tcm

  1. B

    Lost communication/ no crank

    Hey guys I have a 2011 LMM CC dually that is throwing a U0101 for TCM and no indicator line under gear shift range. Truck will not crank. I assumed it was TCM as I have had to replace them on other trucks. However this one is testing out ok as I have continuity between pin 9 and 69 and have...
  2. S

    U0101 issues

    Have an 05 lly, had wires on the grey (c2) tcm plug with 4 wires rubbed through. Patched it up and still same issue. No tcm communication, no speedo, hard shift into d/r, stuck in 3rd, no gear indicator. Have power and ground to tcm, plugged another in and no difference. Unplugged all trans...
  3. S

    Lly no start after engine swap

    Got a shit show of a lly, story goes as follows. Had blown hg for years and motor finally let go, they swapped motors to a used one, couldn’t get it running come to find out motor was apart and never reassembled completely. Then a different guy took it down to short block and half way assembled...
    • Sethdavis09
    • Thread
    • ecm lly no start tcm
    • Replies: 1
    • Forum: LLY
  4. D

    Anybody carry a spare TCM with them?

    This may be the dumbest of dumb questions, but after having my first TCM go out on me I'm scared to death of having the current one go out on me out in the middle of nowhere. I figure it would be cheaper to carry a spare TCM than wait for it to go out on me in the middle of nowhere while hooked...
  5. Starfire47

    Limp Mode P0700 P0776

    Looking for input with an issue I have been chasing my tail on. Have a 2003 Chevy Lb7, has a generic canned tune (bully dog?) from the previous owner. 4" Exhaust, New injectors, K&N Intake, 35" tires, 230,000 miles Never had any issues with the truck, have put 70,000 miles on it since I've...
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