01 Yukon Denali 6.0 oil leak

[Brandon50394]

I was loosing oil in my 01 Denali are the oil cooler lines and pan a common place to leak it looks like it's coming out of the pan right above the oil filter when it's running

 

[Brandon50394]

Also pulled the inspection plug on the trans on the bottom and looked at the back of the oil pan and it was clean

 

[SLCHOE]

Oil cooler lines like to leak right at the block above the oil filter and also at the crimp fittings where they go from rigid to rubber lines.



Most of the time all 3 fail but i sounds like the leak is coming from the "manifold" part above the oil filter. There is rubber preform gasket that leaks between it and the oil filter housing.

Changinf out the oil cooler lines is a 10 minute job on 2WD but a lot more time on 4WD because you have to drop the front diff/axle to get them in/out.

 

[01ssreda4]

Yep, change that rubber gasket and you should be good.