your a/c unit works your engine harder then not running it. it should not make it over heat, but if it does, check your antifreeze/ water mix in your ratiator, if the level is too low, this may be your problem, if it is fine, check your fan, make sure it is running correctly, you should hear it come on when your engine is getting hot. if this is also working fine, heck your radiator and make sure the fins on it arent bent in any way, a few bends are ok, but if 1/4 or more of it are bent, get a different radiator, lastly, check and make sure you dont have bugs clogging your radiator (this has happened to me)
no
yes
It can if their is something wrong with the cooling system.
ac is making fan run more
Yes---after air goes thru condensor,it is warmer than if ac is off. Clean the radiator
Check for debris stuck between the ac condenser and the radiator such as leaves.
AC runs on the battery. If the car is off and you run the AC, then start the car, it will stall.
no but if you try to run the car with the water pump out you could overheat your engine
Yes, low coolant will cause it to overheat without the AC; that is not the only reason that will cause overheating however.
Your AC should not cause your car to overheat. Your car probably has a different reason that it is overheating. However, your AC adds additional heat to the engine. Your car wants your AC off until you get the problem fixed. You would have a similar situation if you sprained your ankle while you carried your backpack. Someone would tell you to put down the backpack until you got your sprained ankle taken care of.
If the engine is overheating, running the ac will make it overheat faster. The ac only cools the inside of the car, it actually adds heat under the hood.
yes it does it makes the engine run at a higher rpm to run the ac compressor