Why is my coolant Milky?
A strange dark or gray, milky color in your coolant, or white antifreeze, is caused by a significant problem with your head gasket. When you notice milky oil in the car, it’s because the coolant has leaked into the combustion chambers and mixed with the motor oil, so the color is from the diluted oil.
Why does oil flow into the coolant in a Honda Accord?
A worn head gasket would allow oil to get into the coolant, but it would also allow coolant to get into the oil. The result is white smoke blowing out from the exhaust and dead cylinders.
Why does my engine oil flow into the coolant?
Install a re-built engine. In some 1998 and 1999 Accord model years with 4-cylinder engine blocks, the manufacturer drilled and tapped holes too deep for the cylinder head hold-down bolts. Holes went too far into the passages below allowing oil and coolant to mix.
When to replace the head gasket on a Honda Accord?
If you have evidence of coolant in the crankcase, you can d o a compression and leak-down test. If the compression in the cylinders is okay (if the ranges are between 163 and 170 PSI with an acceptable 15 to 20 PSI pressure difference between the cylinders), your head gasket is good and does not need to be replaced.
What should I do if my Honda Accord cylinder head is warped?
Weld any cracks through a gas tungsten arc welding (GTAW) procedure, which is also known as tungsten inert gas (TIG). This is okay since both the cylinder head and the engine block are aluminum. Check the cylinder head and have it milled if it’s warped. If you choose to repair the head yourself, a new head gasket will be required during reassembly.
A worn head gasket would allow oil to get into the coolant, but it would also allow coolant to get into the oil. The result is white smoke blowing out from the exhaust and dead cylinders.
Install a re-built engine. In some 1998 and 1999 Accord model years with 4-cylinder engine blocks, the manufacturer drilled and tapped holes too deep for the cylinder head hold-down bolts. Holes went too far into the passages below allowing oil and coolant to mix.
If you have evidence of coolant in the crankcase, you can d o a compression and leak-down test. If the compression in the cylinders is okay (if the ranges are between 163 and 170 PSI with an acceptable 15 to 20 PSI pressure difference between the cylinders), your head gasket is good and does not need to be replaced.
Weld any cracks through a gas tungsten arc welding (GTAW) procedure, which is also known as tungsten inert gas (TIG). This is okay since both the cylinder head and the engine block are aluminum. Check the cylinder head and have it milled if it’s warped. If you choose to repair the head yourself, a new head gasket will be required during reassembly.