Skip the auto shop - Our mechanics make house calls

Q: AC blowing warm air, ac compressor bad?

asked by on

My AC has recently began to blow warm air. I recently just had it serviced with new refridgerent about 2 weeks ago, it worked great for about a week, but now it is not blowing cold air anymore. This is the original ac compressor, have never had any issues before.

My car has 190000 miles.
My car has an automatic transmission.

A: There are several issues that can cause you...

There are several issues that can cause your A/C to blow warm air. Although the compressor is on that list, one of the most common causes of warm air blowing from the A/C is a bad or failing A/C high pressure hose. The high pressure hose increases and decreases A/C pressure during different driving conditions. If the warm air is coming from A/C vents more frequently when you are at idle, this could be the issue.

There could be other issues that are causing this problem which is why it’s a good idea to have a local ASE certified mechanic help you properly diagnose the problem with your A/C. It will save you a lot of frustration and ensure the A/C is fixed sooner rather than later.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Truck stuck in reverse

Hello. This is a known concern and GM has issued TSB 01-07-30-002E. It lists the symptoms you are experiencing and has a list of some testing to be performed leading to a wiring concern or a faulty ignition switch. You...

Q: AC is not blowing cold air - 2010 Buick Enclave

Hello and thank you for contacting YourMechanic. The noise you are hearing is the serpentine belt burning on the A/C clutch pulley from the A/C compressor being locked up. Open the hood and with a flashlight look at the A/C...

Q: If I put my car in drive and push on the gas it wont shift to second unless I let off the gas. If I drive it in overdrive it shift

Hello, the concern you have I strongly advise not to drive. The issue needs to be addressed, the vehicle will become inoperable. The automatic transmission has 3 systems; electronic, hydraulic, and mechanical. What describe could be an internal mechanical failure...

Related articles

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 Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.