Egr blockoff vs. delete

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Feb 22, 2014 | 09:20 AM

stangr8cr

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Joined: Nov 2010

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From: Hermitage, TN

Egr blockoff vs. delete

What's everyone doing about this and emissions? I know most don't mess with it but I can't help myself. Was DPF on till Sep. last year when stuff "fell" off my truck. I didn't at first run block off plates to monitor egts till November and I was told unplugging the EGR valve wasn't necessary. Fast forward to emissions time and I reverse the "accidental falling off" process. After about 10 miles and no codes, CEL codes of P042E and P0490. Does unplugging do anything since the tuning disables the valve? So I have ordered a new EGR valve hoping that will take care of it. After I get through emissions and this stuff "falls" off again, wondering if 1, I just replace the bad egr valve and keep the good one on the shelf for once a year emissions purposes or 2, do the Egr delete which would be more involved. I think there would be a lot less chance of stripped bolts and breakage going the valve route but curious of y'all's opinions and what if any of you are doing if you're like me and can't leave well enough alone? Thanks fellas!!

Feb 22, 2014 | 09:36 AM

TRENT310

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From: Whitecourt AB, Canada

If you're going back and forth, probably just leave it in place and electronically disable it. The H&S documentation states that it does not cause undue harm to the engine to leave the EGR componentry attached.

Myself, I wanted to completely eliminate the risk of EGR cooler leakage (I had/have a 6.0L... 'nuff said) and also I noticed that the secondary cooling loop runs at a lower temperature, which probably means the charge-air-cooler runs colder which means it is more effective at cooling the intake air charge. It "unloads" the cooling system if you will.

Feb 22, 2014 | 10:05 AM

2ndStroke

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H&s does say leaving the egr plugged in will cause egr damage, you were running emission disabled and left the egr plugged in for how long??

Feb 22, 2014 | 10:09 AM

TRENT310

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From: Whitecourt AB, Canada

Yeah I would unplug it in any case, but I think we're trying to decide between "just unplugged" or "complete removal of EGR parts from vehicle".

Feb 22, 2014 | 10:11 AM

WildWildWest

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Joined: Aug 2007

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From: Saskatoon, SK, CA

Quote:

Originally Posted by 2ndStroke

H&s does say leaving the egr plugged in will cause egr damage, you were running emission disabled and left the egr plugged in for how long??

X 2

I removed my EGR completely but if you are putting it back together and taking it apart regularly I would NOT completely remove the EGR cooler. I would just unplug it. Too difficult to remove and reinstall this part regularly. Once you take it out - I guarantee you are not putting it back on again.

Feb 22, 2014 | 10:19 AM

Tofan

Fleet Mechanic

Joined: Aug 2013

Posts: 1,313

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From: Louisiana

Exactly as said. For you man just do the two block off plates and unplug it. That way it will be just as you want it. I thought the same thing that oh I will just take it off and put it back on when I take it to the dealer, but once it was out I said theres no way i'm putting that back on my truck.