Suburban, Tahoe, Silverado, Sierra, Yukon Oil Leak Easy Fix 

There is a thin metal cap on the bell housing that you can pop off and take a peak up in there and see if there is oil anywhere all up in there to possibly rule out a rear main seal leak.

Yr. correct, It's hard to tell when oil is all. over, so you clean it all off & then drive it, come back & ck again, before starting repairs. These engines commonly leak @ the oil pan & rear main.

Thanks for the video! I have same problem on my 07 Chevy Tahoe

DEALER RIPOFF!!! I just did this job on my 2012 Tahoe 4x4. It took literally 5 minutes to change when I was doing an oil change. The part was $6 (Felpro). You get great access to this when the oil filter is out, no need to remove driveshaft. Use a box wrench with a ratcheting flex head (cheap at a place like Harbor Freight). On another note, be very careful when using stop leak in your engine. That stuff has terrible friction properties and may actually cause damage if left in too long. Although I am not super experienced on this topic, I believe the best approach is to not use it if possible (fix the actual leak), or change the oil a short time later to avoid possible damages. Besides this leak that the Tahoe had, the rest of the vehicle underside is completely dry. My older silverado on the other hand, needs some work! BTW, thanks for your service brother!

Have the same issue. I used oil dye and a blue light. Had to keep the motor running but eventually saw it was my oil pan gasket. That was over a year ago and it has done wounders for rust prevention.

thanks for the video. I’ll be watching for an update/confirmation video or comment on the fix. Maybe at the next oil change. My truck is 2 wheel drive so plenty of room.

AT-205 is your best bet especially for the rear main seal. Check Project Farms review. I have used it with great success. The stuff works on seals and o-rings, not torn gaskets. If you have multiple leaks, this stuff will fix the rubber seal leaks and make the others easier to find. Its worth the $15.

Note also synthetic oil leaks out always after switching to regular 10w40 oil leaks slowed down

You da man Jimmy. Thanks for sharing your fix.

Best way I'v found to locate an oil leak is to take the vehicle to a carwash and clean the engine and underside. Then check for leaks in a couple days.

On my 5.3 oil is leaking from the oil pressure sensor, intake plenum cover, oil pan, oil cooler cap, valve covers, dip stick O ring, camshaft sensor, oil fill port, rear engine cover, front engine cover, oil level sensor, and rear main seal think im going to try spay foam.

Probably oil cooler lines leaking as well

Have been a skeptic of oil sealant that being said I can't say enough about AT 205 reseal an amazing product for seals don't know if it will help gasket but definitely works for seals anything except never put it in brake fluid. It's for engines, trans,ps,diffs hydraulic leaks just follow directions.

Buy a bottle of tipi 205 transmission seal conditioner there's videos about it you can buy it online for about 14 bucks for Advance Auto Parts for 24 put about a half a bottle in with new oil Drive the vehicle on about a 50 to 100 me trip and then check it most likely it will have stopped leaking oil the problem with your theory is just adding a little oil as you need it as if that seal all of a sudden decides to let loose while you're driving it and drains all the oil out of the engine then you got a engine problem TP 205 transmission seal conditioner should fix the issue and if you're not running synthetic oil in the engine or at least a synthetic blend you should be that's my advice based on experience and videos from season mechanics such as Scotty Kilmer and others good luck

Its oil cooler line

I’m having the same problem with my 2009 Yukon but did that fix the oil leak?

Put a cartoon under it in driveway and u ll be able to know where the leak coming from, but i can tell u they all leak on top oil filter on oil cooler line conection even doesnt have cooler line

don't take the drive shaft out you can replace the gasket

I changed mine thinking it would fix it, ended up leaking from the rear main seal. Still leaking, haven't fixed it yet. Used a swivel ratchet wrench for the two 10mm bolts cause the drive shaft is in the way.

Using 10w40 oil has slowed down leak a lot

Would you be able to use some jb weld on the rear main seal

Sunset chev eh? That's where I bought my 2018 Silverado. Thought they offered lifetime powertrain warranty?

Sure it's an easy fix -- IF that's where it was leaking. But a bad main seal or oil pan will cost at least $2000 (AWD) as there's no way the average back yard mechanic would attempt it themselves.

Can u change the gasket without dumping the oil

Was that the problem

One more to 800. Lets go people. Like and subscribe.

Make this easier on yourself end get yourself some dye to put in the engine then use a black light after 50 miles or so to find the leak

'Promosm'

Did you check the crank sensor above the starter?