01 GMC oil cooler conn. leak

cowboy · 03-29-2009, 03:18 PM

I have the 6.0 in my 2500HD. I noticed the oil cooler tube is leaking at the connection to the radiator. Is their an o-ring that may be the cause? If so can it be replaced or is there an other reason for the leak. i dont want to have to replace the whole assy. at $70.00 from NAPA.

leolkfrm · 03-29-2009, 04:28 PM

the threaded connection?? if so use some blue-bloc sealer on it!

cowboy · 03-30-2009, 06:14 AM

It appeared to be leaking where the pipe goes into the radiator fitting. I know there is a clip that holds the tubing into the radiator but im not sure if there is an oring to prevent leaking or if its how the shape of the fittings match up.

jomicasa · 07-24-2009, 05:48 PM

Quote:

Originally Posted by cowboy

I have the 6.0 in my 2500HD. I noticed the oil cooler tube is leaking at the connection to the radiator. Is their an o-ring that may be the cause? If so can it be replaced or is there an other reason for the leak. i dont want to have to replace the whole assy. at $70.00 from NAPA.

Yeah there is an o ring in the engine oil side ,but there is none in the transmission side

NCroadracer · 07-24-2009, 11:46 PM

There's a O ring, it's in the threaded fitting that goes into the radiator.. If that's the cause , they don't cost much at all.. replace the fitting and be done with it.
Make sure to inspect the pipe for signs of kinking from being side loaded or bent/worn where the o ring seals against it. If it is .. it will only leak again.. and you will need new cooler lines too.

bradrhale · 07-25-2009, 06:20 AM

Last Activity: 04-01-2009 12:36 PM

i dont think the cowboy is coming back. maybe he still doesnt hae that problem after nearly 4 months.

leolkfrm · 07-25-2009, 06:43 AM

Maybe he doesn't like us

it has been a while

NCroadracer · 07-25-2009, 11:32 PM

I have an idea... Lets collectively hate him for not coming back.

That'll show him.. and maybe deter others from coming here and making a post, only to abandom it afterwards.

zembonez · 07-26-2009, 12:42 PM

The nerve of some people...

BernieB · 07-26-2009, 01:16 PM

Quote:

Originally Posted by NCroadracer

I have an idea... Lets collectively hate him for not coming back.

That'll show him.. and maybe deter others from coming here and making a post, only to abandom it afterwards.

I have a better idea...

03-29-2009, 03:18 PM	#1
cowboy Junior Member Join Date: Mar 2009 Posts: 4	01 GMC oil cooler conn. leak I have the 6.0 in my 2500HD. I noticed the oil cooler tube is leaking at the connection to the radiator. Is their an o-ring that may be the cause? If so can it be replaced or is there an other reason for the leak. i dont want to have to replace the whole assy. at $70.00 from NAPA.

03-29-2009, 04:28 PM	#2
leolkfrm Senior Member Join Date: Mar 2008 Location: N.Y. Posts: 4,300	the threaded connection?? if so use some blue-bloc sealer on it! __________________ 4 wheels move the body 2 wheels move the soul B.W.A.I

07-25-2009, 06:43 AM	#7
leolkfrm Senior Member Join Date: Mar 2008 Location: N.Y. Posts: 4,300	Maybe he doesn't like us it has been a while __________________ 4 wheels move the body 2 wheels move the soul B.W.A.I

07-26-2009, 12:42 PM	#9
zembonez Full Member Join Date: Jul 2009 Location: Cibolo Texas Posts: 132	The nerve of some people... __________________ Zembonez - AKA Crazy Clown 2007 GMC Sierra RCSB

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03-30-2009, 06:14 AM	#3
cowboy Junior Member Join Date: Mar 2009 Posts: 4	It appeared to be leaking where the pipe goes into the radiator fitting. I know there is a clip that holds the tubing into the radiator but im not sure if there is an oring to prevent leaking or if its how the shape of the fittings match up.

07-24-2009, 11:46 PM	#5
NCroadracer Senior Member Join Date: Apr 2007 Posts: 295	There's a O ring, it's in the threaded fitting that goes into the radiator.. If that's the cause , they don't cost much at all.. replace the fitting and be done with it. Make sure to inspect the pipe for signs of kinking from being side loaded or bent/worn where the o ring seals against it. If it is .. it will only leak again.. and you will need new cooler lines too.

07-25-2009, 06:20 AM	#6
bradrhale Senior Moderator Join Date: Apr 2006 Location: Texas Posts: 8,018	Last Activity: 04-01-2009 12:36 PM i dont think the cowboy is coming back. maybe he still doesnt hae that problem after nearly 4 months.

07-25-2009, 11:32 PM	#8
NCroadracer Senior Member Join Date: Apr 2007 Posts: 295	I have an idea... Lets collectively hate him for not coming back. That'll show him.. and maybe deter others from coming here and making a post, only to abandom it afterwards.

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