At highway speed the A/C system cools normally,but poorly during around town stop and go driving.What is the most likely case of this condition?

Question

Quizplus · Accepted Answer

The cooling efficiency of an A/C system at low speeds or idle can be significantly affected by the airflow through the condenser. If the electronic cooling fan relay is open, it means the fan that's supposed to draw air through the condenser when the vehicle isn't moving fast enough to do so naturally isn't operating. This leads to poor A/C performance during stop-and-go driving, while at highway speeds, the natural airflow is sufficient to keep the system cooling effectively.

At Highway Speed the A/C System Cools Normally,but Poorly During