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John G.
John G., Honda Technician
Category: Honda
Satisfied Customers: 2652
Experience:  Dealership tech since 1982. ASE and Honda Master Technician.
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98 honda civic: oil (not transfluid) found no coolant in oil

Customer Question

98 honda civic, coolant tank over filling with oil (not transfluid) found no coolant in oil though, how is this possible and what is wrong
Submitted: 7 years ago.
Category: Honda
Expert:  John G. replied 7 years ago.

Usually its a headgasket leak near the rear center where the oil pressure port feeds the head.


It can also be a cracked head but its not as common.

Customer: replied 7 years ago.
why is there no coolant in the oil
Expert:  John G. replied 7 years ago.

There is 20-60 psi of oil pressure in that area. the Coolant pressure is much lower.

It cant pass through the port into the oil.