I had not considered the cycling switch because I put a new one in when I did the entire job but it sounds like I should be using the one you're recommending anyway.
I was thinking more like it might be a low refrigerant situation. When I was charging it for the first time, I received conflicting amounts needed for my Tahoe and in the end I was just guessing so I don't even remember how much I put in there to be honest and it never really cooled great. First timer here of course.
I was even thinking of evacuating and vacuuming it and recharging it from scratch. Do you know the correct amount of refrigerant needed for the 99 Tahoe with rear air?
I will go ahead and order that switch though, I like the fact that you can adjust it. Thanks.