Skip the auto shop - Our mechanics make house calls

Q: My ac is making noise and not blowing out air...how much to replace compressor and flush system?

asked by on

Bessie runs great but ac not working . Put refrigerant 134 to 35 psi..she blew cold for about 5 min then she started making noise and air turned warm. Both fans working.

A: In order to fully diagnose your ac system, ...

In order to fully diagnose your ac system, both the high and low side pressures will need to be looked at. It sounds like you have a leak in the system. If you used refrigerant with leak detector, you can use a black light to locate the leak. It will glow green when a blacklight is used. Before following through with a repair, I recommend having a certified technician, like one from YourMechanic, diagnose the AC system first. They can also replace the compressor and flush the system if necessary.

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: I have a 1995 Isuzu rodeo .

The engine hesitation could be related to the causes of the high idle or could have a separate cause such as faulty oxygen sensors or a faulty throttle position sensor. I suggest you resolve the high idle first because it...

Q: My car is over heating

Overheating can be caused by a number of things such as low coolant levels, a faulty thermostat, a clogged radiator or a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant...

Q: fans, air conditoning, electrical wiring

The condenser fan is a separate circuit from the radiator fan. It sounds like the radiator fan is being controlled properly by the powertrain control module as the fan is activated by the engine temperature. The condenser fan is...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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.