Oil in the air filter

PARISRSBT

MEMBER
2008 FORD F-250
6.4L
V8
TURBO
4WD
AUTOMATIC
124,000 MILES

I recently went mud ridding and got stuck. The truck was leaning to the drivers side and water ran into fuel tank and truck went dead. We drained everything and finally got the truck stared with either it would only staying running with either. Then we noticed oil blowing back into air filter box. Any suggestions?

3 Replies

CADIEMAN

MECHANIC
3,544 POSTS

That means you may have caused some engine damage. Did you over rev the engine?Because this is a sign of compression blowing pass the rings forcing the oil up into the air filter.

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Monday, April 21st, 2014 AT 9:18 PM

PARISRSBT

MEMBER
2 POSTS

Am I looking at changing the motor? Or can it be fixed? And yes were running the rpm high after we finally got it started.

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Tuesday, April 22nd, 2014 AT 2:12 AM

ASEMASTER6371

MECHANIC
52,797 POSTS

Good evening,

The fact that water got into the system, it may have got into the injector pump and the injectors. If any water got into the cylinders, it cannot be compressed and most like damaged the piston rings.

That would explain the blow by into the air filter. Compression is coming back into the intake system.

Yes, replacing the engine is the answer. It would be a total loss if you pulled it down and tried to rebuild.

Sorry, no easy fix on this one.

Roy

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Thursday, April 2nd, 2020 AT 5:30 PM