Medium and Heavy Trucks
Have Truck Repair Questions? Ask an Expert
Hi my name is***** will be glad to help. If you have no external leaks then the coolant is either burning in the combustion chamber and giving you white smoke out of the exhaust ( Pitted liner or cylinder head problem) or it has to be mixing with the crankcase oil to some extent. If the engine sits for a few hours or overnight to allow it time to separate, drain the engine oil to see if there is straight coolant at the bottom of the pan. Let me know. If so, drop the pan and pressurize the cooling system to locate the source of the leak from underneath. Inspect the liners/liner seals for drips and at the front timing cover.
That is odd. So the oil level is not overfilling? Are there any signs of white ash deposits at the exhaust manifold or turbo connections? This would be a sign of coolant burning out of the exhaust.
Sounds like a possible head gasket leaking or cracked head. I would have the head sent out for magnafluxing and pressure testing. An in frame will be a good idea at the same time but be sure to pressure test the cooling system with the pan down and look under with a light to try to find the source of any leaks before you tear anything down.
Yes it can and it may not create a misfire depending on where the problem is. Could be an injector sleeve as well.