Why would your car floor keep getting wet even though there aren't any visible holes?

1. Why is the floor of my car soaking wet?
2. What would cause water on the floorboard of my car?
3. Why is it wet under my floor mats?
4. How does water get inside car?
5. What would cause water to leak from under the dash?
6. Why does my floor board get wet when it rains?
7. What do you do when your car is leaking water inside?
8. Why is water coming from under my glove box?
9. Why does a heater core leak?
10. How do I stop my heater core from leaking?
11. Can I drive my car with a heater core leak?
12. How much does it cost to fix a leaking heater core?

Why is the floor of my car soaking wet?

Causes of a Wet Passenger Side Floor Mat #1: Bad Heater Core

Hot coolant flows from the engine, where heat is absorbed, and taken to the car's heater core when you turn on the heater. The heater core is like a small radiator. ... If you smell antifreeze leaking into the car, a bad heater core is almost certainly to blame.

What would cause water on the floorboard of my car?

Water present on the floorboard is usually caused by one of two things. Water is circulated into the passenger compartment through the heater core. The heater core is heated by the engine coolant. Air is then blown over the heater core, by the blower motor when the heater is on, to heat the passenger compartment.

Why is it wet under my floor mats?

Heat under your floor mat comes from the exhaust pipes, and causes moisture trapped in the carpet to steam and collect on the bottom of the mat. The moisture under your carpet has to come from somewhere and that somewhere is almost undoubtedly the air-conditioning system.

How does water get inside car?

Potential causes of leaks in your car. Behind the door panel there is a plastic or foam membrane, designed to keep moisture that makes its way into the door from getting into the interior. ... If the membrane gets ruptured or torn, or the drain holes get plugged, water can run down the membrane and soak into the door panel ...

What would cause water to leak from under the dash?

Often it's a clogged drain hose from the air conditioner evaporator or condenser under the hood that comes through the firewall there. An auto tech can locate it and blow it out for you with a high pressure air hose typically. It usually gets backed up and leaks behind the glove compartment area on to the floor there.

Why does my floor board get wet when it rains?

The seal on your windshield or door may be leaking. The water could run behind the trim and pool on the floor, leaving no obvious water trail.

What do you do when your car is leaking water inside?

Most cars have a cabin filter in the engine compartment. The filter often comes with a cover and seals to prevent water from leaking into the cabin. If installed incorrectly, these seals begin to let through the vent, thereby causing leaks inside your car. To resolve the issue, have a mechanic replace the entire set.

Why is water coming from under my glove box?

The evaporator coil gets cold and condenses water out of the air. The evaporator sits in a plastic box usually under the glove box on the passenger side. The condensed water is supposed to collect at the bottom of the evaporator box and run down to a hose to underside the car.

Why does a heater core leak?

Coolant/antifreeze contains corrosion inhibitors that coat the surfaces inside the cooling system, including the heater core. When the corrosion inhibitors are depleted, the cooling system can become corroded, filled with contaminants and may even start to leak.

How do I stop my heater core from leaking?

Fixing a leaking heater core will always be much easier than replacing one. Since it is only a small leak in the heater core, we recommend simply sealing that leak and leaving your heater core in place. You can do this by simply by adding BlueDevil Pour-N-Go to your vehicle's radiator when your vehicle is cold.

Can I drive my car with a heater core leak?

You can still drive on with the condition; however, you should not, for a long time. The heater core uses the engine's coolant, and a faulty heater core affects the cooling effect which then raises the temperature. Not curing the issue and continue to drive the vehicle this way can lead to further engine damage.

How much does it cost to fix a leaking heater core?

Replacing the heater core can be an expensive job, and usually costs between $564 – $927 for parts and labor. The parts aren't particularly expensive, normally costing $80 – $234, but the location of the heater core means that labor costs tend to be quite high.