Why would you want to disconnect it? In Texas, it can get up to 103-105 F. It's true that all these components take out the power from your engine, but we're talking about Power Steering Pump, Power Brakes, Headlights, AIR Pump, Exhaust System, etc. Are you listening to someone who doesn't care what you do to your car because it's not their car? Be very careful if you remove anything off your car; I'm restoring a 1977 Corvette, and my major problems are the missing parts that an uncaring stupid previous owner removed and discarded simply because he wanted to go just a little bit faster.