1. Leaking Heater Core: If the heater core in your vehicle is cracked or damaged, it can drip coolant onto the floorboard. Check the coolant level in the reservoir and look for any signs of leaks around the heater core.
2. Clogged Drain Tube: The AC evaporator drain tube can become clogged, causing water to back up and overflow. Check the drain tube for any obstructions and clear it if necessary.
3. Sunroof Leak: If your vehicle has a sunroof, a faulty seal or drain tube can allow water to leak into the interior and onto the floorboard. Inspect the sunroof area and look for any damage to the seal or leaks around the drain tube.
4. Leaking Door Seal: Broken door seals can also lead water leaking into your vehicle whenever you wash it or when it rains. Check the seals around the doors for any tears, cracks, or gaps and replace any that are damaged.
5. Leaking Windshield: A damaged or cracked windshield seal can also allow water to leak into the vehicle. Check the seal around the windshield for any gaps, cracks, or damage.
6. Leaking Tail Lights or Brake Lights Lens Gasket: If there's a gap or crack around the tail light or brake lights lens, water can leak into the rear portion of the cabin and onto the rear-seat floorboard.
Additional Tips
- Check the floorboards for any standing water. If there is water, remove it as soon as possible to prevent mold and mildew from forming.
- Thoroughly dry the floorboards and carpet to prevent any further damage.
- If you are concerned about further water damage, you may want to take your vehicle to a professional mechanic for further inspection and repair.
