There are 1 stored owner reports matching the engine leading-label group for the 2017 Lincoln Navigator in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 1 of 1 matching reports.
Open the full vehicle complaint log (all categories)problem is when you go to check the oil do you think you’re gonna find a low oil situation and what happens is the oil is actually overfilled however it’s not overfilled because you put too much oil in it. It’s overfilled because gasoline is leaking into the oil pan. So the oil is diluted and it actually doesn’t even seem like oil. It seems like dirty gas. That’s how much gas gets into it. Supposedly this is a known issue after searching it on the Internet, this is known, and it happens with this making my vehicle. The manufacturer should be responsible for fixing it. Supposedly the fix is either changing the fuel pump or fixing the valves or maybe a combination of both either way the consumer should not be stuck with this. This is a design error or defect. It says there’s also a problem with the gasket I feel I should not have to pay to get this fixed. This is a designed defect and they sold the car this way knowing afterwards that there’s an issue with it. My crank case is filled with gas when I pull the dipstick out. It drips like water. If you look at the full line on the dipstick it’s about 1 inch over the full line and the oil is virtually useless. The car also runs an idles rough and it’s constantly idling up and idling down and that’s probably because the gas is leaking into the engine. Please look into this and I appreciate anything you can do. This is definitely a Ford issue. They should be responsible there’s nothing I did to this particles this problem. I maintained my vehicles. I did everything I was supposed to do and this problem arose because it’s defect in the car quite frankly if I would’ve known it, there’s no way I would’ve bought it. I feel the public should know about this and I feel that they should be responsible to fix it. Thank you very much. I appreciate all your help in time. Please feel free to contact me if you have any questions thank you [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.