Hello, maybe someone can help me with my problem. I have had AC issues with this truck for the past 3 years. Every time I put a compressor in, it burns up shortly after... as in, lights on fire. I put the oil in properly, vacuum the system, put freon in, and a few days later, the ac stops working again. A while after that, the compressor burns up. I feel like i am doing something wrong here. I have replaced all major parts multiple times.

Pressure switch?