GU IV 3.0 Oil Cooler Leak?

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8th December 2015, 07:14 PM
bsteveo

GU IV 3.0 Oil Cooler Leak?

Hi all. Recently serviced my '06 GU IV 3.0. About 2 weeks later I've noticed a small leaking of oil. I've hosed and degreased the underside of the vehicle as the oil drips and leaks onto the diff, motor and even hits the exhaust (this is what brought my attention to the leak). It appears to me it's the oil cooler gasket as it's just slightly towards the right side of the oil filter drip tray (if you're under the car). Filter is tightened to the correct nm as specified by the manual, right amount of oil was put in and all seals were lubed up. So apart from the oil cooler gasket, I have no idea what the leak could be as it is minimal. Any recommendations for a service center in Melb that can help with this issue would be appreciated. Thank you.
8th December 2015, 08:03 PM
threedogs

What side of town are you on ???? you can see
David at Guest 4wd in Fairfield or Paul out at outback 4wd in Bayswater
8th December 2015, 08:38 PM
mudski

Its not common for the cooler to leak. Have a look at the oil drain tube from the turbo. The gasket from the tube to turbo is common'ish to leak.
Also look at the intercooler. While its on top of the motor, if this is leaking, and you dont have a catch can, and your motor is a heavy breather, oil will be evident thats for sure.

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8th December 2015, 08:41 PM
bsteveo

Quote:

Originally Posted by threedogs

What side of town are you on ???? you can see
David at Guest 4wd in Fairfield or Paul out at outback 4wd in Bayswater

I'm in the west, but don't mind driving for good service. Drive to the north and east for work anyway.
8th December 2015, 08:43 PM
bsteveo

Quote:

Originally Posted by mudski

Its not common for the cooler to leak. Have a look at the oil drain tube from the turbo. The gasket from the tube to turbo is common'ish to leak.
Also look at the intercooler. While its on top of the motor, if this is leaking, and you dont have a catch can, and your motor is a heavy breather, oil will be evident thats for sure.

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Didn't think it was common as searching on here and on google resulted in no answers. You talking about the drain tube thats under the oil filter tray? If so it's not coming from there.
8th December 2015, 08:49 PM
bsteveo

1 Attachment(s)

Attachment 63167

the black tube there is where the oil filter is, just to give a rough idea of where the leak is coming from
8th December 2015, 08:50 PM
bsteveo

Intercooler seems clean also
8th December 2015, 08:56 PM
mudski

Quote:

Originally Posted by bsteveo

Didn't think it was common as searching on here and on google resulted in no answers. You talking about the drain tube thats under the oil filter tray? If so it's not coming from there.

No, the tube from the turbo to the block. Where it bolts to the turbo. Can often leak.

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8th December 2015, 09:12 PM
bsteveo

I'll look into it after work tomorrow, last i checked the turbo and surrounds were clean and free of oil, it's just that spot under the car
12th December 2015, 09:27 AM
bsteveo

1 Attachment(s)

Quote:

Originally Posted by mudski

No, the tube from the turbo to the block. Where it bolts to the turbo. Can often leak.

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Sorry for the delay, 'tomorrow after work' never got round to happening lol. Just had a thorough check of everything. Intercooler is clean, same with all the hoses, all hoses to the turbo. All connections to the turbo are dry, no oil on in or around it either. Nothing coming from the filter or tray either. I've attachedAttachment 63204 a broader photo, The reason I say oil cooler is because when laying under the car it looks like where the cooler and block are connected. If it's not that I have no idea what and I hope someone can help me so I can stop putting off driving her.
12th December 2015, 05:44 PM
bsteveo

Any ideas anyone?
13th December 2015, 05:55 PM
mudski

Quote:

Originally Posted by bsteveo

Any ideas anyone?

You will have a better idea than any of us as you have the car there. We dont. You will have take a better look.
Degrease that area and then see exactly where the leak is coming from.
20th December 2015, 06:41 PM
Col.T

G'day mate (although a bit late).
Presume all is fixed by now.
If not, a possible cause is simply from the oil filter housing. If it's not wiped dry after changing the filter, or if there's been a minor spill a small quantity dribbles down into that area. It's not an ongoing leak.
As Mudski says, clean it all and keep watching.
Luck
Col
23rd December 2015, 04:44 PM
bsteveo

Quote:

Originally Posted by Col.T

G'day mate (although a bit late).
Presume all is fixed by now.
If not, a possible cause is simply from the oil filter housing. If it's not wiped dry after changing the filter, or if there's been a minor spill a small quantity dribbles down into that area. It's not an ongoing leak.
As Mudski says, clean it all and keep watching.
Luck
Col

Hey Col. Still not fixed yet, just finished up work for the year today and have 2 weeks off so going to begin my investigations tomorrow. I have a feeling you're right, as I had no leaks at all before I services the car. The filter housing was tightened to the correct nm of torque as per my service manual but it could still be leaking, the surround of the housing is dry which has me stuffed. Going to book into a mechanic in the coming weeks if I can find anything around the housing.

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23rd December 2015, 04:58 PM
threedogs

Sometimes and I mean sometimes a mechanic wont change the "O" ring on the filter housing,
or the drip tray tube may be blocked and only now its free..
It happened to me ,the "O" ring thing gave me the yips I tell you.
23rd December 2015, 05:21 PM
bsteveo

Quote:

Originally Posted by threedogs

Sometimes and I mean sometimes a mechanic wont change the "O" ring on the filter housing,
or the drip tray tube may be blocked and only now its free..
It happened to me ,the "O" ring thing gave me the yips I tell you.

I did the service my self so the housing ring was changed 100%, all lubed up properly and tightened to the correct nm. The turbo, filter housing and tray aren't oily, a bit greasy though. After degreasing and a good inspection the oil cooler doesn't seem to be leaking , but its a small metal block just below where the drip tray is that's connected to the actual motor block. That small gap is where its actually dripping from, saturating my diff and exhaust . Also found a few drops of coolant around the pullys, which also suspects the oil cooler. Ugh so frustrating being new to all this.

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4th January 2016, 09:47 PM
bsteveo

Quote:

Originally Posted by threedogs

Sometimes and I mean sometimes a mechanic wont change the "O" ring on the filter housing,
or the drip tray tube may be blocked and only now its free..
It happened to me ,the "O" ring thing gave me the yips I tell you.

Threedogs you were close mate. Finally got it round to a mechanic, turns out the O ring on the filter was cracked. I literally just changed it and tightened the thing to the correct nm, must have been a dodgy seal.

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