Skip the auto shop - Our mechanics make house calls

Q: Is my AC compressor good or bad?

asked by on

I put 2 can of r134a into low pressure to see if compressor clutch is turning nothing no turn and no pressure on gage

Does it mean compressor is bad or connection to clutch is bad

My car has 125000 miles.
My car has an automatic transmission.

A: You must have a massive leak in the system ...

You must have a massive leak in the system if you put in two cans and still nothing registers on the gauges. The entire system should be full if you put in two cans. For this issue I would suggest having a certified technician, like one from YourMechanic, with the correct gauges and leak test equipment to diagnose your A/C for leaks. If you have no refrigerant in the system the compressor will not turn on at all, this is why you should have the system leak checked.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: If cylinder 3 misfires is that a bad thing?

Hi there. A misfiring cylinder can be expensive if allowed to continue. The catalytic converter can be damaged. If the cylinder is misfiring, the coil, wire, and/or spark plug could be the cause. First swap the spark plug between cylinder...

Q: Exhaust leak

Hello! You may have a leaking gasket or broken piping. I suggest having the exhaust system evaluated by a technician. Some exhaust issues can be fixed with standard tools and equipment. But in most cases exhaust work has do be...

Q: Why Is My AC Blowing Warm Air?

There are quite a few reasons an A/C system will cease to provide you with cold air. Air conditioning systems are one of the more complex systems on a passenger vehicle. Without getting into to all the complexities and science...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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.