2007 yukon denali oil leak

[Charlie207]

I recently had the intake manifold off on our 07 6.2 Denali w/197k miles and all valley cover bolts were tight.
View attachment 433514

It's usually the oil pressure sender back there that seeps.

(also, rec-port heads FTW)

 

[dictum]

I have the same thing in my 2007 Denali, leaks pretty bad, the worst leak I have ever seen.

 

[B-train]

Is this on all engine versions? I have a 5.3. I have had a mystery oil leak for a long time. Mosly just irritating since I cant find it. I did have valve covers leaking a bit which was some of it and the block off plate too.

Yes, all the LS (4.8, 5.3, 6.0, 6.2) motors use the same style plate and seal assembly I believe.

 

[89Suburban]

HAHA that's nothing mine looks like Le Brea tar pits under there but when you look though the inspection cover in the bell housing it's bone dry inside. I'm getting ready to replace the oil pan (drain plug is stripped), gasket, pickup tube o-ring and install oil diverter on the relief valve soon.

 

[Cranker57]

I have a 2006 Suburban. went thru 3 oil pans because of leak. It was the oil pressure sensor and the shop put in their own brand of oil filter that leaked (twice). I told them to try a brand name. they did and leak is gone.

 

[davidavidd]

Lol, I've lost count of how many times I've shared this video here, but I know what it feels like, I'm almost going crazy trying to find the source of this leak.

Other possible origins: valve covers, oil pressure sensor and an unlikely but not impossible cause, a hairline crack in the engine block.

 

[Airman68]

It's funny how my Yukon was leaking, then mysteriously stopped... I give... When it leaks it's really just drips not puddles so I'll probably live with it. If I park it for extended times, I just put cardboard under it. It's a 2008, can't expect perfection at this point. It runs good and it's paid for.