Mechanics

OIL IN COOLANT

Ford Probe

My 1989 Ford Probe 4 cylinder with 183K miles appears to have oil in the coolant. There is no evidence of coolant in the oil. An analysis of the exhaust shows a clean burn. There is a leak that appears in the vicinity of the connection of the lower hose to the block after the engine cools but not when it is hot. I am loosing a quart of oil every 1500 miles with no evidence of burning or leaking other than the oily coolant leak. Is there a place where the oil and coolant passages are in close proximity and could crossover? When running, the oil runs at a higher pressure than the coolant but when shut off the oil pressure drops to zero and the coolant stays pressurized until cool down. Wouldn’t this cause a reverse flow?
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Kurt bechle
July 21, 2007.



Does your car have an oil cooler? These are the most commonn place to get oil in the coolant. If not then it could have a bad head/head gasket causing it or worst case a cracked block

Tiny
Jack42
Jul 22, 2007.