Sanden compressor swap worth it?

it sounds like you might not be full of freon. I know when I thought my T600 was full it acted the same way.

 

sounds like a charge problem. throw a set of gauges on it and check your pressures

 

This has been an ongoing problem since I bought the truck a little over a year ago. I've had the system down a few times changing parts and at least according to the gauges it's always back full.

 

That was the problem I had on my Mack, the previous owner had a dog and it was caked with fur.

 

Since it was a Mack, maybe it came from the Factory like that.........with dog hair.