2020 Raptor New Short Block - Oil in Cylinders

[RE Mac]

Yeah, you’re right. They do the same thing with diesels in boats and it rarely works out best for the boat owner.

The originally said at idle (only at idle) oil was being pushed into the turbo because of higher than “normal” pressure. Apparently a widely known issue because ford had a service bulletin to reprogram the computer. The service manager swore this would fix the problem, even talking down to me saying he’s done “a thousand” of these and my truck is not “special”. I basically told him to kiss my a$@ and to keep the truck for a few days and drive it himself. That’s when he realized I was right.

There was damage to the cylinder walls, according to the bore scope.

 

[FordTechOne]

3.5s are great arent they? i hate to start a "theres no replacement for displacement" argument, but pushing V6 engines to 450hp by forcing 7.0L of air into them seems great on paper... but its all in the execution.

The execution has proven robust in millions of trucks. There is a misconception that factory F/I engines are just N/A engines with turbos added, which couldn’t be further from the truth. They’re engineered to handle F/I; it’s not an afterthought.

This thread is a single example in which the OP ran his truck low on oil and internal engine damage occurred, which is not at all surprising.

The update that the Service Manager brought up can resolve oil consumption caused by high engine vacuum, but it cannot fix damage that has already occurred as a result of running low on oil.

 

[thatJeepguy]

The execution has proven robust in millions of trucks. There is a misconception that factory F/I engines are just N/A engines with turbos added, which couldn’t be further from the truth. They’re engineered to handle F/I; it’s not an afterthought.

This thread is a single example in which the OP ran his truck low on oil and internal engine damage occurred, which is not at all surprising.

The update that the Service Manager brought up can resolve oil consumption caused by high engine vacuum, but it cannot fix damage that has already occurred as a result of running low on oil.

Is it the high tension ring pack and low oil that lead to cylinder scoring?

 

[FordTechOne]

Is it the high tension ring pack and low oil that lead to cylinder scoring?

That’s a contributing factor, as well as the fact that these engines have oil cooled pistons. Once the sump starts drawing air the damage is not far behind.

 

[thatJeepguy]

That’s a contributing factor, as well as the fact that these engines have oil cooled pistons. Once the sump starts drawing air the damage is not far behind.

I was going to mention the oil cooling Jets. Those are under the piston skirt are they not?

 

[FordTechOne]

I was going to mention the oil cooling Jets. Those are under the piston skirt are they not?

They’re located under the “V” of the block, above the crank.

 

[jeanco]

Check my oil weekly!

 

[hingedthinker]

wait, we are supposed to check the oil on these fancy expensive trucks?

 

[Nex]

wait, we are supposed to check the oil on these fancy expensive trucks?

Only the peasants do. Most of us have people to do that. I ain't getting my hands dirty.

 

[hingedthinker]

Only the peasants do. Most of us have people to do that. I ain't getting my hands dirty.

Yeah, I have FordTechToo.