egr delete question
Fleet Owner
Joined: Nov 2003
Posts: 27,881
Likes: 3,595
Not unless the jb weld fails.
Personally, I would not want the possibility of coolant out the exhaust either, but I think a cooler failure is quite a bit less likely without the flow of exhaust gas. Yes, when you leave an open path for exhaust gas to reach the cooler, you will have some temperature differences at the heat exchanger metal. However, with no acual flow on the gas side, the thermal stresses on the heat exchanger will be a lot less.
Personally, I would not want the possibility of coolant out the exhaust either, but I think a cooler failure is quite a bit less likely without the flow of exhaust gas. Yes, when you leave an open path for exhaust gas to reach the cooler, you will have some temperature differences at the heat exchanger metal. However, with no acual flow on the gas side, the thermal stresses on the heat exchanger will be a lot less.
Laughing Gas
Joined: May 2006
Posts: 1,192
Likes: 0
From: Oakville, Ontario
Sorry to bust in here but I have been ready alot about the EGR delete (kit). Before I decide to delete my EGR. I need a "EGR Delete 101" lesson. Please explain to me or fill in the blanks of how the EGR works. My understanding from reading these post is as follows.
1st Some exhaust gas is passed back up through a pipe that has a jacket of some sort with coolant passing though to cool the exhaust gases before it reenters the intake.
2nd The EGR valve opens to allow only a certain amount of exhaust gas to enter the intake.
3rd These gas have been cooled and ready to be mixed with fresh air to enter the turbo.
Now I have heard about an EGR upgrade, were as the pipe that carries the exhaust back to the EGR valve is of better quality and has less of a failure rate.
Am I clear on how it works? If not please fill in the blanks or call me stupid but I need to know all this before I decide what I will do for my 6.0 to make her last.
1st Some exhaust gas is passed back up through a pipe that has a jacket of some sort with coolant passing though to cool the exhaust gases before it reenters the intake.
2nd The EGR valve opens to allow only a certain amount of exhaust gas to enter the intake.
3rd These gas have been cooled and ready to be mixed with fresh air to enter the turbo.
Now I have heard about an EGR upgrade, were as the pipe that carries the exhaust back to the EGR valve is of better quality and has less of a failure rate.
Am I clear on how it works? If not please fill in the blanks or call me stupid but I need to know all this before I decide what I will do for my 6.0 to make her last.
Fleet Owner
Joined: Nov 2003
Posts: 27,881
Likes: 3,595
1st Some exhaust gas is passed from your up-pipe to a horizontal EGR cooler (a heat exchanger). Coolant comes to this heat exchanger from the oil coooler (in series). Both the oil cooler and the EGR cooler have small passageways for the coolant side flow.
The EGR valve is commanded to open by the PCM to allow only a certain amount of exhaust gas to enter the intake - based on anumber of parameters monitored by the PCM.
The cooled gas is mixed with fresh air and flows into the intake - downstream of the turbo compressor.
There is an "EGR Cooler upgrade", were the cooler heat exchanger is of better quality and has less of a failure rate.
I will add in a diagram in an edit in just a second.
Poor quality, but here it is .....
https://www.ford-trucks.com/forums/p...ictureid=13246
The EGR valve is commanded to open by the PCM to allow only a certain amount of exhaust gas to enter the intake - based on anumber of parameters monitored by the PCM.
The cooled gas is mixed with fresh air and flows into the intake - downstream of the turbo compressor.
There is an "EGR Cooler upgrade", were the cooler heat exchanger is of better quality and has less of a failure rate.
I will add in a diagram in an edit in just a second.
Poor quality, but here it is .....
https://www.ford-trucks.com/forums/p...ictureid=13246
Senior User
Joined: Nov 2004
Posts: 197
Likes: 0
From: Washington
Here's some pictures of the EGR modifications I did for a guy. I've been doing this as an option for local dealerships for the EGR delete. It looks stock and leaves the valve in place to cycle. I've been running my for a year with no problems. Plus I run her hard and also pull a 11,500 fifth wheel in Washington state. With 6+ percent grades on alot of hills, it's a great testing place.
http://s617.photobucket.com/albums/t...view=slideshow
http://s617.photobucket.com/albums/t...view=slideshow
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Elder User
Joined: Jun 2005
Posts: 710
Likes: 0
From: Fallon,NV
Here's some pictures of the EGR modifications I did for a guy. I've been doing this as an option for local dealerships for the EGR delete. It looks stock and leaves the valve in place to cycle. I've been running my for a year with no problems. Plus I run her hard and also pull a 11,500 fifth wheel in Washington state. With 6+ percent grades on alot of hills, it's a great testing place.
http://s617.photobucket.com/albums/t...view=slideshow
http://s617.photobucket.com/albums/t...view=slideshow
Senior User
Joined: Nov 2004
Posts: 197
Likes: 0
From: Washington
That looks great and definitely will work on the 03-04 trucks. The problem I'm having is that my truck is an 05 and it has the scoop in the up-pipe which needs to be deleted too. That's why I think I'll be going with the "sneaky up-pipe" from Elite since it still looks stock, but they take the scoop out and block off the flow to the EGR cooler.
Look alittle closer, my truck is an 2005. The scoop is already been cut out of my up pipe. Also to up pipe is blocked off from the flow of exhaust gas.
Elder User
Joined: Jun 2005
Posts: 710
Likes: 0
From: Fallon,NV
Oh, my mistake. Nice job on the fabrication. Now that you've done this mod to your truck, what differences have you noticed?
Also, what's your address so that I can send you my up-pipe? Just playin'.
Also, what's your address so that I can send you my up-pipe? Just playin'.
New User
Joined: Jun 2009
Posts: 6
Likes: 0
From: Wrightsville Pa.
I pulled my up pipe yesterday. It took about 30 minutes with a die grinder and a 7" carbide bur and the scoop is gone. I got out the stainless wire, loaded the MIG and welded the up pipe/egr hole shut.
I put it back together and it seemed that there was more boost and quiker. I guess that makes sense since 25% of the exhaust, to the turbo was blocked. I left the egr valve unplugged. So far so good.
I put it back together and it seemed that there was more boost and quiker. I guess that makes sense since 25% of the exhaust, to the turbo was blocked. I left the egr valve unplugged. So far so good.
Laughing Gas
Joined: May 2006
Posts: 1,192
Likes: 0
From: Oakville, Ontario
Thanks Bismic and Pipwelder71. Now with the delete in place will the truck pass Gov. emissions? Here in southern Ontario we have to have out vehicles checked every two years. If not I probably will have to go the upgraded route and take my chances, on a future failure. Crossing my fingers. Anyway the info with diagrams and pics helped. Thanks
Elder User
Joined: Jun 2005
Posts: 710
Likes: 0
From: Fallon,NV
I pulled my up pipe yesterday. It took about 30 minutes with a die grinder and a 7" carbide bur and the scoop is gone. I got out the stainless wire, loaded the MIG and welded the up pipe/egr hole shut.
I put it back together and it seemed that there was more boost and quiker. I guess that makes sense since 25% of the exhaust, to the turbo was blocked. I left the egr valve unplugged. So far so good.
I put it back together and it seemed that there was more boost and quiker. I guess that makes sense since 25% of the exhaust, to the turbo was blocked. I left the egr valve unplugged. So far so good.