Oil cooler lines leaking badly.

[Denalibro76]

I have leaky oil cooler lines and since they can be somewhat of a pain to replace I am wondering about just doing away with the lines and getting a delete plate. I’m in a smaller town and pretty much just drive my Yukon to and from work with an occasional trip to the city. Never tow anything and I just drive it sensibly. Does it really need the cooler? 2009 Yukon 6.2 L9H

 

[mikez71]

Engine oil cooler lines should be pretty easy. I remember the trans cooler lines taking more time, but also not difficult.

My vote is to replace them.
Do I think you need them? Doubt it.

I am curious if the calculated engine oil temp takes into account whether you have a cooler or not. Saw mine read 210 degrees today (autosync display) on my originally non-equipped '12 tahoe..

 

[Doubeleive]

PRO TIP: when removing the old lines once it is all disconnected you can just cut the rubber lines with dykes and pull the 2 pieces out according, there is no need to fight the removal. that's just dumb because it's going in the garbage or recycle or whatever you are going to do with it.
PRO TIP 2: wrap the u-joint caps with blue painters tape to keep the caps on, if those caps come off all the needle bearings are going to fall out and then your doing a u-joint also
this video is on a Sierra and in our case the denali will be the exact same process, except the fan shroud is smaller so even easier.

 

[rdezs]

You'll be fine without the oil cooler lines.

Get yourself a quarter drive, inch pound torque wrench. They are not expensive, and actually critical to installing either the oil cooler lines or the block off plate. Too loose and it will leak, too tight and it will work the aluminum plate and leak.

 

[alvocado]

If the rubber to metal connection is leaking, you can potentially remove the rubber hose and crimp fitting and replace the section with new hose and a step clamp. I did this on the transmission cooler lines 4 years ago and no leaks. It was much easier than replacing the entire line when only the metal crimp failed.

 

[Doubeleive]

ya'll make it seem like this is some hard job to do, it's not