What Causes the Sound of Water Sloshing When Driving?

1 Answers
Maxine
07/25/25 7:45am
Causes of water sloshing sounds inside the car: 1. The sound of circulating water from the water pump, which is a normal phenomenon. 2. The drain holes at the bottom of the doors are blocked by mud or sand, causing rainwater to accumulate inside the door and unable to drain. This results in water sloshing sounds when braking or driving on uneven roads. 3. A clogged air conditioning drain hole can cause water accumulation in the evaporator box, leading to water sloshing sounds while driving. When water enters the door and remains trapped in a sealed space for a long time without evaporating, it produces sloshing sounds. Car owners should promptly check the drain holes inside the doors to prevent them from getting clogged.
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