2017 Santa Fe Sport 2.4L oil leak by dipstick pressure switch?

[5anta3oosted]

I've got a leak in my 2017 Santa Fe Sport with the 2.4L engine. It's at the front, right under the dipstick and above the oil filter. It looks like it's coming from some kind of electrical thing. Is that the oil pressure switch? I know the older ones were under the intake, but I was wondering if they changed it on these newer models.

I already changed the oil pan and valve cover gasket, and that helped a ton. I used to lose a quart of oil every week! I just finished those repairs, so I don't know how bad the leak still is. Has anyone else run into this? Any tips would be great, or if you know this is a common problem on the 2.4L, let me know.

 

[The Kingmaker]

Looks like you're correct that the culprit is the oil pressure switch. For your Santa Fe model, the oil pressure switch is indeed usually located on the front of the engine, often near the oil filter housing.

it's a common spot for leaks as they get older. clean it up so you can see where the leak is coming from.

 

[Shay2k]

I agree with @The Kingmaker sensor is known to go bad or just start leaking over time. If you've already knocked out the oil pan and valve cover (nice job, btw), this could be the last culprit, they're cheap and not too bad to replace, just unplug it, unscrew it, and put in a new crush washer if it comes with one.

 

[SantaFeAnd5nacks]

I totally agree with you—it's likely the oil pressure switch that's causing the issue. Swapping it out usually means you'll have to take off the intake manifold, and I won't lie, that can be a bit of a headache. But hey, if you're up for a DIY project, the part (Hyundai 94750-37100) is pretty budget-friendly and easy to snag.

By the way, have you seen any oil around the wiring harness or the electrical connectors? That could really be a solid clue that it's the switch giving you trouble.

 

[SantaXpress]

I know exactly what you're talking about! I had a similar issue with my 2015 Tucson that had the 2.0 engine. I kept dealing with a slow front leak and was convinced it was a gasket problem until I realized it was actually the oil pressure switch. I noticed oil pooling right under the dipstick too, and seeing oil inside the connector really sealed the deal for me.

I ended up replacing the switch along with a new crush washer, and since then, it's been completely dry. Removing the intake manifold was a bit of a hassle, but definitely doable with some patience.

 

[Fvrther]

Consider replacing the switch next, its not expensive and its easy to reach, make sure the connector isn't soaked with oil too

 

[5antaFe9ourney]

The oil pressure switch often tends to be the main issue with those 2.0L engines. If you find oil in the connector, that's a clear sign. Replacing the switch along with the crush washer typically solves the problem for good.