Why does running the A/C in your car on a hot day raise the temperature of the engine coolant?

Question

I thought the A/C had refrigerant of its own

Answer 1

The condenser for the a/c system is in front of the radiator.  So when it is discarding heat, that heat must pass through the radiator.  So in other words, the ambient air passing through the radiator is kind of "pre-heated" from the heat given off from the condenser.  This will reduce the efficiency of cooling for the radiator and cause the temp to rise some.

Answer 2

it does the job of the refrigerant is to cool the air that passes by the condenser coils thats where YOU get cold air.. but as for the engine coolant rising that is due to the engine having to work harder to drive the A/C compressor that circulates to refrigerant..

Answer 3

Because as the refrigerant is circulated, it produces heat, which is dissipated through the condensor, which is located right in front of the radiator