Skip the auto shop - Our mechanics make house calls

Q: Ac temp only gets to 56 degrees

asked by on

The air temperature at the vents in my car is only 56 to 58 degrees my manifold gauges are reading 32 on the low side and almost 225 on the high side. The car has a new evaporator, new expansion valve, new condenser and dryer. The system was evacuated and recharged but I am only getting the 56 to 58 degrees could I have gotten a bad expansion valve?

A: The pressures look good but a little high o...

The pressures look good but a little high on both the low and high side. This would all depend on outside temperature and humidity outside. When you want to see how cold your A/C can get out of the vents, then you should be running the blower on low speed with the setting on re-circulation mode. Let the vehicle run this way for about 10 to 15 minutes with all doors and windows closed.

This will get the interior to its coolest. Then look at the pressures and temperature. You should get a temperature of about 45 out of the vents for the pressure to be about 25 low and 190 high. If not and your pressures are higher, then you may be a little overcharged and should take a small amount of refrigerant out. If you would like to have this checked, a certified technician from YourMechanic can come to your car's location to inspect your AC and let you know if any adjustments should be made.

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

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...
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...
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.