Symptoms of a Bad or Failing AC High Pressure Hose

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Cost of Replacing a Bad or Failing AC High Pressure Hose

Check for noticeable damages on the hose or any leaking issues. A failing AC high pressure hose may cause your entire AC system to fail. Our certified technicians can come to you and diagnose the problem. You will receive a $30 credit towards any follow-up repairs that result from the diagnostic. Following are example prices for Car AC High Pressure Hose Replacement. Click on the button below to get an upfront quote for your car.

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2005 GMC Savana 3500 $756 $209.79 $546.00 27% $1048.29
2009 Toyota Land Cruiser $919 $723.33 $196.00 10% $1024.33
2006 Mercury Mariner $463 $294.56 $168.00 16% $552.56
2004 BMW X3 $420 $231.49 $189.00 19% $521.74
2008 Infiniti QX56 $588 $245.44 $343.00 23% $772.19
2007 Ford Mustang $471 $338.34 $133.00 13% $542.59
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How to Diagnose a Bad or Failing AC High Pressure Hose?

High pressure hose

The AC systems found on most vehicles are highly sophisticated. Generally, they operate using high and low pressures. 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. Both sides of the system work together to keep refrigerant flowing so that the system can function properly. It is the job of the AC high pressure hose to carry the refrigerant from the compressor outlet to the receiver/drier so that it can be cooled and used to produce cold air for the cabin.

As the AC high pressure hose carries high pressure refrigerant, it is subject to high levels of stress when in use. Just like any other component, it can fail and cause problems for the rest of the system. When the AC high pressure hose is beginning to have trouble, it will usually display a few symptoms that can alert the driver that it requires attention.

1. Noticeable physical damage on hose

One of the first symptoms that one can look for when a high pressure hose is beginning to fail is noticeable physical damage. 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 engine components or from heat radiating off the engine. Any abrasions, loose threads, or signs of tearing anywhere on the hose will indicate that it has sustained damage and needs to be replaced.

2. Leaking around the hose

Because the refrigerant flowing through the hose is under very high pressure, it is not uncommon for the hoses to eventually develop leaks later on in their service life. A hose that has begun to leak, even if it is a minor leak, can quickly empty the system of refrigerant, which will leave the AC system unable to produce cold air. Usually a leak will display visual cues, such as noticeable traces of refrigerant dripping or leaking from the hose, or along the fittings. If you notice any signs of leakage, replace the hose as soon as possible to prevent any damage from possibly occurring to the rest of the system.

3. AC not cooling

Another symptom that the AC high pressure hose has failed is the AC system not being able to produce any cold air. Since the AC high pressure hose carries refrigerant to the accumulator so that it can be liquefied for use in the system, if there is a problem with the hose, the system will be unable to produce cold air for the cabin.

Because the AC high pressure hose plays such a vital role to the proper operation of an AC system, any problems with it can quickly translate to the rest of the system. If you suspect that your AC high pressure hose is failing or is defective, have it diagnosed by a professional technician, such as one from YourMechanic. If necessary, they will be able to replace your AC high pressure hose so that the AC system can continue to operate properly.

Damage
air conditioning
hoses
leaks

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YourMechanic Car AC High Pressure Hose Replacement Service

Average Rating

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Number of Reviews

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Jay

34 years of experience
566 reviews
Jay
34 years of experience
Great!
2013 CHEVROLET SONIC - AC HIGH PRESSURE HOSE - RANCHO CUCAMONGA, CALIFORNIA

Peter

33 years of experience
346 reviews
Peter
33 years of experience
Very friendly and knowledgeable. It was a great experience. Would recommend him and use him again!
2013 TOYOTA PRIUS V - AC HIGH PRESSURE HOSE - MESA, ARIZONA

Peter

40 years of experience
1059 reviews
Peter
40 years of experience
I've used Your Mechanic a few times now. I only want Peter to work on my cars. He takes the time to properly diagnose the problem and actually shows me what the issue is. He explains what's going on and I really appreciate that. He's always on-time too! (actually, early.)
2000 PONTIAC SUNFIRE - AC HIGH PRESSURE HOSE - SURPRISE, ARIZONA

Duane

22 years of experience
323 reviews
Duane
22 years of experience
Been using him for a while and always does a good job.
2013 PORSCHE 911 - AC HIGH PRESSURE HOSE - OCEANSIDE, CALIFORNIA

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