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  1. Robby05

    LB7 in limp mode. Lots of codes

    Got it figured out. Double checked voltage at C1 connector. Noticed orange wire didnt have the same voltage as the battery. Pulled harness down through wheel well to get a better look at it. Found an old test light poke hole in the orange wire that was growing that nice blue corrosion. Cut out...
  2. Robby05

    LB7 in limp mode. Lots of codes

    Checked resistance at wires 29 & 32 -- 61 ohms. Verified ground, battery voltage and ignition voltage at C1 connector.
  3. Robby05

    LB7 in limp mode. Lots of codes

    Update on truck. Replaced ignition switch and most of the codes have gone away. Still have the U2106 code present. Trans stuck in limp mode. Anymore ideas? What wires at TCM harness should I be looking at? Thanks for any input
  4. Robby05

    LB7 in limp mode. Lots of codes

    Thanks Mike. I'll give that a shot first. Forgot to mention, the PRNDL lights up but no indication of when gear its in
  5. Robby05

    LB7 in limp mode. Lots of codes

    LB7 shop plow truck has been at 2 different repair shops trying to figure out why its stuck in limp mode. Boss brought it back over from the last repair shop and wants us to figure it out. Back story. Truck has had a hard life. Sits all summer and get abused in the winter plowing. New plow...
  6. Robby05

    LMM: Turbo housing split

    Where at in Texas are you?
  7. Robby05

    Injector return line leak

    Any input before we start putting it back together?
  8. Robby05

    Injector return line leak

    Opened up a friend's LB7 today because of a suspected return line leak on the pass side. Once I removed the valve covers I pressurized the return side with 15 psi to verify the leak and sure enough, all were leaking. The one question I have is 2 of the injectors started leaking on the inlet...
    • Robby05
    • Thread
    • Replies: 1
    • Forum: LB7
  9. Robby05

    08 lmm with a po341 after rebuild. And no start.

    That block is fresh from a machine shop...??? I see a new oil pump and head gaskets, but it looks worse than my 200k LLY I just sold. Did that shop have any experience with a Duramax?
  10. Robby05

    Stuck in 4th gear clunks range shift inhibited

    Some more info would be nice. What year or truck, what housing are you talking about why was said housing replaced?
  11. Robby05

    Who else is going to UCC?

    Is there a link to see the results from today or anyone have some updates ?
  12. Robby05

    5th wheel tongue weight?

    You'll be fine. Is the hitch rated for the extra weight?
  13. Robby05

    LLY: HELP Limp mode after egr delete

    Friend of mine had issues like that. I think he ended up leaving the EGR on and the set the min/max tables so it wouldn't call for EGR function. I'll ask him tomorrow what he did to remedy the issue
  14. Robby05

    LLY: HELP Limp mode after egr delete

    How did you go about deleting it in the tune? What codes is it throwing?
  15. Robby05

    Street carburetor

    What's the spec's of the motor and trans?
  16. Robby05

    Rest in peace Mike (C20ELEPHANT)

    That's sad news. It's easy to forget there's a person behind the screen name and not just the internet talking with you. Never met the guy but had a few conversations with him. Rest easy
  17. Robby05

    Ls heads

    Anything else done to the truck or is it all stock?
  18. Robby05

    turbo question

    Spec's? How much?
  19. Robby05

    V2 Auto Cal question.

    Forgot to mention, started to B.S. about other stuff, but I'm down to grab lunch or dinner with you fellas. Just give me a day or two notice to make sure I don't have anything going on.
  20. Robby05

    V2 Auto Cal question.

    Oh boy. Liquid rubber off the back tires...
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