How To Fix Sloshing Sound In Car While Driving? Best Solution

Hey there, Today I will guide you: How to fix sloshing sound in car while driving? And more. So, let’s see. 

How To Fix Sloshing Sound In Car While Driving? 

A sloshing sound in a car while driving is often indicative of water accumulation in areas such as the doors, trunk, or HVAC system. Here are steps to diagnose and fix this issue:

1. Check Door Drains

Tools Needed: Small screwdriver or wire, compressed air (optional).

• Locate Door Drain Holes: Open your car doors and look at the bottom edge for small drain holes.
• Clear Obstructions: Use a small screwdriver or wire to clear any debris blocking these holes. You can also use compressed air to blow out the holes.

2. Inspect the Sunroof Drains (if applicable)

Tools Needed: Flexible wire, compressed air, water.

• Locate Sunroof Drains: These are usually found in the corners of the sunroof.
• Clear Blockages: Gently insert a flexible wire into the drain holes to clear any blockages. Follow up with a blast of compressed air to ensure they are fully clear.
• Test with Water: Pour a small amount of water into the sunroof drain area and check if it drains properly underneath the car.

3. Examine the HVAC System

Tools Needed: Flexible wire or small brush.

• Check the A/C Drain: Locate the A/C drain under the car, usually near the passenger side firewall.
• Clear the Drain: Use a flexible wire or small brush to clear any blockage. You can also gently blow compressed air through the drain tube to clear it.

4. Inspect the Trunk

Tools Needed: Towel or sponge.

• Check for Water Accumulation: Open the trunk and check for any signs of water pooling in the spare tire well or other areas.
• Dry and Seal: If water is present, dry the area thoroughly with a towel or sponge. Inspect the trunk seals for damage and replace them if necessary.

5. Check Under the Car Carpets

Tools Needed: Wrench or screwdriver to remove seats, towel or sponge.

• Remove Seats (if necessary): To access the carpets properly, you may need to remove the seats.
• Lift Carpets: Lift the carpets to check for any water accumulation underneath.
• Dry Thoroughly: If you find water, dry the area thoroughly with a towel or sponge.
• Inspect for Leaks: Look for any signs of leaks around door seals, windows, or the firewall.

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Preventive Measures

• Regular Maintenance: Regularly check and clean all drains.
• Seal Checks: Periodically inspect and maintain all weatherstripping and seals to prevent leaks.
• Parking Considerations: Avoid parking under trees or areas where debris can easily clog drains.

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By following these steps, you should be able to identify and fix the source of the sloshing sound in your car.