Help needed on solving constant problems with my 6.0
Fleet Owner
Joined: Nov 2003
Posts: 27,912
Likes: 3,624
Could you explain some more regarding injectors being killed by a failed EGR cooler?
Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
sure mark.... your just overthinking.... 
what happens is the coolant will enter the main oil supply for the engine via one of 3 ways.
1) drain past the rings after sitting
2) recondense from the steam form in the oil pan.
3) stick to the wall of the cyclinder and get wiped down by the oil ring.
when this happens we will have a high level of gylcol and whater mixed in with the oil. the mix is then picked back up by the lp pump and sent to the high side system were its pump threw the injectors and they dont tend to like that much.
what happens is the coolant will enter the main oil supply for the engine via one of 3 ways.
1) drain past the rings after sitting
2) recondense from the steam form in the oil pan.
3) stick to the wall of the cyclinder and get wiped down by the oil ring.
when this happens we will have a high level of gylcol and whater mixed in with the oil. the mix is then picked back up by the lp pump and sent to the high side system were its pump threw the injectors and they dont tend to like that much.
Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
sorry I dont. I can tell you the one I suspect as the cause have injector failers shortly after egr cooler fails with oil and water/coolant in the pan
Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
no way to know how late it is. soem times things go good sometimes not so good.
Lead Driver
Joined: Mar 2010
Posts: 5,505
Likes: 256
From: Woodbridge, Ontario, CA
ANY EGR/oil cooler replacement mandates changing the oil and filter and refilling with new coolant (at least for me it does anyway).
Fleet Owner
Joined: Nov 2003
Posts: 27,912
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New User
Joined: Apr 2011
Posts: 6
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From: Minnesota
just throwing this out there about your truck having low power. have you checked exhaust back pressure sensor/ and tube to sensor. We run 11 econolines with 6.0L and along with my personal truck and they all act low on power and shift really rough when the sensor and/or sensor tube is plugged. im not 100% sure (somewhere around 14psi i think) on the spec but it should drop psi fast when u let off the throttle and not have much back pressure because you dont have a muffler.
Thread Starter
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Posting Guru
Joined: Oct 2005
Posts: 1,551
Likes: 1
From: Hickory, North Carolina
gutnther you will never get rid of the lag. its boost lag. just not gonna happen.
The best you may really hope for is by possible going to a custom ficm tune. The few I have drive seemed to have less lag.
what color smoke. black,blue or white? if its black then its unburnt fuel. to some extent that maybe normal too.
The best you may really hope for is by possible going to a custom ficm tune. The few I have drive seemed to have less lag.
what color smoke. black,blue or white? if its black then its unburnt fuel. to some extent that maybe normal too.
Lead Driver
Joined: Feb 2005
Posts: 7,951
Likes: 2,658
From: The Great State of Texas
After a year with the new EGR valve, my truck experienced the same problem again recently, but I know it just a matter of time and I'll need to replace it again. This is with the latest flash and the new designed EGR valve.
Good luck....
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Posting Guru
Joined: Oct 2005
Posts: 1,551
Likes: 1
From: Hickory, North Carolina
Was your EGR valve replaced or was it cleaned. Your symptom sounds like my truck when the EGR valve wasn't operating properly before it eventually failed. Lacked low end power, very sluggish on take off, and blew out black smoke was related to my EGR valve.
After a year with the new EGR valve, my truck experienced the same problem again recently, but I know it just a matter of time and I'll need to replace it again. This is with the latest flash and the new designed EGR valve.
Good luck....
After a year with the new EGR valve, my truck experienced the same problem again recently, but I know it just a matter of time and I'll need to replace it again. This is with the latest flash and the new designed EGR valve.
Good luck....
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