- Faulty heater core: The heater core is a small radiator located under the dashboard that helps regulate cabin temperature. If the heater core develops a leak, it can cause antifreeze to leak onto the floor.
- Cracked or loose heater hose: The heater hoses connect the engine to the heater core. If the hoses develop cracks or become loose, it can lead to a leak that causes antifreeze to run out under the dash.
- Damaged water pump: The water pump is responsible for circulating coolant throughout the engine. If the water pump fails or becomes damaged, the pressure in the cooling system can decrease, leading to leaks and drips.
- Faulty thermostat housing: The thermostat housing contains the thermostat, a valve that regulates the flow of coolant in the cooling system. If the thermostat housing is damaged or cracked, it can cause antifreeze to leak out.
Troubleshooting Steps:
1. Inspect Heater Hoses: Check the heater hoses for signs of cracking or looseness. Tighten any loose hoses and replace those that are cracked or damaged.
2. Examine Heater Core: Look for signs of leaks or corrosion on the heater core. If the heater core is damaged or leaking, it may need to be replaced.
3. Test Water Pump: Verify that the water pump is functioning correctly, paying attention to any unusual noises or vibrations. If the water pump is not working properly, it should be replaced.
4. Inspect Thermostat Housing: Examine the thermostat housing for any damage or cracks. Replace the thermostat housing if necessary.
5. Consult a Mechanic: If the leak persists, it's advisable to consult with a qualified mechanic who specializes in automotive repairs to diagnose and fix the issue accurately.
