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  1. J

    Replacement TCM or ECM. How much programming is required?

    And this is true for either the TCM and ECM?
  2. J

    Replacement TCM or ECM. How much programming is required?

    My truck is a 2006. Was tuned ~2015 by prior owner using DSP-5. No records. No clue what tuning is on it. By all appearances, stock fuel, stock turbo. As far as I know the TCM is untouched. TCM: If I purchased a good TCM (to have a spare) from a similar/same 2006-2007 LBZ truck, is the TCM...
  3. J

    LBZ Fan Clutch

    Weird. Some listings show a 2850 for a LBZ. Others show it specific to the LMM and have the 2843 for an LBZ. So my quandry still remains. Reading the forums it's tough to discern if guys are judging engagement temperature by the dash gauge or by a digital readout. It's also tough to tell if...
  4. J

    LBZ Fan Clutch

    The factory equivalent Hayden for my truck (and I believe an 04) is the 2850. The kodiak for the same year is the 2886. Hayden lists them both as "Severe Duty" models.
  5. J

    LBZ Fan Clutch

    What is your take on replacement clutches? Hayden is fine or get spendy with OE? Kodiak (lower temp) or stick with factory fitment? If I really wanted to do the job twice I could put on a shroud then see how it responds as warmer weather approaches...then do the job again with a new clutch...
  6. J

    LBZ Fan Clutch

    Upper and lower shrouds are there. I was referring to the "wagon wheel" inner/rear shroud that is commonly removed the first time a mechanic has to pull the fan. I imagine mine was taken off when prior owner had water pump replaced. The pull-a-part yards near me only rarely have diesel/hd...
  7. J

    LBZ Fan Clutch

    If this is the case, do I... 1) $185 delivered on a new inner shroud. 2) $80 on the Hayden lower temp clutch, which moves the fan closer to the core (into the outer shroud) which may help the lack of inner shroud. 3) 1 and 2 4) Slow down a little on hills.
  8. J

    EFILive Lmm performance stock tune

    In eight years he's probably gotten that tune dialed.
  9. J

    Head gasket build

    I'd do every rubber line under the hood (coolant, fuel, and hydraulic) and use spring clamps (like the factory did) except the few places where a worm clamp is appropriate. Even if you don't want to go that far, please do that 3" long coolant hose that runs over/behind the fan pully bracket...
  10. J

    LBZ Fan Clutch

    Was your feel that the 2886 responded faster than the stock and/or prior clutch you had? Did you feel it was excessive? Al this assumes that my OE clutch with 300k miles on it is properly functional (seems to be similar to other internet accounts) and that yours was as well. It seems like an...
  11. J

    LBZ Fan Clutch

    Summer is coming, fifth wheel is checked over, lots of campground reservations made. When it's hot out, on extended grades I will see 220-225 (digital gauge) before fan clutch engagement. Aside from grade efforts, towing stays under 200. Cooling stack is clean. My truck has had the wagon...
  12. J

    Looking for Allison build/install options near Virginia.

    It's been a bit, but thanks to those that gave pointers. I'll update on how it all turns out, but for anyone else looking for solid trans options between NC and MD: 1) George is very much in business and has been a pleasure to talk to. He sounds like a great option, 250 miles away. Sounds...
  13. J

    Service Brake System message

    Yes. The cables running between the battery parallel them. Unhook one battery and try to start on the other. Then swap. Your truck should start on either battery unless it's cold or the batteries are weak. Bad ground to the passenger side is my bet. If you're only running on one battery...
  14. J

    head gasket issues after water pump replacement?

    If water pump is bad (impeller slip) and engine is overheating, I'd think that could lead to bad head gaskets. If head gaskets are bad and cooling system is overpressure, that would put extra wear on the water pump shaft seal.
  15. J

    Service Brake System message

    I can almost guarantee that the message is not related to needing pads, rotors, fluid, etc. ABS module is under the cab, under the drivers seat. Ground location is likely on the frame near drivers front cab mount. Places like AutoZone and Pep-Oreilly should have a scanner that can check for...
  16. J

    Service Brake System message

    I get that message if the ECM relay under the hood happens to be pulled when I turn the ignition on. That relay is triggered by the ECM during run or start and feeds additional power to some things that need to turn on. Truck won't run without it. Same message, but may or may not be related...
  17. J

    What will help my fog lights

    I guess that's the popular thought process. Other folks' lights seem blinding (have glare and complete lack of appropriate lighting pattern) so my lights must be inadequate. I want to be like them! I bet they can see great! Reality is their pupils are dilated due to the "squirrel light"...
  18. J

    What will help my fog lights

    The Nineo 9005 bulb will fit into our fog light housings but is not appropriate. Our fogs do not have a glare shield in front of the bulb. Even if the chip was the correct size, placement, and emission pattern, there's no pattern control given by our housings to forward light coming off the...
  19. J

    Can Heavy towing blow the engine?

    Our fifth wheel is probably only 9000 pounds loaded and I can see significant oil pressure drop on long grades at constant RPM. In absence of an oil temperature gauge, this indicates oil temps are going up. Be aware that much below 30 psi, piston cooling jets will leave the chat. On some of...
  20. J

    What will help my fog lights

    Most US drivers aren't very familiar with fog lights, their purpose, and what to expect from them. The older Silverado fog housings are actually have pretty good pattern control compared to most vehicles. They're pretty good at what they're made to do but not good at what most people think...
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