What Causes the Car AC Not Cooling at Idle but Working Normally While Driving?

[LePaisley]

Here are the specific reasons why a car's AC does not cool at idle but functions normally while driving: 1. Dirty AC filter: If maintenance has not been performed for a long time, a clogged filter may affect the cooling efficiency of the AC. 2. Dirty condenser: A dirty condenser can also lead to poor cooling performance. The car's AC condenser is located at the front of the vehicle and can be cleaned using a water hose. 3. Insufficient refrigerant: Low refrigerant levels in the AC system's pipelines reduce pressure, resulting in poor cooling. Refill the refrigerant and check for any leaks in the AC piping.