Air condition problem trailblazer 2003 on 2003 Chevrolet Trailblazer

I have trail blazer 2003 while i am driving up to the mountain my a/c start to blow hot air ,i changed the fan cluth and the high pressure sensor and still the same problem.while driving on the highway i have no problem with my a/c all the way but when i start going up it start to blow hot air

Asked by for the 2003 Chevrolet Trailblazer
1 answer 1 comment
Have you had someone install gauges to see if it is at the right level, since you have replaced the fan clutch it sounds like it might be a little low on freon.
Yes the freon is on the right level,does the a/c radiator make this problem?