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Like many other threads I was having poor AC cooling, it was low I charged it with AC pro PAG 46. That's the low viscosity one.
Then I was having cycling issues off on like many other threads.
Take your hose and spray out your AC condenser on the front of your truck. Years of accumulate dust, bugs, and children's Hope's was causing it to not allow enough heat transfer. It's probably difficult to tell but the clean spot is how my driveway looked I just pressure washed. The dirty spot is all the crud I washed out.
I hope this helps some of you solve your cooling issues.
