Automotive Air Conditioning Information Forum

John,Tim and others, thanks for the reply and info. it is a sierra 1500 5.3l engine. I just asked at NAPA for a orfice tube for my truck, did not know there were diff sizes. I will check this. also the ot I pulled out did not have any debris on it and was not aware of a possible ot at the output of ...

hello, I have a 04 gmc sierra, the ac compressor is cycling on and off about every 5 seconds. at first it was cycling and the high side was going to 400psi and cycling down. I removed some r134a and now i am cycling 50 to 75 low side and 75 to 100 high side. it is about 75deg outside. I have posted ...

Thanks for the reply, I did not know to check to make sure the orfice tube is the correct one. I just ask for one at NAPA. It is installed correct and the old one did not have any debris. I am suspicious of the amt of oil in the system though. is there a way to remove the oil without removing ...

Hello, i am new to the forum. I have a 04 sierra that i am having issues with. Several weeks back i pulled out all the 134a changed the orfice tube with a new one, pulled a vacuum and added 134a back in to proper amt. (i was having issues before and hoped this would fix it). when i observed the ...