Does Running the AC for 1 Hour While Parked Harm the Car?

[Steve]

Running the AC for 1 hour while parked can significantly harm the car. Prone to carbon buildup: Prolonged idling can cause carbon buildup in the engine, leading to incomplete fuel combustion and resulting in engine shaking. Carbon buildup in the engine reduces engine power, causing uneven and gradually diminishing power output. Increased fuel consumption: Higher fuel consumption adds to the financial burden. Difficulty starting: Cold starts become difficult, meaning the car may struggle to ignite. Safety hazards: Severe carbon buildup in the combustion chamber can cause engine knocking, produce noises during low-speed acceleration, damage pistons and crankshafts, and lead to engine overheating, significantly compromising vehicle safety.