1995 Chevy Blazer compressor

Thats one reason, it could seize. It could leak, does your compressor engage? If you put coolant in it, you have to make sure you put enough and it has the oil in it to help condition the o rings and moving parts. But as your putting in the coolant the compressor will cycle on and off and start to cycle off less frequently untill it doesnt go off at all, unless you turn it off.