Likely a blown head gasket, or cracked head, hopefully not a cracked block. Check the oil to see if it looks milky. Check the tail pipe to see if coolant is dripping out of it. If you can, check the compression in each cylinder. If two adjacent cylinders have low compression, it is likely a blown head gasket.
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Likely a blown head gasket, or cracked head, hopefully not a cracked block. Check the oil to see if it looks milky. Check the tail pipe to see if coolant is dripping out of it. If you can, check the compression in each cylinder. If two adjacent cylinders have low compression, it is likely a blown head gasket.