Why is my car making a sloshing noise?
The most common cause is a clogged drain trapping water in the heating and cooling system. The water, formed by condensation, usually empties onto the ground. But a clogged drain can cause it to back up, leading to the sloshing sound and even dampness on the passenger-side floor.
How do I get the air pocket out of my heater core?
Slowly remove the cap of the radiator and some coolant to make sure that it doesn’t bubble up. Run the engine and let it warm up for a while. After reaching the operation temperature, the valve of heater will automatically let the coolant flow into the heater core, which pushes out all air bubbles.
Why is water sloshing around behind the dashboard?
Of concern is that the water sloshing around behind the dashboard could be heard for weeks before the heater core gave out and leaked. My mechanic replaced the heater core and we could still hear the noise. He then inserted a restrictor in the line into the heater core and the problem still exists.
What causes a water sloshing sound on the passenger side?
Here are some of the things that cause the water sloshing sound on the passenger side: 1 Blocked drain holes – you may hear the sound if the drain holes are blocked. This is easier to detect as you can inspect… 2 Drain holes are very high – some vehicles are poorly designed with a reservoir around the sunroof’s perimeter. This… More
What makes a sloshing noise under the dash?
Sometimes when I start it up, begin moving forward, or quickly decelerate I can hear what sounds like water (or some other liquid) moving from one place to another (can’t quite tell where) under the dash or maybe just behind the firewall.
Why does my car make a sloshing sound when it rains?
This is one of the overlooked causes of car water sloshing. If you have old or worn-out sunroof seals, water will drain into the vehicle every time it rains. And as the water drains down to the drain holes, they may not handle all the water at once, which may cause clogging. As a result, this will lead to a sloshing sound when you drive.