Skip the auto shop - Our mechanics make house calls

Q: AC not cooling.

asked by on

My AC is not cooling. The dealer told me it is a leak.

A: Most of the time when the AC stops working,...

Most of the time when the AC stops working, it is because of a leak. The refrigerant system is a sealed system that is under pressure. If the pressure sensors detect the system is low, it will keep the compressor from starting to avoid damaging it. A technician will have the equipment necessary to find the leak. The system will need to be recharged to the proper level. Then an electronic leak detector or ultraviolet dye will be used to find the leak. Leaks can be as simple as an o-ring at a hose connection or as complex as an evaporator core that requires dash removal for replacement. Finding the leak is the fist step.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Window stuck down

There could be several issues causing this. One of the most common is the window regulator itself. Other possibilities would be the window motor, or the window switch. The door panel will need to be removed to access the window...

Q: Sloshing noise on startup

The first thing to do is check your coolant and see if you're low on fluid. When you are low on coolant, air bubbles are created and these air bubbles will slosh through the dash because the heater core is...

Q: Rough idle and stalling with exhaust popping

The first thing to do is to get rid of the oil type air filter. This oil bath type filter can cause the mass air flow to be contaminated with the oil from the filter you are using. You should...

Related articles

How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...