Internal Cooler
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Senior User
Joined: Jun 2004
Posts: 139
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From: Breaux Bridge,La.
Internal Cooler
I have a 2004 6.0 PSD w\90000 miles as I was returning home from a fishing trip about a hundred miles from home exited off Interstate and as I accelerated the engine sounded kind of rough but soon quieted down but about two miles down the road white smoke bellowed out the exhaust and enguled eveyrthing and I could smell coolant and noticed the temp gauge climbing, pulled off and the smoke seemed to disapate but I shut it down anyway. Checked all hoses no problem there no water in oil so was at a lose so had it towed to dealer. Was told it was probably an internal cooler. Have never heard of such a thing and wonder if some one can enlighten me. It will be Monday the 19th before they can look at it and I would like a little knowledge before the jump off the deep end. Thanks
Super Moderator
Joined: Jul 2004
Posts: 21,113
Likes: 3,939
From: Ohio
The internal oil cooler plugs, restricting coolant flow. The EGR cooler fails from over heating sending coolant out the exhaust. Both need to be replaced when a failure occurs for example: EGR cooler only, does not address the internal oil cooler. If you choose to delete, you still must replace the internal oil cooler.
The 6.0L Bible in the Tech Folder has information showing components and flow.
The 6.0L Bible in the Tech Folder has information showing components and flow.
Logistics Pro
Joined: Mar 2007
Posts: 4,604
Likes: 4
From: Claremore, OK
The white smoke was coming from your EGR cooler that failed because it was more than likely starved of coolant. Which happened when the oil cooler clogged. Some what common problem with the 6.0L; if you catch it quick enough by monitoring the engine via aftermarket gauges you can usually get by with only an oil cooler change. As John has already pointed out, when they replace the EGR cooler...make sure they replace the oil cooler as well. Or you'll be back the shop to have another EGR cooler replaced within months.
I'm hitting easy street
Joined: Nov 2009
Posts: 6,395
Likes: 27
From: Central Oregon
Here is a link of the job. Gives you an idea how deep you go to change it out.
http://www.newyorkmustangs.com/forum...ld-t13149.html
I have not done this repair, a lot of guys on here have. And have had success doing this.
Some in a garage and some in a driveway.
http://www.newyorkmustangs.com/forum...ld-t13149.html
I have not done this repair, a lot of guys on here have. And have had success doing this.
Some in a garage and some in a driveway.
Lead Driver
Joined: Feb 2011
Posts: 8,241
Likes: 155
From: L.A. (Lower Alabama)
You did good having it towed also. Driving it like that can cause even more damage. I would suggest not to start it either. Coolant can leak into the cylinder with the intake valve open and fill it with coolant causing a hydrolock. Starting it with that condition can squirt head gaskets or even bend connecting rods.
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