New to Duramaxs - Chevy and GMC Duramax Diesel Forum

2011+ LML Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

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post #1 of 44 (permalink) Old 11-21-2012, 07:56 AM Thread Starter
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New to Duramaxs

Just traded in my 2011 Ram for a 2011 Denali HD

Truck has the following mods:

H&S MiniMaxx
5" Exhaust
9" Cognito
37" Toyos
CAI
AMP Steps

EGR and DEF are unplugged but not removed any issues with this?

Turbo back exhaust so no DPF.

What things should I know about? Motor? Drivetrain? Recalls? Etc?

Ill post pics later.

Does anyone have a service schedule? Truck only has 19k miles on it.

Any information is appreciated last 5 diesels were Rams with the Cummins so I'm brand new to GMC

Thanks
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post #2 of 44 (permalink) Old 11-21-2012, 08:48 AM
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Quote:
Originally Posted by LMLDenali11 View Post
Just traded in my 2011 Ram for a 2011 Denali HD

Truck has the following mods:

H&S MiniMaxx
5" Exhaust
9" Cognito
37" Toyos
CAI
AMP Steps

EGR and DEF are unplugged but not removed any issues with this?

Turbo back exhaust so no DPF.

What things should I know about? Motor? Drivetrain? Recalls? Etc?

Ill post pics later.

Does anyone have a service schedule? Truck only has 19k miles on it.

Any information is appreciated last 5 diesels were Rams with the Cummins so I'm brand new to GMC

Thanks
Congrats sounds like a wicked truck. You will love it my dad has the Denali aswell. You are fine with the egr turned off and the def tank. But I would just take it out because it looks ugly. Post some pics!


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07.5 LMM ccsb ltz MATTE BLACK
8 inch fabtech lift,36x15.50 baja mtz's,20x12 fuel nutz,reflexxion hood,rbp grille,s&b cai,recon smoked headlights,dsp5 by Kory Willis,mbrp 5 inch TB,mbrp dp,7" black chrome stack,PPE boost and pyro gauges,edge insight cts,bd blow off,egr delete,pcv re-route, alpine touch screen, 2 10" type r's SOLD

new truck- 2011 Denali lml, 6 inch fabtech lift, 22x12 american force rebel's, 35" terra grapplers, h&s mini max, banks cai, 5" exhaust, rigid 20", recon tails and 3rd brake light
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post #3 of 44 (permalink) Old 11-21-2012, 08:54 AM
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Might wanna check the rear diff., prob needs changed to get the nasties out if it hasn't been done, same goes for the fuel filter & trans spin-on. save money for lift pump if you run it hard with the minimaxx. change the trans spin-on every 10k or when changing oil (at least every other oil change)....and welcome! hope you like your truck

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post #4 of 44 (permalink) Old 11-21-2012, 09:02 AM
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Congrats and enjoy. Lots of good info on here, lots of B.S too. The current LML Duramax is very reliable, and is the best diesel to choose from currently. When you are number 1 there will always be trolls and jelous posters trying to say otherwise, read between the lines and you will be fine.

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post #5 of 44 (permalink) Old 11-21-2012, 10:18 AM
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Congrats on the truck and welcome to the forum

2006 GMC Sierra 2500 HD SLT ECLB, LBZ, LED tailights, black turn signals , black aftermarket headlights,265/75/16s uniroyal larados,Bilstein shocks,Banks 4inch exhaust, Nicktane adp, with a 3 micron Donaldson fuel filter, Schaffer's oil, pcv Re-route from alligator performance, Nicktane race plug, GM cab light,Banks 3 inch boost tube,And S&B air intake good to be driving a diesel again.

2002 2500 HD CHEVY Silverado ECLB LB7
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post #6 of 44 (permalink) Old 11-21-2012, 01:00 PM Thread Starter
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Thanks everyone. I will get some pics on Friday

I thought the 10k filter on the Allison was no longer needed is it just a good idea?
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post #7 of 44 (permalink) Old 11-21-2012, 02:36 PM
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Quote:
Originally Posted by LMLDenali11 View Post
Thanks everyone. I will get some pics on Friday

I thought the 10k filter on the Allison was no longer needed is it just a good idea?
cheap insurance. From what I've read, more guys recommend doing it around 10k than not

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post #8 of 44 (permalink) Old 11-21-2012, 03:04 PM Thread Starter
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Noticed a lot of the posters here have the mini max and deletes like mine

Any regrets? I pick the truck up friday
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post #9 of 44 (permalink) Old 11-21-2012, 03:17 PM Thread Starter
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On second thought dealer just snapped this pic and sent it to me is that a DPF or aftermarket muffler ?
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post #10 of 44 (permalink) Old 11-21-2012, 03:18 PM Thread Starter
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Try this one
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