
Yet, in overhead camshaft or overhead valve engines, the cylinder head contains exhaust and inlet passages, valves, spark plugs, coolant passages and fuel injectors. In most vehicles, the cylinder head sits above the cylinders, forming a roof over the combustion chamber. However, when the cooler fails, motor oil can get into the cooling system. The purpose of the system is to cool down the oil to an acceptable level. Advanced systems are often found in high-performance or race cars. The oil/coolant heat exchanger is vital to keeping the temperature of the engine down. When neglected, it can lead to serious engine damage. If you don’t repair the head gasket immediately, the engine is going to start overheating. You may see brown sludge sitting in the coolant reservoir when this occurs. Yet, when it fails, oil is going to leak into the cooling system or vice versa. It keeps the oil from mixing with the coolant. The head gasket is located between the engine block and cylinder head. Let’s examine these options a little closer. There could be an engine block crack, a faulty transmission fluid cooler/heat exchanger or possibly oil got into the system by accident.
#PEUGEOT 206 OIL IN COOLANT TANK CRACK#
It could also be a bad oil/coolant heat exchanger or a crack in the cylinder head. If you see oil in the coolant reservoir, there could be a blown head gasket.


Conclusion Causes of Oil In Coolant Reservoir
