hey guys!

i usually have my a/c going all the time, winter and summer because it helps me breathe better. Last two days there has been a hard freeze and I did turn the heater on , but now it’s back in the 30’s and I tried to turn the a/c on and the compressor is not engaging. It’s a new 5 month old OEM compressor and everything was working great until 2 days ago...maybe a frozen sensor? Any help

 

Yes I heard about the latest cold weather snap ( family in Katy ).


Have you tried turning it on once the engine has warmed up?


It could be that the temp sensors around the EVAP core housing are reading ambient temp is below freezing and will inhibit A/C operation to prevent the core from freezing.


Might try to wait till the inside of the car warms up a bit and see what happens....


Do you have a way to scan codes just to check?

 

Do you mean that when you push the A/C button the light on it does not go on or do you mean that the light does go on like it is working, but you can't hear the compressor kicking on? If it is the latter, I am guessing everything is just fine. Wait until it warms up there again and I bet it works just fine.

I just left my AC on all the time, winter and summer. In winter it would help take the moisture out of the air so the windows don't fog up.

 

 

Yep, its probably because of the ambient weather, and the car knows, so it wont allow the A/C to work on low setting.


You can still try to allow the vehicle to warm up inside a bit, and put the temp up a bit, but you may have to wait till the cold snap to finish and warms up a bit.

 

Most A/C compressors won't engage when the ambients is below 35F. Put the car in recirc, hi blower and max heat to see if you A/C will come on. You need to get the interior warm/hot before it would come on.

 

 

And also check that little grill just to the right of the steering wheel that has the interior temp sensor. If you put your ear in it, turn on jey, you will hear a little whirling noise if it's working. I seen it posted a while ago (people were wondering what the sound was). I had never heard it. Checked and no sound. CAREFULLY removed the grill and blew it out with computer compressed air and VOILA! Works now and during the summer the air conditioning worked better.

 

I forgot to mention, when I blew it out, it was like a cat fur ball came out! Never had been cleaned I think.