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| | | 07.5+ LMM 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 |  | |
05-13-2008, 06:45 AM
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eBay Motors
#11 (permalink)
| | Senior Member
Join Date: Mar 2008 Location: Dubois, PA
Posts: 189
| My stock trucks dose this as well! i started a thread about it but I don't think anyone understood what I was talking about. So you can't fix it? It’s just how the tranny is? Goes like hell all the way through first then blah!?
__________________ (My Truck) Black 2008 Chevy Crew Cab Short Bed
4x4 Z71 LTZ LMM
Speedliner, WeatherTech FloorLiners, B&W Turnover Ball
(Work Truck/Tow Rig) Black 2005 Chevy Crew Cab Long Bed Dually
2WD LT LLY
Transfer Flow 100gal in bed tank, B&W Turnover Ball, Edge/Attitude Level 2 all the time, 4inch Turbo Back Exhaust with Cat Delete |
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05-13-2008, 07:41 AM
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eBay Motors
#12 (permalink)
| | DuramaxForum Veteran
Join Date: Apr 2008 Location: Lincoln, NE
Posts: 673
| Quote:
Originally Posted by gmpacnw Don't have the controls on the steering wheel but do know that if you select the tramsmission's 2nd gear in Manual mode you'll be in traction control. I did this in the Pacific NorthWest coastal sand & could see that the rear wheels would alternate for traction when they were spinning. Selected 1st gear & only 1 rear wheel would spin. | I think some of this may be specifically due to the G80 rear end. Its a pretty sophisticated piece of equipment. If it senses over a 100rpm difference between the rear tires, it will lock both axle shafts together. From my understanding, there's clutches that engage, so it may feel like some of the power is lost? Correct me if im way off... This might be what your talking about.
check these videos out, they explain the G80...
poor fords and dodges... stuck in the ditch |
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05-13-2008, 10:57 AM
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eBay Motors
#13 (permalink)
| | Junior Member
Join Date: Apr 2008 Location: hammett i.d.
Posts: 22
| on mine bolth rear tires spin in first unless im turning starp on pavement then it spins the inside tire in first bolth in second on wet pavement. it should have more than enuf power to spin in second with bolth rear tires cuz my old 94 ford idi can with 190hp and the same tires. How does it lock up all 4 tires when i puneh it in 4wd?
__________________ 2007 gmc 2500hd k&n cold air intake, 5'' turbo back exhaust no mufflers, ppe boost controler and edge juce with attitude. |
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05-13-2008, 03:37 PM
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eBay Motors
#14 (permalink)
| | Junior Member
Join Date: Feb 2008 Location: Davenport Iowa
Posts: 9
| I am also having this problem if i take off normal wait for the shift to second stand onit the truck will start to spin then falls on it face does not do it all the time is it posible the trany and computer can not camunnicate fast enough. Also just put a edge juice with attitude made the problem more noticable also dumps more smoke when shuts down. truck did the same stock. Only on level 3 no faut code and aparent trany slip
any help ford buddy giving me hard time
__________________ 2007 GMC 2500HD SLT crew cab short bed, Air aid cold air intake, cooper discover S/T 285/75/16, 5" magnaflow SS turbo back exhaust  |
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05-13-2008, 06:40 PM
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eBay Motors
#15 (permalink)
| | Junior Member
Join Date: Apr 2008
Posts: 15
| Read your manual.
If you put the Allison in "M2" it has traction control built in. You can't turn that feature off.
So don't put the indicator into "M2". |
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05-14-2008, 05:14 AM
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eBay Motors
#16 (permalink)
| | Senior Member
Join Date: Mar 2008 Location: Dubois, PA
Posts: 189
| Quote:
Originally Posted by BlackSilver Read your manual.
If you put the Allison in "M2" it has traction control built in. You can't turn that feature off.
So don't put the indicator into "M2". | im a big fan of reading the manual. i read that part but my truck dose it in drive! I think that manual mode is stupid unless you’re pulling something you’re not supposed to be pulling.
__________________ (My Truck) Black 2008 Chevy Crew Cab Short Bed
4x4 Z71 LTZ LMM
Speedliner, WeatherTech FloorLiners, B&W Turnover Ball
(Work Truck/Tow Rig) Black 2005 Chevy Crew Cab Long Bed Dually
2WD LT LLY
Transfer Flow 100gal in bed tank, B&W Turnover Ball, Edge/Attitude Level 2 all the time, 4inch Turbo Back Exhaust with Cat Delete |
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05-14-2008, 11:34 AM
|
eBay Motors
#17 (permalink)
| | Junior Member
Join Date: Apr 2008 Location: Abbotsford BC
Posts: 20
| I know the felling. Just finished my first tank of fuel(14.5mpg). I had to show the friends what 660lb/ft felt like. Under WOT it felt like the clutch was slipping then the RPMs would drop and then it would catch. I thought it was the tires breaking loose but the truck stayed straight.
I am glad to hear that this is "normal".
Side note...this truck is fricken awsome!!  I am taking the boat to the lake this weekend. Can't wait to see what the D-max/Allison will do through the hills.
__________________ 08 GMC 3500 SLT Crew Cab SRW Black on Black
Toy...18 foot Maxum
Previous..2000 GMC 2500 6.0L EXT Cab SB |
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