A/C was working great and then suddenly stopped.Low pressure side is around 40psi until the clutch kicks in and then drops to around 5psi.Clutch cycles on and off every few seconds.Low pressure line gets cold when I bypass the low pressure sensor but still doesn't cool.No moisture dripping from the condenser either.Any help would be appreciated.Thanks.

Also the blower motor resistor was changed right before this issue came up.


You lost your charge. The low side should read about 30psi when ac is running. You'll need to look for a leak or have it recharged. Also alot of the newer vehicles have dye in the ac system from the factory to help look for leaks.

  • I do have refrigerant I could add.I'm not able to test the high pressure side pressure.Should I add some with the ac on and running until I get to 30psi? – Neil Jul 31 '17 at 0:45
  • Yeah, i am guessing its a r134a system and you have a can of freon and hose/gauge to install from the local parts house. There should be a tag under the hood somewhere thay tells the ac system capacity. Just follow the instructions. If this is the case. – cano Jul 31 '17 at 1:00
  • I will give it a shot tomorrow.Just keep reading about people overcharging the system.I don't want to be one of them. – Neil Jul 31 '17 at 1:20

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