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Duramax Third Generation: 2006-2007.5 (LBZ & LLY) Discuss the third generation (2006-2007.5 LBZ & LLY) of the 6.6L Duramax diesel engine & associated components. 2006 LLY engine discussion also belongs in this forum due to the similarities of the 2006 LBZ and the 2006 LLY. Engine related discussion ONLY. is the premier Duramax Diesel Forum on the internet. Registered Users do not see the above ads.
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Old 01-24-2010, 11:50 PM   #1 (permalink)
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EGR Clogged

Don't laugh, I honestly don't know, but ....If you don't block the EGR, what get's plugged up? I've never done this and at 78,000 miles the truck is running great. If you let it clog up, does that then block the EGR?

2007 Classic Silverado Duramax/Allison; DSP2 with TCM Tweaked by Nick & Bob @ DURAMAXTUNER.Com, Michelin 265/75R16, MBRP 4" ExhaustCat Delete with Hushpower Muffler, Roll N Lock Cover; 2012 Cruiser Fifthwheel; Reese Fifthwheel Hitch;Firestone Ride-Rite Air Bags: 45 Gal custom Aux Fuel Tank.
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Old 01-25-2010, 02:29 AM   #2 (permalink)
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Doesnt treallty get blocked, but you have a 1/4" tick beat of fuel and soot in your itnake al the way to your valves.
If you havent blocked it yet, I wouldnt worry about it.

Kinda like adding a shift kit to a 100k transmission.

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Old 01-26-2010, 09:57 PM   #3 (permalink)
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At some point, IMHO, it will cause an issue. EGR valve wont work or some other problem and start giving ya codes. Ya might wanna think about taking your intake out and cleaning it...? Once clean, then block it and stick a "fingerstick" in it to stop the codes. That's what I would do...warranty or not..chances are good that a dealer's mechanics will never even notice the plate or the Fstick.

No doubt there is a DIY here on how to remove your intake...if not, then you could make one for us.

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Last edited by steakman; 01-26-2010 at 10:00 PM.
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Old 01-27-2010, 02:55 PM   #4 (permalink)
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its not hard to pull it all apart, 30min job
06 CHEVY LBZ ZF-6 Puller " Dirty Rumor"
04.5 CHEVY LLZ Allison Tow Rig/DD "Dirty Angel" 1/4 in 12.7s
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