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  1. R

    Piston rings not seating

    These are the specs for piston rings for my LMM as published in ALLDATADIY.COM Piston Ring End Gap-First Compression Ring - Service Limit 1.37 mm (0.0539 in) Piston Ring End Gap-First Compression Ring - Production Value 0.3-0.45 mm (0.0118-0.0177 in) Piston Ring End...
  2. R

    Engine maintenance

    Complete change of your brake fluid and power steering fluid. Diff fluid, trans fluid, coolant changeout.
  3. R

    Trailer Brakes Too Weak

    Places that sell trailers, like general utility trailers, have a variety of trailer electric brake magnets. See if they have magnets with more stopping power than your existing units but that will fit and function without any modification. Very easy replacement and great results. James is...
  4. R

    Allison line pressure

    Call an expert, Inglewood Transmission, (714) 870-7300
  5. R

    need a new x107 connector

    this one?
  6. R

    Engine Sounds

    Banks new engine project; Source: https://www.youtube.com/watch?v=lx_9fMrtoqQ
  7. R

    Module confusion and issues on my 2008 LMM

    Pretty good video. He keeps it simple and doesn't get into the more complex stuff . I had not previously seen the multi-connector he used to plug into the comb connection, which makes diagnosis much simpler. Our lmm's have 2 communication systems, a low speed, and a high speed. The low speed is...
  8. R

    Oil pressure drops to 0 and triggers alarm in 05 2500 Duramax

    One thing is for sure if the oil pressure was actually at 0, no oil pressure, your engine would be knocking within a few seconds
  9. R

    Module confusion and issues on my 2008 LMM

    I thought I posted this previously - link to complete electrical manual for our trucks. Lots of good info in addition to the actual wiring diagrams...
  10. R

    Module confusion and issues on my 2008 LMM

    Dean The ABS fault (if ABS light is on in the dash display) is most likely the cause of these 2 messages. Both systems need to know information from the ABS in order to operate correctly. If ABS problem goes away, very likely both of these messages go away without any other intervention. VCIM...
  11. R

    Module confusion and issues on my 2008 LMM

    Intermittent electrical problems are the most difficult things to deal with. And the further apart the occurrances are, that makes it even more so. The use of a scope is quite helpful, but then you have to have the problem happening right then or you will still have to wait. . DTC U0137 00...
  12. R

    Module confusion and issues on my 2008 LMM

    here is the electrical manual download for 2008 lmm...
  13. R

    Module confusion and issues on my 2008 LMM

    Dean Did you find the comb where the low speed com wires all attach at one point? That's the easiest point to remove each of the modules.. I don't know if I have something that gives that location, I will post again...
  14. R

    Module confusion and issues on my 2008 LMM

    More info
  15. R

    Truck Dies Seconds After Starting

    For me, this says wiring also, just as James and Jason posted. And it very well may be intermittent which makes it extremely difficult to find. A wire could be broken inside the insulation and appear whole to all appearances but the strands of the conductors touch and while they are touching...
  16. R

    2009 with code po708

    See attachment for info and testing
  17. R

    p2263 after the delete

    https://www.dtcdecode.com/Chevrolet/P2263
  18. R

    Anyone have a scope pattern for the cam sensor? Have code p0341, no start after new engine.

    Lots of reading for you here https://www.dtcdecode.com/Chevrolet/P0341
  19. R

    lly ficm repair suggestions

    See the attachment and this https://www.dtcdecode.com/Chevrolet/P2146
  20. R

    LBZ Engine Harness

    There is a Youtube video ( 2 parts I think) where the poster had a bare harness and he went over every connector to identify it. I THINK it was a LMM harness, but should be close enough to your LBZ.
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