Hello XXXXXX
it sounds like you have a binding compressor and if so it will kill the engine when you turn the AC on, it will kill the motorat an idle.These compressors are prone to go bad.
The battery has nothing to do with the compressor problem, if you replace the compressor you would also need to replace the accumulater,orifice tub, and flush the system thourghy before replacing the parts.
Mr, Toolpusher08,
But why this filure appear after I changed the Battery?, Before I made the changed of the battery the Trailblazer was working good, I can turn on the A.C and the engine was working good.. as soon as put the new battery the failure appear. last year also I chaged the battery and had the same failure, I went to the Dealer and they fix the problem, not changed any thing (Comppresor),
Chevy Technician
ASE certified,expired. 30 years experiance self employed semi-retired.