AC not working?

Hello,

It sounds like the evaporator is icing up due to lack of charge. To confirm here is a guide to help confirm the failure:

https://youtu.be/uZrQCGwXfek

Please run down this guide and report back.

Hi,
As the compressor clutch (?) was making noise too, I just replaced it and reloaded the refrigerant. Haven't had a chance to test it on the freeway (speed limit is only 70 near me). Will review your link if reoccurs on my next road trip. Thanks for the information.

Hmm, it could be overcharged if the compressor start making noise after a bit. Can you please shoot a quick video with your phone so we can hear the noise, that would be great. You can upload it here with your response.

Ken,
Already swapped the compressor w/a lower-mileage used one (seems OEM used is better than aftermarket new), which is working fine - so far. So no noise to record. Thanks

Nice work, we are here to help, please use 2CarPros anytime.

A/C starts working okay after awhile it stops blowing cold air. turn the system off for about five minutes. Turn the system on A/C starts cooling again. Also, the switch light for in and outside air will not go off. If you do have the switch set for outside air and driving the light will come on. Cannot turn light off.

Hello,

This sounds like you have a compressor clutch that is going out. When the system is blowing warm air check the front of the compressor to see if the clutch is engaged. If not check for power at the compressor.

Here are a couple of guides that will help you confirm power or not:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

and

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak


Please run this test and get back to us so we can continue helping you.

Cheers, Ken

All of a sudden my vents started blowing hot air, despite having the AC on and the thermostat turned all the way to cold. I thought it was a bad engine thermostat and, while troubleshooting that problem, found that the water pump had failed. I have replaced the water pump, thermostat and "flushed & filled" the cooling system - but the vents are still blowing hot air. The AC/heat fan motor is working properly, the air can be directed to the various outlets (floor, dash, defroster and all mixes) as normal, the AC switch is working and the compressor is operating properly. Any ideas??

Something's going on with the 'blend door' or the actuator for that door. This door is inside the evaporator case but the actuator will be mounted to the outside of the case. The control (hot to cold knob) is what controls the actuator. Either the control knob is not sending the info to the actuator or the actuator itself isn't working and it's stuck in the HOT position.

Thought the a/c air flow was not cold, cool, but not cold. Added some ac pro air flow ,temp. maybe worst but I do feel the air flow is cold at times and then warms up and then back to warm. Get it. I did look at the ac compressor and the clutch does cycle on and off, some times 20 to 30 sec. some time little longer. Does the cycle on and off relate to air temp. being cold to cool??? I want to say no but can look a little harder. I know you get this all the time but I can pay if I heard some good news.

go to "you tube"

type in "a/c pro recharge " in the search box

this may take a little time....it may be helpful

look at the 2nd - 5th videos

maybe you missed something?

if trying these methods just-ain't-a-workin'......i would suggest seeking more professional help.......you don't wanna make things worse

the medic

The air conditioner blow in cold and hot air intermitently

it may be your temp servo is n't working right but have the a/c performance tested as it may be low on Freon or it's icing which requires evacuation . as well as a new drier in system.