General Diesel Discussion Talk about general diesel engines (theory, etc.) If it's about diesel, and it doesn't fit anywhere else, then put it right in here.
Sponsored by:
Sponsored by: CARiD

gm 6.2

Thread Tools
 
Search this Thread
 
Old Dec 5, 2006 | 08:20 PM
  #1  
Garnet Kid's Avatar
Thread Starter
Registered User
 
Joined: Dec 2003
Posts: 52
Likes: 0
From: Summerland BC
gm 6.2

Is there anything else that would cause oil in the coolant besides a headgasket problem with these engines??
Reply
Old Dec 5, 2006 | 08:52 PM
  #2  
electrifried's Avatar
Registered User
 
Joined: Feb 2004
Posts: 176
Likes: 0
From: Columbus, Indiana
Heads and blocks have been known to crack (especially on 6.5). Headgaskets are a common problem in that family.
Reply
Old Dec 5, 2006 | 10:08 PM
  #3  
Devin_01's Avatar
Registered User
 
Joined: Sep 2006
Posts: 159
Likes: 0
From: Eatonia, Saskatchewan
I cant exactly rememmber but does the oil cooler lines go into the rad???? Maybe it leaking in the rad some were. Just a thought. Its been awhile since ive had my 6.2
Reply
Old Dec 6, 2006 | 06:50 AM
  #4  
DieselDaze's Avatar
Administrator
 
Joined: Apr 2002
Posts: 3,360
Likes: 5
From: MidWest
My memory is pretty dusty, but I do believe there is a built in engine oil cooler in the radiator.
Perhaps its a leak in the radiator allowing the fluids to mix.
However, those engines are known to have weak head gaskets.
Although, if it makes you feel any better, I had 405,000 miles on my 6.2 and never had internal engine trouble at all.

Rich.
Reply
Old Dec 6, 2006 | 07:27 AM
  #5  
catmandoo's Avatar
Registered User
 
Joined: Dec 2004
Posts: 10
Likes: 0
ya know i myself have had probably a dozen 6.2 and 6.5's and have yet to pull a head.and yes the oil cooler is routed into the radiator.that might be a good place to start lines will go up to the rad on the drivers side then go across the radiator right in front of the fan and into the pass side.
Reply
Old Dec 6, 2006 | 09:37 AM
  #6  
Garnet Kid's Avatar
Thread Starter
Registered User
 
Joined: Dec 2003
Posts: 52
Likes: 0
From: Summerland BC
Thanks guys, This was my son's truck that I gave to him after he graduated from university and he gave it back a few years later. I painted it and sold it to a friend of a friend a couple years ago, and now it has oil showing up in the coolant.
Reply
Old Dec 6, 2006 | 09:13 PM
  #7  
CoastalDav's Avatar
Registered User
 
Joined: May 2002
Posts: 1,425
Likes: 2
From: Melbourne, Florida
I believe it was the 5.7 that needed head gaskets every 40,000 miles wether you like it or not. The 6.2 has 5 head bolts around each cylinder and is almost bullet proof in that area, unless you run them a 95% for a long duration. They will blow one than. Best way to tell if its a Head Gasket is to look in the coolant recovery bottle. If its bubbling, you got a bad HG.

Dave
Reply




All times are GMT -5. The time now is 10:50 AM.