It's 40 outside and the clutch on my ac pump keeps cycling on and off. I have the heat on. Why is it doing this? Can't be good for it.

 

I had the same thing happen with my old Mustang and Ranger. In the winter I just unplugged the compressor then plugged it back in once the warmer weather came again. I never had a problem doing it that way and seemed to have better heat as well.

 

Hmm I had a 99 ranger that did that all the time as well I never did anything or thought about. Just thought it was normal did it since the first day I bought it. I bought it brand new.

 

Thats the way they set the AC up. The only settings that the AC doesn't cycle is when it set on floor or panel. I was wondering the same thing when I first got mine. Found the info in my factory manual.

 

Keeps the the seals from drying out.when they dry out they leak. The oil also Will hold refrigerant. When that happens the compressor has work much harder when it starts. If the oil is moved around the refrigerant has to boil off out of the oil.

 

My old 02 F150 did not do this. It running enough to leave condisation puddles in the driveway.

 

Look up your owners manual in here,it will explain it for you. https://www.fleet.ford.com/maintenan...ls/default.asp