Skip the auto shop - Our mechanics make house calls

How Long Does an AC Low Pressure Hose Last?

low pressure hose

Your car’s air conditioning system consists of a number of components, including an evaporator, condenser, dryer and compressor. The system itself works by means of a refrigerant, which is carried to, and taken away from, the various components, by means of hoses. The low pressure hoses take the refrigerant away from the components, and, as you can tell from the name, sustain less pressure during operation than the high pressure hoses, which deliver the refrigerant.

Usually, you can expect your AC hoses to last a very long time, perhaps even the life of your vehicle. That said, keep in mind that they are made from rubber, and as such are vulnerable to weakening and cracking with age. This process can be accelerated by the presence of hot coolant. As a general rule of thumb, you can expect your AC low pressure hoses to last about eight years, and likely no more than ten. And the older they get, the more likely they are to leak. If they do, your engine can overheat, and you could end up with expensive repairs.

Signs that your AC low pressure hoses may need to be replaced include:

  • Air conditioning not working as well as it should
  • Air conditioning not working at all

If you suspect that your AC low pressure hoses have been compromised, you should have them checked by a professional mechanic. Ignoring symptoms that could cause your engine to overheat is ill-advised, so get a diagnosis, and if necessary, have your AC low pressure hoses replaced.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

P0222 OBD-II Trouble Code: Throttle/Pedal Position Switch/Sensor B Circuit Low Input
P0222 code definition Throttle/Pedal Position Switch/Sensor B Circuit Low Input What the P0222 code means The manufacturer specifies a range of acceptable voltage to be produced from the throttle position...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...


Related questions

Q: How to remove the front control module on a 2013 MKS

Hi there. The front control module is held in with a console cover that is snapped in place. Very careful, remove the center console with a small pick or screwdriver. The cover will pop out of the dash. Then the...

Q: Is There a Difference Between a Car's Upper and Lower Radiator Hoses?

The difference between the upper and lower radiator hoses is where on the engine they are used. They are made of the same material (EPDM), so they both meet the requirements of thermal stability, pressurization, and life expectancy. The upper...

Q: air conditioning doesn't work. I've put on a new compressor and orifice tube. the computer says something about a evaporator core

I would need a little more information on the actual problem. Is the compressor not coming on? It may have a cycling switch not turning on the compressor. For this problem, the system will need to be tested with gauges,...