Honda Accord blown head gasket caused by coolant leak in cylinders 3 and 4 on Honda Accord

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Honda Accord owners report experiencing issues related to a blown head gasket, particularly due to coolant leaks in cylinders 3 and 4. These owners have noted that a blown head gasket can lead to coolant leaking into the oil, resulting in a milky oil appearance that compromises lubrication and risks severe internal damage. Additionally, the compromised compression from the blown head gasket may cause engine misfires, leading to rough idling and diminished vehicle performance. Furthermore, the mixture of coolant and oil can result in contaminated oil, which increases friction and can cause significant engine damage. It is essential for owners to address these issues promptly to prevent further engine damage and ensure the vehicle's longevity. Regular maintenance and monitoring of engine temperature are recommended to help prevent overheating, a common cause of blown head gaskets.

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