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  1. K

    LB7: No crank/no start/ no wts light

    Grounds are at back of driver side cylinder head. Than on driver side block front of engine. Also on pass side of block towards front. Then I believe at both front end frame mounts. As well as by driver door frame mount
  2. K

    LB7: No crank/no start/ no wts light

    I can only think to see if any of your buddies has a scan tool that can see data. What if any power accessories work? Power windows? Power door locks? Dome lamps? Can a scan tool communicate with ECM, TCM, etc? Possible ignition switch?.....
  3. K

    yep...another new guy with egr problems

    I'm not quite sure here. P0540 is for the intake air heater. And P0405 is for the EGR position sensor. I would not think a P0405 would not be able to set if truck was tuned without EGR but am not positive there. But how EGR is monitor is with position sensor and mass airflow sensor. When EGR is...
  4. K

    LBZ extreme whistle issue

    Almost sounds like the variable geometry turbo's vanes are sticking. Any lack of power or black smoke while driving? Black smoke would let you know of a possible boost leak. Any codes?
  5. K

    HELP lml coolant leak

    If it's passenger side look at the surge tank. Known issues with them leaking. And if it is that you'll need a new cap as well. Just cause droplet formed at low point around oil pan doesn't mean that's where it originated from. Look all over for source and origin.
  6. K

    6L50 Transmission

    Mike, I actually thought 6L80 and 90 cases were same size?.....Just different torque holding capacity due to internals?.....And if I had any direct input on the 6L50 behind the 2.8 I'd like to see some different TCM tuning. The 6L50 was originally behind the 3.6 V6 and I've still done repairs to...
  7. K

    What did you do at work today?

    Replaced #1 piston and reassembled engine in 2016 Malibu with 1.5L turbo LFV engine.
  8. K

    06 Duramax shift inhibited

    Lol Mike. I wanted to chime on that as well but decided against it since it was tail housing guy
  9. K

    02 lb7 speedometer bouncing

    Yeah P0721 is the one to go after here I believe. The other C0237 and others can set due to speed sensor code. The c0265 is for ebcm relay and usually relates to the ebcm module itself or ground at driver side frame rail by body mount. Circuits 821 and 822 are the ones that send VSS signal to...
  10. K

    LB7: Injectors or Something Else?

    Ok so 1261 and 1262 set due to your 201 and 202 codes. P0700 is ECM indicating there is a trouble code stored in the TCM as well. You can try looking at the inline harness connectors by the upper radiator hose on driver side. Make sure no bent terminals, spread or pushed back. Check injector...
  11. K

    Brake upgrades

    gmduramax, why never a drilled rotor? Have you seen be more prone to cracking? Only asking cause I purchased the severe duty kit from powerstop. And those rotors are drilled and slotted.
  12. K

    LBZ: Lot of play in steering

    Check inner and outer tie rod ends. As well as pitman and idler arm. Also, if it seems like it's getting progressively worse make sure to check the pitman shaft adjuster lock nut on top of the steering box. I've seen a few back off and then the preload is lost.
  13. K

    03 duramax lb7 smoming at idle. Looking for answers

    If your high pressure lines are clean of any build up and debris I'd say you're safe to use them again. I don't know much about ultrasonic cleaning procedures. And I agree with previous suggestion of the sac type nozzles. And with a new set of injectors going in I'd invest in a lift pump as well.
  14. K

    LB7: Injectors or Something Else?

    Those balance rates are extremely high and very odd that all are like that. I'd definitely be looking at a lot more than just thinking injectors only. Looking at actual vs desired rail pressure is a good start. Also a fuel sample may tell something since it happened all of a sudden. Does truck...
  15. K

    Allison Rear adapter need help quick!!!

    Pull that trans out. Believe me I've watched people do in-vehicle trans repairs before and the time they spend fighting to get everything lined up and use a whole tub of transgel and then cross their fingers.......Its probably the same amount of time to get it out and do it the proper, only way
  16. K

    Brake upgrades

    So, when you guys upgrade to the '11 LML hydroboost do you use the your same master cylinder that came with your truck? Or is that changed as well? Cause by GM part number my master cylinder only goes on 01-02 vehicles.
  17. K

    Chevrolet cruze diesel

    They have a few different coverages for emissions. There's a 3/50, 7/70, and 8/80 coverages. And of course powertrain 5/100. But most emission parts that commonly fail on these cars are protected with special coverages that usually are 10 year 120k miles.
  18. K

    Odd transmission dash issue

    Honestly I think you need to have someone with a tech 2 look at the data. Only way to be sure all ranges are matching correctly. A nsbu switch can be slightly misadjusted but also a misadjusted trans shift cable can cause a misreading. That's why I think need to have a scan tool hooked up to be...
  19. K

    Sale! Sale!! Sale!!!

    Happy New Year. Big fan of your products. Even though I can only buy tshirts cause California said so
  20. K

    Brake upgrades

    gmduramax, seems like you do a lot of work with brakes. Any preference or recommendation for ss braided lines?
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