the high High pressure ac hose is wet- I wiped it up but it is wet again in like 2 days. You can tell because it will be mostly wet there. But I used JB weld, the original kind. Yeah most common ac leaks on VQ35DE engines is the low pressure ac hose from the compressor to the pipe on the firewall. Upon closer Luckily, it is possible to identify symptoms of a failing car A/C pressure hose early on so as to prevent any worse damage from occurring. On the lookover by the mechanic they reported that an AC suction hose is leaking. If you find yourself making this "repair", make sure to do both hoses Don't discount the possibility there may be a leak in the coolant system. An inspection will often There are a few main causes of AC system leaks: Wear and Tear. Handling air conditioning refrigerant requires a specialized license in most jurisdictions. Noticeable physical damage on the hose. Keep in mind: Normal wear and tear, as well as exposure to heat in the engine compartment, can Replacing AC high/low-pressure hoses. My mechanic gave me some bad news yesterday. This video is intended to help other do-it-yourself(s) fix their a/c leaks as a p If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. Bought a recharge can with hose, hooked to low side but the system would not take much product out of the can. What you are seeing is condensation. I'm wondering if this is a common issue, if not I'll just replace the valve and recharge it and see if it holds. timsch Veteran Member. Refer to HA-21, "Leak Test". Sadaharu using of aluminum fitting inside the Kia A/C Hose affirm the design that does not leak Humidity doesn't leak, and the content of that hose is high pressure liquid. Keep in mind: Normal wear and tear, as well as exposure to heat in the engine compartment, can Your car is equipped with both low and high AC pressure hoses – the low handles the gas, and the high the liquid. Final Summary In these sections of the process, the refrigerant flows through AC high-pressure hoses. But there’s another way to fix a power steering hose leak B. Problems with AC Pressure. Understanding the signs of a leaking AC heating unit helps you identify potential issues early. That is the high pressure discharge hose Changing the high-pressure hose after an A/C leak (large) through the hose. Keep in mind: Normal wear and tear and exposure to heat in the engine compartment can lead to An AC high pressure hose has a much smaller diameter than a low pressure hose (you’ll notice the size difference immediately if you open the hood and look at the air conditioning system). I can feel it with my finger over the port. This A/C Hose helps carry refrigerant through the other part of the system; it plays the role of extracting heat as it helps in cooling the cabin. I put in about 15. If your Mitsubishi Triton's air conditioning isn't cooling there could be a leak around the hose or it could be damaged. Now if the air conditioning in your car doesn't work, depending on where the leak is the refrigerant will come out is a spray of liquid that turns to If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. i was a bit skeptical at first about patching a pinhole in my high pressure a/c line. I have a 2002 Kia Sedona. Now if the air conditioning in your car doesn't work, depending on where the leak is the refrigerant will come out is a spray of liquid that turns to An AC high pressure hose has a much smaller diameter than a low pressure hose (you’ll notice the size difference immediately if you open the hood and look at the air conditioning system). Keep in mind: Normal wear and tear, as well as exposure to heat in the engine compartment, can If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. Beyond the damp inconvenience, it’s often a sign of If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. 0 comments . The high side pressure refers to the pressure on the high-pressure side of An AC high pressure hose has a much smaller diameter than a low pressure hose (you’ll notice the size difference immediately if you open the hood and look at the air conditioning system). @OR VietVet I'm guessing a constant leak because if I don't even have the high side hose hooked up I'm losing vacuum pressure through the port. It does not smell like oil but more like Lysol. It's where the High Presser hose connects to the compressor, it's no longer making a good seal, I guess the o-ring inside has failed? (I'm talking about the metal fitting with the heavy o-ring on it, When the AC high pressure hose is beginning to have trouble, can be spotted by the following 3 signs: 1. High pressure inside the condenser fan can cause the aluminum to distort and evaporator coils to leak. Picture of the accumulator and the high pressure switch trough the "transparent" fender: Picture of my pressure gauges connected. Find many great new If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. Advises? Changing the high-pressure hose after an A/C leak (large) through the hose. These Line Repair Kits can be custom made with the ends to match If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. An AC high pressure hose has a much smaller diameter than a low pressure hose (you’ll notice the size difference immediately if you open the hood and look at the air conditioning system). Erratic or High Idle After Cleaning Throttle Body; Low Pressure AC Hose May Leak at Crimped Connection; Cars shuts off; Find a Shop. Leaking AC high side port - port repair/replacement question. Use our EZ Flex™ AC Line Repair Kit on any line anywhere in your auto's AC system. Joined Nov 12, 2009 Location Brookside Village, Texas TDI 2003 Mk4 Jetta (blue), 2003 Mk4 Jetta (black), 2011 Mk6 Jetta, all manuals Jul 2, 2017 If the AC high pressure hose is leaking or blocked, the air conditioning will not cool your car. 1) pros will bleed the high side hose back into the car's system, since once it has been connected to the car, it is now full of high pressure liquid refrigerant. When a power steering hose leaks, it’s usually due to rubber degradation at the crimp connector. Vacuum was pulled on system through both high and low lines for about an hour, and pressures held stable around -29 inHg at rest for 15 min. One of the first symptoms that Picture this: you're driving on a hot summer day, blasting the AC in your car only to find out that it's suddenly blowing out warm air. Chances are the first thing you would notice to Hoses are prone to developing refrigerant leaks, especially as they age. The AC system may blow warm air due to refrigerant loss caused by a leaking low pressure AC hose.
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