Q: AC manifold gauges show no pressure on high or low side.

asked by on

My auto ac went from blowing cold air to zero over night, maybe quicker. Then the gauges show no pressure on high or low side. The gauges worked the last time I used them. Assuming my AC system pressure went from working fine to zero, what would the best guess be for the culprit in this case?

thanks .......

The a/c system would need to be pressure tested to check to see if the condenser got damaged and leaked all the refrigerant out or a component like the compressor front seal failed. Have a mechanic like one from YourMechanic come and pressurize the system and isolate the leak.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. AC manifold gauges show no pressure on high or low side.

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: Q: No cold air from AC

If the AC is only blowing hot air then most of the time it is because the AC compressor is not turning on. The compressor will not turn on for a number of reasons, but the most common is low...

Q: water is leaking from my radiator. I have to put antifreeze every other day. I put stop leak but it did not work and my A/C stopped working

If you are losing coolant from your radiator, the radiator will need to be replaced in order to stop the leak. When your coolant level drops past a certain point, the air conditioning will no longer work because the engine...

Q: Rattling noise AC heater

Hey there, thanks for writing in about your 2010 Lexus HS250h. Even though you said the blower motor looks okay, my guess is that it probably has a bad bearing, which is causing the noise. The only other thing I...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...