International LT Engine problems by year

provide a conclusive diagnostic result, the engine needed to be taken apart. The vehicle was not repaired. The manufacturer was made aware of the failure but did not assist. The failure mileage was approximately 625,000.

original complaint is related to the exhaust gases coming into the cab, and this one is about an actual flaw in the exhaust system allowing the venting of gases under the hood, it seemed to me that it would end up being a separate recall issue, even though directly related. Here is a link to thermal videos of the link on Onedrive: https://1drv.ms/u/s!ApLkoRLyIsQVjlZpQq2cwOL7nHLP?e=OdSRyA If the video appears garbled, move the play slider back to the beginning and it should play correctly. The videos appear to have no problem on mobile devices. The picture with the colored boxes gives a 3 point approximation of the location of the leak; directly down from blue box, directly behind green box, and directly lateral to the yellow box. Other pics are of crankcase vent opening and its location on most Cummins engine equipped trucks.

design of these trucks cause any leaking engine gases to be pushed into the cab of the truck, mostly through the air conditioning/heater vents. I have tested this. I zip tied a can of orange air freshener under the hood. The can was positioned in such a way as to point away from the air intake box, toward the back of the engine. When driving at highway speed, the orange air freshener was very strong coming into the cab from the a/c vents. The truck is supposed to be getting the fresh air from outside the truck, and forward of where the air freshener was spraying. I originally thought the only problem was that the cabin air intake box is located under the hood, in immediate proximity to all of the leaks. This in itself is a poor design. Even with duct tape over the openings into the cabin air box, any gases (or air freshener) is immediately pulled into the cab through the a/c and heat. I have no idea how this occurs. The design of the trucks allows any leaking gases under the hood to come directly into the cab. This applies to Freightliners and Internationals. They have the same basic design, and by experience I can say that both perform the same way. The hoods on both truck makes are designed with dedicated pathways to provide pure outside air for the intake of the ENGINE. The air provided to the driver comes from an unsealed airbox located under the hood. The main problem is not the leaks but that they get vented into the driver's cabin. The engine crankcase ventilation pours large volumes of exhaust gases and oil vapors into the engine bay of the truck. This is a design flaw. The crankcase exhaust exits to the inside of the frame, at the front left of the engine, approximately central vertically under the hood. This continually fills the engine bay with exhaust gases and vapors.