[bodyman36]

ok we have had several vehicles that a/c works fine at idle, then as you give it gas , the a/c stops,
1. low on Freon, 2.bad pressure switch, 3 fan not working ,or bad, fan switch bad, 4 high pressure default, 5, bad a/c compressor clutch.. 6 lines in a/c restricted or clogged, 7 bad orphis valve or tube, 7 restricted a/c condenser, 8 electrical fault,

the last trailblazer had been worked on by the owner and they had the orphis tube in backwards, this caused the a/c compressor to build high side pressure and kick the switch out , we removed it, cleaned the system and replaced, it , vacuumed and recharged..