The ac unit is a tax on the engine to run. This is true with all vehicles. Having the ac on will make the engine work harder to run the ac compressor. This makes the engine run hotter.
yes it does it makes the engine run at a higher rpm to run the ac compressor
Generally when the engine is hot or the AC is on.
yes their the same engine the only problem you might run into is ac on the other car or your car if not properly done you may not have ac in your current car
ac is making fan run more
Using the AC takes power from the engine and it does lower the mpg.
Yes. If the engine is running too warm, from a lack of coolant, the ac will not work.
AC runs on the battery. If the car is off and you run the AC, then start the car, it will stall.
Your cars engine accessory belt drives the AC compressor.
the AC is run by a belt that is connected to the engine. if you turn the engine off, the belt stops moving. No belt movement means no power for the AC. the fan will only blow air, not cold air.
The Toyota Prius has electric AC, the gasoline engine will only run at idle with the ac when the battery drops below 50 %. The power steering is also electric. The same is also true for the Ford Escape hybrid. When you run the air conditioning, the gas engine will run until the a/c is fully charged then it will run off battery power. The downside of this is that you are deep cycling the batteries and shortening the life.
they do for the ac they only come on when the engine temp is peaked about 210 deg