|06-07.5 LBZ & LLY 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 Ect|
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|12-04-2012, 04:44 PM||eBay Motors #31 (permalink)|
Join Date: May 2011
Location: Fort Collins CO
What mods are done to this truck? For some reason you have no sig?
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2011 Denali LML
Wehrli Emissions Compliant 475/stock kit, Wehrli Dual CP3 Kit, Merchant Auto Trans, Fass Pump
Tuned by Duramaxtuner
Sold 7/2015: Twinned 07 LBZ
|12-04-2012, 08:36 PM||eBay Motors #32 (permalink)|
Join Date: Sep 2009
Location: Boise, ID
Mods are 4094 built trans etc
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Blackout :06 GMC lbz 4x4 Built motor, HSP twins, DDP Injectors, Self built trans firstname.lastname@example.org
Over Built :07 Chevy lbz 4x4 Caged and built 10.42@134
The Car: 2014 Chevy Cruze 2.0 Diesel
Special thanks to: Mike L, Gtrippin, IdahoRob, Dmaxstore, HSP, ISSPRO, Yukon, Airdog
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Adrenaline Truck Performance IDAHO ROB 208.685.1000
|12-05-2012, 12:51 AM||eBay Motors #34 (permalink)|
Join Date: Jul 2007
Location: ObamaNation-Under the Dictator's rule
That video didn't sound like anything I'd get too worried about, you should hear a serious case of timing rattle.
It sounded more like it hadn't warmed up completely yet.....?
Anyway, at that RPM, your timing curve is usually set to advance pretty quickly past 1/4 throttle, as well as the FRP.
Above 2K, especially 2500+ is where most tuners get more aggressive on timing.
Mind you, without the timing, EGT would get hotter and you'd make less power...
If the issue is usually worst during warmup, Rob can adjust the coolant temp based timing compensation to lessen the advance.
Si Vis Pacem, Para bellum !!!!
07' Chevy Silverado HD
--CC, SB 4X4 Duramax Diesel/ 6 spd Allison Auto (PTO high idle mod)
--EFILive by KB3MMX Tuning W/ SDP Towing Twins (Billet S475 over Stock)
--SILVERLINE 4" Stainless Exhaust
--AMSOIL Synthetics and filtration bumper to bumper, including Bypass
--DDM tuning HID's in Low and High Beams, 6000K Lows/4250K Highs
--PPE rear Diff cover, PPE Deep Trans Pan, PPE High Flow Manifolds and Up Pipes
--Danville 3" Y Bridge and big air intake kit / EGR delete
--Airdog II DF200 w/ CAT UHE filter upgrade...etc,etc...
Last edited by KB3MMX; 12-05-2012 at 01:02 AM.
|12-05-2012, 07:45 AM||eBay Motors #35 (permalink)|
Join Date: Nov 2010
Iím sorry to read about your concerns with your truck, boosted4life. I realize many people have already posted in the attempts to help you with this, but I wanted to let you know I hope things will get worked out soon so you can enjoy your truck again.
Michelle, GM Customer Service
|12-05-2012, 08:18 AM||eBay Motors #36 (permalink)|
Join Date: Aug 2012
Location: New Hampsha'
Sounds like my truck w/ Edge Evo. I seem to notice it when its somewhat warmed up, I think.
Ive noticed it on lvl 4 and now on lvl 1. Was wondering if it was a normal noise, after all it sounds like a diesel, just doesnt do it all the time. Ive not had the truck for a warm season, or summer fuel yet so I have no comparison there.
04.5 4x4 ~149k miles
DE 4", 5100s, LBZ MP, S&B LBZ air, KoryWillis Go-go Juice, Insight CTS, ADII, 8' Fisher, Highroller Ultimate Idler Arm, Profab delete, XD RareParts tie rods
Dirtymax this, Dirtymax that...
|12-05-2012, 09:57 AM||eBay Motors #37 (permalink)|
Join Date: May 2010
|12-05-2012, 10:26 AM||eBay Motors #38 (permalink)|
Join Date: Dec 2010
It sounded like to me it went to 1 main injection shot vs. having pilot. Many tuners, including myself shut pilot injection off (which is there for noise emissions and makes the engine run much quiter by basically pre heating the chamber *to make things simple*) and when this happens you get a louder combustion event. Normally this is shut off around 2900ish rpms... Not sure as i cant hear it to well, but when the noise gets prominent thats what rpm roughly im hearing it from your video. I have some customers not like the noise (even though i recommend running it that way in the upper rpms) and i turn it back on for them. Not saying this is the case, but send Rob a log and i dont doubt he will be able to identify the issue (if there is a tuning issue) and he help you out!
P.S. The best test in the world to see if it is tuning, or if tuning is aggravating a mechanical issue is to simply put a stock tune in the truck and see if the problem still exist...
I custom tune all kinds of stuff and try to make them go faster, breath better, and play nice.
When in doubt, 0xFFF it out
A few rigs in the trough... Couple fords, duramaxes, and a little ecodiesel with a lot of heart!
Last edited by bluessmax; 12-05-2012 at 10:55 AM.