LLY: over revving

JoshH

Daggum farm truck
Staff member
Vendor/Sponsor
Feb 14, 2007
13,713
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Texas!!!
ok.. i need some help. i have managed to open up my tcm tune and wander around in there but dont know whats set right or wrong.

can some one send me a tcm tune preferable LLY 5 speed so i can compare the figures within.
thanks
oh and if it matters my OS is 15184109 :thumb:
Here's a stock TCM tune with your OS.
 

Attachments

  • 2003 Chevrolet Silverado Truck Automatic LB7 6.6 Litre (15184109).tun
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VinceGU05

duramax lover downunder
May 20, 2011
164
0
0
Melbourne, Australia
so far seen the rpm shift points were set at 3600rpm and the torque specs had completely fallen off by then.

so hopefully thats the issue.:woott: will check a few other tables and upload it and road test it.
:D:D:D:D

so it seems the guy that did the engine conversion, had played with TCM tunes; without giving me the factory untouched original. nor telling me he had played with it. nice huh?!?! only chasing this problem for like 14 months.
 
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JoshH

Daggum farm truck
Staff member
Vendor/Sponsor
Feb 14, 2007
13,713
775
113
Texas!!!
i can download the tcm tune but i cant seem to upload. says i am unlicensed.

If you've never flashed the TCM, you'll have to license it. You should have 2 TCM licenses unless you've already used them both on something else.