Oil leak

MrRuss · 02-25-2023, 12:59 PM

Hey fellow forum members,

I have been seeing a pretty significant oil leak from my 2016 SS Camaro and got under the car today. Found leak coming from the front bolt of this "block" on the driver side of the oil pan. Guessing it is part of the oil cooling system. Both the lower bolts (10mm) were not tight, the front one where the leak was very loose. I tightened them up but could not get to the upper ones, only one of which I could see from the bottom plus I have been under the weather the last few days. I plan on getting it lifted properly soon and see if I can get to the upper bolts and check them.

What is the block and was it likely leaking only due to the loose bolts?

Gunkk · 02-25-2023, 02:33 PM

Yes it's the engine oil cooler and yes there are 4 bolts. Torque to 89 LB-INCHES. 7-1/2 ft-lbs.

Seems to be a few loose bolts there. Might be something we need to start checking every other oil change.

L78toLT1 · 02-25-2023, 02:45 PM

Quote:

Originally Posted by Gunkk

Yes it's the engine oil cooler and yes there are 4 bolts. Torque to 89 LB-INCHES. 7-1/2 ft-lbs.

Seems to be a few loose bolts there. Might be something we need to start checking every other oil change.

I guess I'm probably wrong, but I've had my motor apart several times and I could swear that the oil cooler bolt holes are blind i.e. not open to oil on the inside of the pan. However, if these bolts are the source of the OP's leak then I must be wrong...

KingLT1 · 02-25-2023, 03:21 PM

Common issue and mine leaked the same way because the bolts were loose. Once I tightened them up the leak went away. It's normally just the lower 2 bolts that are the issue.

L78toLT1 · 02-25-2023, 03:23 PM

Quote:

Originally Posted by KingLT1

Common issue and mine leaked the same way because the bolts were loose. Once I tightened them up the leak went away. It's normally just the lower 2 bolts that are the issue.

Looks like I'm right, and I was wrong lol!

KingLT1 · 02-25-2023, 03:24 PM

Quote:

Originally Posted by L78toLT1

Looks like I'm right, and I was wrong lol!

MrRuss · 02-26-2023, 10:20 AM

Thanks Gunkk for the diagram, that's exactly what I was looking for.

These forums are great!!

N Camarolina · 02-26-2023, 10:48 AM

So as a slight aside, this question about dripping oil, loose bolts, and that diagram of the oil cooler attachment has we wondering how the whole system works. I'll provide my guess here, and ask others to confirm or correct what I've got wrong:

- Oil cooler block brings in oil from oil pan, cools it, and sends it back to oil pan (two ports presumably).
- Oil cooler block has oil coming in on one side, engine coolant on the other, with some kind of internal dividing interface that allows heat exchange between the two fluids.
- Heated engine coolant from oil cooler block is pumped to front radiators (main or aux) whereupon the heat is cooled through air exchange.

02-25-2023, 12:59 PM	#1
MrRuss Drives: 2016 Camaro 2SS Join Date: Mar 2018 Location: Chandler, AZ Posts: 207	Oil leak Hey fellow forum members, I have been seeing a pretty significant oil leak from my 2016 SS Camaro and got under the car today. Found leak coming from the front bolt of this "block" on the driver side of the oil pan. Guessing it is part of the oil cooling system. Both the lower bolts (10mm) were not tight, the front one where the leak was very loose. I tightened them up but could not get to the upper ones, only one of which I could see from the bottom plus I have been under the weather the last few days. I plan on getting it lifted properly soon and see if I can get to the upper bolts and check them. What is the block and was it likely leaking only due to the loose bolts? Attached Images __________________ Mr Russ Tim "the tool man" Taylor is my hero My Garage: '16 Chevrolet Camaro 2SS, Summit White, Adrenaline Red -- Rotofab CAI, Soler TB, 1 7/8 coated LT's, Full 3" mids, 3" Stainless Works NPP mufflers, Flex Fuel, E85/91 tuned '20 Honda Oddysey Elite 25th Anniversary Edition --wifes car, she said "No more SUV's" after the 2 CX-9's totaled

02-25-2023, 02:33 PM	#2
Gunkk Thank you Al Oppenheiser! Drives: Red Hot A10 ZL1 Convertible Join Date: Jun 2017 Location: Sarasota, FL Posts: 4,978 View My Garage	Yes it's the engine oil cooler and yes there are 4 bolts. Torque to 89 LB-INCHES. 7-1/2 ft-lbs. Seems to be a few loose bolts there. Might be something we need to start checking every other oil change. Attached Images

02-25-2023, 03:21 PM	#4
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 6,800	Common issue and mine leaked the same way because the bolts were loose. Once I tightened them up the leak went away. It's normally just the lower 2 bolts that are the issue. __________________ 2016 NFG 1SS A8 Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA

02-26-2023, 10:20 AM	#7
MrRuss Drives: 2016 Camaro 2SS Join Date: Mar 2018 Location: Chandler, AZ Posts: 207	Thanks Gunkk for the diagram, that's exactly what I was looking for. These forums are great!! __________________ Mr Russ Tim "the tool man" Taylor is my hero My Garage: '16 Chevrolet Camaro 2SS, Summit White, Adrenaline Red -- Rotofab CAI, Soler TB, 1 7/8 coated LT's, Full 3" mids, 3" Stainless Works NPP mufflers, Flex Fuel, E85/91 tuned '20 Honda Oddysey Elite 25th Anniversary Edition --wifes car, she said "No more SUV's" after the 2 CX-9's totaled

02-26-2023, 10:48 AM	#8
N Camarolina Drives: 2021 2SS 1LE Join Date: Aug 2020 Location: Cary, NC Posts: 805	So as a slight aside, this question about dripping oil, loose bolts, and that diagram of the oil cooler attachment has we wondering how the whole system works. I'll provide my guess here, and ask others to confirm or correct what I've got wrong: - Oil cooler block brings in oil from oil pan, cools it, and sends it back to oil pan (two ports presumably). - Oil cooler block has oil coming in on one side, engine coolant on the other, with some kind of internal dividing interface that allows heat exchange between the two fluids. - Heated engine coolant from oil cooler block is pumped to front radiators (main or aux) whereupon the heat is cooled through air exchange.

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