A blown or damaged head gasket can cause coolant to leak into the oil pan. The head gasket is responsible for sealing the cylinder head to the engine block, and if it fails, coolant can seep through the gap and drip from the bottom of the oil pan.
2. Cracked cylinder head or engine block:
A crack in the cylinder head or engine block can also allow coolant to leak into the oil pan. These cracks can be caused by overheating, freezing, or other mechanical damage.
3. Damaged oil cooler lines:
If your vehicle has an oil cooler, damaged oil cooler lines can cause coolant to leak into the oil pan. The oil cooler lines carry coolant to and from the oil cooler, and if they become damaged, coolant can leak out.
4. Failed water pump:
A failed water pump can also cause coolant to leak from the bottom of the oil pan. The water pump is responsible for circulating coolant through the engine, and if it fails, coolant can leak out of the weep hole and drip from the bottom of the oil pan.
5. Insufficient maintenance:
If your vehicle is not properly maintained, it can lead to coolant leaks. This is especially true if the coolant is not changed regularly, as old coolant can become corrosive and cause damage to the gaskets and seals in the cooling system.
