Allison 6sp: Duramax diesel 2.8 @ 2012

Nazri

New member
Nov 20, 2012
2
0
0
NEEDS HELP:
Truck model: Duramax Diesel 2.8L LTZ Turbo intercooler, 6th Semi Auto Trans
Year make : 2012
origin : GM ..Assamble at Thailand as Chevrolet colorado or Holden colorado at Aussie
power : 132KW, 346lb-ft
Reference to Engine Spec; http://media.gm.com/media/us/en/che...t/Pages/news/us/en/2011/Oct/1005_diesels.html
milage now: 31,000KM
PROBLEMS:
1. i:confused:dealing or under accelerate is fine: After pressing the throttle gear shifted as usual from 1 to 2 to 3 to 4 to 5, but if you press the throttle from the beginning at 3500rpm it will be fine accelerate until shifted to gear 6 the truck starting to rough, jerking, and blowing a lot of black smoke followed by white smoke.. After releasing the pedal , or getting slow, it starting to jerk, and almost shut, for a while..then it will run fine again..no fault code appeared
2. last time when using engine oil 5W30/when the engine is hot message appeared " Low oil pressure-stop engine"..the engine will shut automatically blanked the EGR and changed engine oil to 15W30 and the massage wont appear anymore but prob No.1 still persist

Action Taken:
I brought the truck to GM Service centre but they told me with the sick answer..we will look forward of you truck's problem without taking concern seriously .. Please Advise :
 

DMAXchris

It’s only temporary!
Apr 28, 2009
2,273
2
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44
Natrona Heights PA
Wrong Duramax. This forum is for the 6.6L V8 Turbodiesel that comes in the '01-'13 2500 & 3500HD.
3500 rpm is damn near redline on these motors. lol.
 

THEFERMANATOR

LEGALLY INSANE
Feb 16, 2009
3,890
44
48
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ZEPHYRHILLS, FL
Many of us here drool over the DMAX available abroad that us here in the states cannot buy courtesy of our EPA and diesels bad image here. Wish I could be of soem help, but there isn't one of them on this continent on the road probably.