07.5+ LMM Duramax PowertrainDiscussion 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
Ok guys... I might be a bit too paranoid. But when my Torque Converter locks in (I have digital guages that tells me when it is locked) it seems to lock in kinda hard.. not real smooth..I really notice it when I am in Tow Haul Mode. Feels kinda like a shift kit when it switches gears??? Is this normal, or am I just paranoid..
Thanks
__________________ Aaron Blackwell
Cen-Tex Marine
2007.5 D-MAX, EDGE DIGITAL GAUGES, QUADZILLA WITH DPF DELETE, TUNED AT 90HP NO MORE NO LESS, STRAIGHT PIPED, 17" CHROME SHAKER RIMS WITH 285 70 17 BFG KM2 MUD TERRAIN TIRES, AIR BOX MODIFIED, AND MORE TO COME (I HOPE)
Sounds like it is a solid lock-up which should help it live longer. A soft shift will allow it to slip a little before lock-up and reduce the life-IMHO!
I have the 6 speed too.It doesin fact feel like a ''shift'' between 2nd and 3rd,but you feeling the t/c lock up....notice when you stoppimg in th mode,when it gets under 2nd gear,it unlocks t/c and you can def feel it.It needs to do this,Allisons are beefy and they need to live to propel a 3 1/2 ton truck!!!
__________________ 2006 GMC 2500hd4x4SLE cc/sb...LBZ
HIFLO exhaust & ''HP enhancers''.
2002 GMC ex cab15002wd
1987 Monte Carlo SS
1978 Malibu/RUNS
2002 YukonXL321k,tuned! The left lane is built to pass,move or we'll run over yurassss!!Try me..
2005 Kodiak...don't ask! Kevin
''FORSHO''[Tm]
Mine has done it since new, and everything I can find about it says its OK. I like it; feels like a truck rather than a Dynaflow (for us older guys). I did read that it is more pronounced until the transmission goes though its learning curve. It did seem to dminsh a bit over time, but its still definitely there.
Ben
__________________ 2007 2500 HD Classic LBZ/Allison, stone stock, rollup windows, manual door locks, towing and plowing packages with Western plow, and not one flake of snow last winter.
Thanks for the mind ease guys... I know now that it has been doing this "normal TC lockup" since I got the truck..... I had always thought it just switching gears until I saw the TC Lock on my digital gauges and felt the hard TC Lock at the same time...Just made me question it....
Thanks again guys... I am hooking up to my Fifth wheel on Wensday and going to the Lake for Thanksgiving... The whole family is going... Tryin something new..... So now I am mentally stable on knowing the Duramax is SOLID..thanks
__________________ Aaron Blackwell
Cen-Tex Marine
2007.5 D-MAX, EDGE DIGITAL GAUGES, QUADZILLA WITH DPF DELETE, TUNED AT 90HP NO MORE NO LESS, STRAIGHT PIPED, 17" CHROME SHAKER RIMS WITH 285 70 17 BFG KM2 MUD TERRAIN TIRES, AIR BOX MODIFIED, AND MORE TO COME (I HOPE)
__________________ 2005 LT 3500HD CCLB SRW LLY
PPE Powered, Brand new allison thanks to ppe level 4
Lbz intake and mouthpiece
Torsion lift keys
MBRP 4" turbo back
Autometer boost and egt
Firestone ride-rite
Res Mod
Mcculloch 5300k HIDS
Hauls a 13k toyhauler to the dunes
Technician Parkland Chevrolet
AutoForums.com is the premier network of enthusiast-owned
enthusiast-operated automotive communities.
We operate more than 100 automotive forums where our users consult peers for shopping information and advice, and share
experiences and opinions as a community.
Linear Mode
