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  1. R

    Piston Tech Improvement

    Here is an interesting development in piston tech that has several improvements that if proven true could make a difference for engine builders. Source: https://www.youtube.com/watch?v=cXlAZX0H0JI
  2. R

    08 lmm shift inhibited

    Lookup your codes here https://www.dtcdecode.com/Chevrolet
  3. R

    LB7 / Allison 1000 Slipping (Delay) on Forward Take-Off

    You have checked your fluid level? And when was it changed with new filters? Check the obvious first.
  4. R

    Intermittent dash electronic issues

    OBD port and the cig lighter are on the same circuit. If one has power, the other one should also.
  5. R

    LLY overheating when idle

    Clean the cooling stack AND replace your fan clutch.
  6. R

    LML GPCM delete?

    Makes sense. Thanks. Sure, just loop around the GPCM. I would think that there may be a code. you'll know soon enough.
  7. R

    LML GPCM delete?

    Why take the GPCM out of the com loop? I don't understand this.
  8. R

    P01F0

    Where does that code come from? How do you translate into a standard P% code?
  9. R

    Catastrophic turbo failure - 72mm Danville performance- Now what?

    I hope none of the remnants went into the intercooler, or even further
  10. R

    Brake issue

    It sounds like the truck brakes just got very hot. Perhaps he brakes were not burnished in? Maybe step up to Dot4 fluid when you bleed the ABS module.
  11. R

    Got Sludge?

    I only posted this because I found it FUNNY, all that 'sludge' pouring out of an engine. Of course it isn't oil, or at least not entirely oil. Maybe some of the chemical you can add to an oil drain pan to solidify or gel the old oil after a change. I don't know really what it is. And it's way...
  12. R

    LML service bulletin

    This is a source of TSBs - https://www.tsbsearch.com/ It's not up to date, but still contains lots of info
  13. R

    Got Sludge?

    Source: https://www.youtube.com/shorts/ZAbXvwjhTIo?feature=share
  14. R

    Replacement TCM or ECM. How much programming is required?

    If I was considering this spare parts purchase, I might do the purchase now but wait until they're needed before doing any programming to mate them to the truck.
  15. R

    Normal FPR duty cycle?

    Not really. Here is a link to the entire publication that copied...
  16. R

    Normal FPR duty cycle?

    Keep in mind that the attachment came from an LMM and I don't know what a similar document for your truck would show. 26K lbs is a lot of pressure. It certainly wouldn't hurt to change the sensor. I think I would hold off until you get your problem sorted out before changing the pressure sensor...
  17. R

    Normal FPR duty cycle?

    This may not exactly answer your question, but it may help understanding the problem if there is one. The fuel pressure is electronically controlled by the Fuel Rail Pressure Regulator (FRPR). The FRPR is a duty-cycle solenoid mounted in the pump and controlled by the Electronic Control...
  18. R

    Normal FPR duty cycle?

    That's definitely not normal. You should be at full rail pressure with the FPR unplugged.
  19. R

    2018 L5P Engine Miss

    Change the injector connector. Just like Jlawlels2 said.. L5Ps are noted for this problem.
  20. R

    Looking for help in right direction.

    This is a very good general guide for identifying and solving problems. https://oregonfuelinjection.com/services-repair/diesel-diagnostics-repair/chevy-gmc-diesel-diagnostics/
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