I’ve got a 2005 Chevy blazer zr2 and when it’s 30 Celsius or warmer and the engine bay is heat soaked and driving like 30kph or slower specially when doing slow off-road driving the ac will start to blow hot and the ac compressor will stop turning on don’t know if that’s normal because of all of the heat in the engine bay and being heat soaked but was thinking about putting and electric fan on the condenser to help with the issue I still have the stock clutch fan and shroud

 

It sounds to me like you need to add refrigerant to your A/C system