egr delete questions??
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Senior User
Joined: May 2008
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From: 100 Mile House, BC Canada
egr delete questions??
Just got my truck back from getting an egr delete, oil cooler, and stc upgrade. My trucks an 06 and the CEL hasnt come on and i drove it for about 40 kms, will it come on later or possibly not at all?? My temps are now ranging between 6-10 degrees diff. I've read that the temp spread doesnt matter with a delete.....why is that??
Post Fiend
Joined: Oct 2005
Posts: 10,626
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From: Plano TX and Brentwood TN
It is and it isn't. With regard to deleting of the EGR, it doesn't matter. However, with regard to the overall "health" of the truck, I would still like to see the spread.
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Senior User
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From: 100 Mile House, BC Canada
It's possible that it won't through a code, but with it being an 06, I can't imagine it being all that likely, however, not knowing what type of "delete" that you have, the answer could have something to do with that.
It is and it isn't. With regard to deleting of the EGR, it doesn't matter. However, with regard to the overall "health" of the truck, I would still like to see the spread.
It is and it isn't. With regard to deleting of the EGR, it doesn't matter. However, with regard to the overall "health" of the truck, I would still like to see the spread.
Post Fiend
Joined: Oct 2005
Posts: 10,626
Likes: 7
From: Plano TX and Brentwood TN
I have a Customs Diesel delete kit with uppipe, which i think is the same as a sinister. I didnt get to drive it today but is it normal for a code to show up later or would it have by now? Can you explain to me why it doesnt matter with regards to the temp delta, how else will i know when my oil cooler's plugging up? thanks
As to the code, it's possible if the sensors haven't reached their threshold for throwing codes about it. There might be "soft codes" in the computer that aren't triggering a CEL that might show the computer is sensing something, just not enough to trigger the CEL. It's also possible that maybe your strategy doesn't have what is affectionately known as the "EPA Limp Mode" tuning.
Elder User
Joined: Aug 2010
Posts: 675
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From: NV
The delta lets you know when the EGR cooler is having problems. Typically those problems are caused by the oil cooler being plugged. Which still has the potential of happening regardless of that EGR cooler being there or not. One of the reasons why I never was an advocate of the EGR delete. You no longer have the EGR cooler. Now, could there still be a delta even without the EGR cooler there that's meaningful. Possible, I haven't heard of a need for it (yet).
Post Fiend
Joined: Oct 2005
Posts: 10,626
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From: Plano TX and Brentwood TN
You can have a higher engine operating temp and not have a change in the delta and have a plugged oil cooler. The best scenario is to know what readings you normally get from the ECT and EOT independently of one other to know what your normal readings are for various "activities".
Elder User
Joined: Aug 2010
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From: NV
You can have a higher engine operating temp and not have a change in the delta and have a plugged oil cooler. The best scenario is to know what readings you normally get from the ECT and EOT independently of one other to know what your normal readings are for various "activities".
I'm not trying to argue with you but... There are many postings here, frequently ignored, stating that the delta should only be checked with the engine coolant at "normal stable operating point". For that reason the temperatures cannot be viewed independently.
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Post Fiend
Joined: Oct 2005
Posts: 10,626
Likes: 7
From: Plano TX and Brentwood TN
I absolutely agree with what you say about knowing your engine and where readings "should" be. I was basing my comments on the engine coolant being at or near "normal" ie 190 degrees F.
I'm not trying to argue with you but... There are many postings here, frequently ignored, stating that the delta should only be checked with the engine coolant at "normal stable operating point". For that reason the temperatures cannot be viewed independently.
I'm not trying to argue with you but... There are many postings here, frequently ignored, stating that the delta should only be checked with the engine coolant at "normal stable operating point". For that reason the temperatures cannot be viewed independently.
The only time in my experience that would be different, but not in regard to this discussion, it is a side bar, is with TFT. That's how I knew my tranny was in need of an upgrade after suffering for a year with all my mod and it was before it was at a stable normal operating temp. What set off alarms was how quickly it warmed up, something you don't get with the stock cluster.
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Hotshot
Joined: Apr 2010
Posts: 19,060
Likes: 238
From: Saratoga Springs,UT
The Delta would be out of spec at a Minimum
A plugged oil cooler is Going to FORCE the Delta Further Apart Everytime Higher operating temp or Cooler operating temp Take your Pick Delta will be driven apart with Bad Oil Cooler
The way I see this is the Deltas still Matter even with a EGR deleate
Once you Bust the 15-20 Delta the Oil Cooler still Plugged (IMO you still want cooled Oil) EGR Cooler or not
Its Not as Criticle with the EGR Deleate Cuz the EGR Cooler is not there to Burst and Hydrolock and Blow HeadGaskets all that FUN Stuff And if your running that Square EGR Cooler better get right on the repair ASAP
I wopuldnt want Extremly Hot Oil going threw my oil cooler with that you are only stressing the Oil Cooler and it may Burst too
Just remember with a EGR Deleate you still Shouldnt ignor the Deltas ECT vs EOT But with the EGR Cooler out the Picture you may have only bought alittle time
Post Fiend
Joined: Oct 2005
Posts: 10,626
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From: Plano TX and Brentwood TN
A plugged oil cooler is Going to FORCE the Delta Further Apart Everytime Higher operating temp or Cooler operating temp Take your Pick Delta will be driven apart with Bad Oil Cooler
The way I see this is the Deltas still Matter even with a EGR deleate
I'm not saying it's not at all possible, it is, however, it's the flip side to the first part of this post. How probable is it, or is the risk aversion mentality kicking into overdrive?
Hotshot
Joined: Apr 2010
Posts: 19,060
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From: Saratoga Springs,UT
[quote=tex25025;11813271]I know, you would think. I know a guy that was had high readings on both and it, there was only a 9 degree split between the two. I don't know why it happened, but it did happen. So it's possible, how probable it's going to happen is another matter.
[quote]
When I saw your earlier post I was thinking you had heard someone that had that senereo play out
So My question is Did the Guy do anything to rule out a Bad ECT or EOT Sensor
Or Bad/Corrupted Gauge??
By design I dont know how a Plugged oil cooler could still Hold 9* Delta If this was True we wouldnt need an Oil Cooler
[quote=tex25025;11813271]
Out of all the people that I know that came in and out of Bean's (but it's been awhile since I've been there), I haven't heard of one that had a hydrolock engine and they are some characters, shall we say, there that love fast things to do something stupid in.
[quote]
So in all the time you have been here you havent seen a Burst EGR Cooler Hydrock the engine???
Iv seen it quite abit
it dont take very much Fluid Coolant/Fuel to hydrolock these since the Piston just about Kisses the Head at TDC
[quote]
When I saw your earlier post I was thinking you had heard someone that had that senereo play out
So My question is Did the Guy do anything to rule out a Bad ECT or EOT Sensor
Or Bad/Corrupted Gauge??
By design I dont know how a Plugged oil cooler could still Hold 9* Delta If this was True we wouldnt need an Oil Cooler
[quote=tex25025;11813271]
Out of all the people that I know that came in and out of Bean's (but it's been awhile since I've been there), I haven't heard of one that had a hydrolock engine and they are some characters, shall we say, there that love fast things to do something stupid in.
[quote]
So in all the time you have been here you havent seen a Burst EGR Cooler Hydrock the engine???
Iv seen it quite abit
it dont take very much Fluid Coolant/Fuel to hydrolock these since the Piston just about Kisses the Head at TDC
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