Factory Oil Cooler Line Leak

[Trawz]

I have been battling a small, but annoying leak coming from what I believe is the "Engine Oil Cooler Coolant Outlet Hose - GM (22939917)".
I believe it only started at the end of this summer.

It is leaking right at the connection to the radiator, bottom drivers side, and I suspect the rubber line is slightly splitting at the end.
Being that it's a small, slightly annoying leak, it doesn't affect anything besides getting the drivers side frame rail wet and leaving a small puddle in the garage.
It has probably drained only about a 1/3 of a gallon since I discovered it in August.

Because its only been an annoyance, I have not been keen on draining the system, getting a new hose, wrestling with the old hose to get it out, wrestling the new hose to get it in, and refilling/burping the system.
I have only tried replacing the spring clamp with a worm drive clamp for more compression on the connection to try and stop the leak.

But its still leaking. And seeing the small puddle under the car is pissing me off.

This leaves me with a few options:

1: Just buy an new hose assembly and replace the old leaky hose like I should have months ago.
I believe this is it: https://www.gmpartsonline.net/oem-pa...bC12OC1nYXM%3D

2: Delete the factory oil cooler with a delete kit.
I already have a mishimoto oil cooler installed and the factory oil cooler/warmer has a reputation for leaking eventually.
However, I have seen people write on here that the Mishi kit is not cut out to work on it's own and a better oil cooler kit will be necessary.

3: Replace the entire factory and Mishi kit with a complete system meant to take over the oil cooling.
Improved Racing sells this kit and it deletes the factory system and is almost 2x larger then the Mishi kit.
https://www.improvedracing.com/2010-...t-e5g-600.html

What are your guy's thoughts?
Just replace? Delete? or Overhaul?
With track day season coming in a few months, I need to get this solved before I fail tech.

Thanks for your input!

[cdb95z28]

The Mishi kit is not intended to replace the OE cooler. I deleted my OE cooler and track temps were not good. I tracked my '14 1LE and did my own cooler using the same IR cooler found in their Gen5 Camaro kit. I didn't use the IR kit because their adapter wasn't going to work wit h my AFE Phadt headers. Otherwise the IR kit is excellent.

[morepowerjoe]

I have been using the mishimoto oil cooler with the factory cooler deleted for a couple months now and haven't had any issues with it just yet. On long drives it stays at 210* and sitting in traffic it stays at 210*. With about 3 in a row wot pulls it has gotten to 218* in 80* weather. But I've been wondering how it will do at the track. You guys got me unsure now.

[cdb95z28]

Originally Posted by morepowerjoe

I have been using the mishimoto oil cooler with the factory cooler deleted for a couple months now and haven't had any issues with it just yet. On long drives it stays at 210* and sitting in traffic it stays at 210*. With about 3 in a row wot pulls it has gotten to 218* in 80* weather. But I've been wondering how it will do at the track. You guys got me unsure now.

Do you have a standalone oil temp probe and gauge? If you do not and are using the OE temp indication, it is not a true #. There's posts here on the forums about the OE indication being artificially generated. It will always max out at 266*F but in reality it could be much higher. When I switched to the Mishi I ran an Autometer oil temp gauge that took the temp at a bypass block of the LS3's oil cooler line mounting point. My gauge showed 294* at my next track day.

It is possible that the Mishi cooler mounting area was not the best. It also is nowhere near the size or efficiency of the IR cooler. I maximized the mounting location of the IR and after that install I had 217* max. That summer I ran a 45 minute full tilt session in the heat and it was perfect.

[morepowerjoe]

No I don't have a dedicated oil temp gauge I'm still using the factory stuff. But I thought I read that the factory gauge for 2012 - 2015 was a real gauge because it actually has 3 wires going to the sensor. I was wondering if the 2010 and 2011 have 2 wires or 3 going to the sensor? But your also measuring the oil temp before the cooler correct? Myself, I think I would like to know what the temp is after it has been cooled by the cooler going back to the engine.

[cdb95z28]

https://www.camaro5.com/forums/showthread.php?t=383352

https://www.camaro5.com/forums/showthread.php?t=381050

I believe how many wires going to the sensor is irrelevant, because the PCM's output to the DIC is not a true reading. A factory 4 gauge pack may show otherwise, but either way, with what I found, the Mishi alone wasn't enough. And that was with the Autometer probe at the area shown below in the red square using the above bypass adapter I showed in my previous post.

No, I am not measuring the oil before the cooler. As you can see oil flowing at the bypass adapter is on its way to the bearings. And in my case by using an oil filter sandwich adapter (at the blue square) to send oil to and return from the oil cooler the oil is cooled and filtered at the bypass adapter (red square) ready to rock n roll.

[Trawz]

Originally Posted by cdb95z28

The Mishi kit is not intended to replace the OE cooler. I deleted my OE cooler and track temps were not good. I tracked my '14 1LE and did my own cooler using the same IR cooler found in their Gen5 Camaro kit. I didn't use the IR kit because their adapter wasn't going to work with my AFE Phadt headers. Otherwise the IR kit is excellent.

That's exactly what I was afraid of. I do about 4-6 track days a year and keeping temps under control is always a good thing. I watch them closely on track, but like morepowerjoe, I am using the factory gauges.

What did you do in place of the IR kit? I have long tubes as well.
I was initially thinking of deleting the factory system and adding this:
https://www.holley.com/products/plum...arts/LS0013ERL
And running my Mishi lines into that and ditching the sandwich plate that the Mishi kit uses.

[morepowerjoe]

Originally Posted by cdb95z28

https://www.camaro5.com/forums/showthread.php?t=383352

https://www.camaro5.com/forums/showthread.php?t=381050

I believe how many wires going to the sensor is irrelevant, because the PCM's output to the DIC is not a true reading. A factory 4 gauge pack may show otherwise, but either way, with what I found, the Mishi alone wasn't enough. And that was with the Autometer probe at the area shown below in the red square using the above bypass adapter I showed in my previous post.

No, I am not measuring the oil before the cooler. As you can see oil flowing at the bypass adapter is on its way to the bearings. And in my case by using an oil filter sandwich adapter (at the blue square) to send oil to and return from the oil cooler the oil is cooled and filtered at the bypass adapter (red square) ready to rock n roll.

Attachment 1118063

So you have a bypass adapter at the oil filter housing? Mine is on the side of the block before the oil filter housing. By your picture I can't tell where it's at. And yeah I would like to know the same thing as the op but I think you already said your using a sandwich adapter. From what I saw it looks like the mishimoto oil cooler lines are the same as the IR cooler -10.

[cdb95z28]

Originally Posted by Trawz

That's exactly what I was afraid of. I do about 4-6 track days a year and keeping temps under control is always a good thing. I watch them closely on track, but like morepowerjoe, I am using the factory gauges.

What did you do in place of the IR kit? I have long tubes as well.
I was initially thinking of deleting the factory system and adding this:
https://www.holley.com/products/plum...arts/LS0013ERL
And running my Mishi lines into that and ditching the sandwich plate that the Mishi kit uses.

I used the IR cooler but a Mishi oil filter sandwich adapter and an IR thermostat. I had AFE PFadt headers. That Earl's adapter may work with your headers but my AFE headers, there was not enough room. And the IR Gen5 kit uses a similar adapter which also would not have had enough clearance. That's why I went with the Mishi sandwich adapter.

Originally Posted by morepowerjoe

So you have a bypass adapter at the oil filter housing? Mine is on the side of the block before the oil filter housing. By your picture I can't tell where it's at. And yeah I would like to know the same thing as the op but I think you already said your using a sandwich adapter. From what I saw it looks like the mishimoto oil cooler lines are the same as the IR cooler -10.

No, the bypass adapter is at the bypass pad above the oil filter pad. That would be the area in the red square in the above post. I had a Mishi non thermostatic oil filter (silver) sandwich adapter that fed the oil cooler. I had an IR thermostat block in line with the -10 lines. You want no smaller than -10 lines. The IR thermostat shows 185* but I later installed a 205* valve because initially the oil was too cold. I have a bunch more pics on my build thread:

https://www.camaro5.com/forums/showthread.php?t=395103









Attachment 1118158

[morepowerjoe]

Thank you for all the info. I have decisions to make.

[Trawz]

Thanks again cdb. As usual, great info.
I have a "sponsorship" with Mishimoto, so I might try and piece together a custom kit though them with my discount.
Looks like they have a very similar dual pass heat exchanger to the IR one:
https://www.mishimoto.com/dual-pass-...ler-large.html
Plus a full line of extra lines and fittings.

I also have some thinking to do.

As for your actual oil temp sensor, where did you rig that up? I see you put the sensor on the block off plate, but what about the gauge? A pillar pod?
That is on my list of things to do.

[cdb95z28]

I had a a 3d printed ebay gauge mount for use in the driver's side HVAC vent.
A few pics on my gauge for sale ad:

https://www.camaro5.com/forums/showthread.php?t=608250

[manuelram16]

Anybody ever replaced the Factory Oil Cooler outlet Hose? have the same leak in my 2014 SS and tried the same hose clamp deal to no avail, when looking under car hose seems complicated to replace....

[Trawz]

Originally Posted by manuelram16

Anybody ever replaced the Factory Oil Cooler outlet Hose? have the same leak in my 2014 SS and tried the same hose clamp deal to no avail, when looking under car hose seems complicated to replace....

I am actually am going to attempt this weekend.
After weighing my options, I decided to just replace the factory hose to fix the leak.
I really wanted to delete the factory cooler and convert fully to an aftermarket solution, but its not fanatically in the cards. (recently bought a new house and my 1LE needs new tire and brakes before the new track season starts)
I bought this:
https://www.gmpartsonline.net/oem-pa...-hose-22939917

It looks like I will need to remove an E-clip at the cooler to get the original off and reuse it to secure the new one. But it does not look fun.