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  1. 2004LB7

    Logged boost vs mechanical boost.

    Good to hear you got it figured out. Stupid stuff like that is often times hard to diagnose as no one expects that to be off
  2. 2004LB7

    Diesel leak

    You can run the engine with a handful of items removed. Like the intake, coolant crossover tube, etc. but keep the fuel and electrical connections and only run it for a short time as needed to see the leak. I think you might be able to put the crossover tune and coolant lines back on and still...
  3. 2004LB7

    LLY crank no start

    Well, just a piece of information for you, if the engine looses a cam sensor while the engine is running, it will continue to run and drive. But will not restart if you shut it off. If it looses a crank sensor, it will die right there. Also, if the cam and crank are out of sink, it may not start...
  4. 2004LB7

    LLY crank no start

    65mm3 doesn't sound off for cranking Water can do awful things to injectors. Might be worth pulling glow plugs and seeing if you are getting any fuel spray. Possible you got a bunch of rusted pintles and nozzles. If that is the case, new injectors are in order But multiple misfire and speed...
  5. 2004LB7

    Diesel leak

    Going to be hard for anyone here to see the leak and pinpoint it for you. You can try cleaning everything up and seeing where it starts getting wet first. My guess would be a leaking rubber line. But that would probably only happen if you have a lift pump. If not then start looking around the...
  6. 2004LB7

    Alternator issue?

    I did read about some models having that current sensor on the negative terminal. This particular one doesn't have it. Would have been an easy solution if it did. Right now it's just holding. Or at least it seems to be starting ok in the morning. This weekend when it sits for a day, I'll...
  7. 2004LB7

    Alternator issue?

    It foes have a fuse block on the positive terminal. Alternator voltage reads the same on either side. About 0.2V higher right st the alternator due to voltage drop on the wires. Might upgrade them to a heavier gauge to gain a small boost
  8. 2004LB7

    July '26 Chat -- Food, Family, Fireworks and Fun!

    That could be difficult. Almost 8am there isn't it?
  9. 2004LB7

    July '26 Chat -- Food, Family, Fireworks and Fun!

    I think I'm going to be hosting the BBQ this year for the family. Too many restrictions for fireworks and the cost has gotten out of control. Of the family doesn't bring anything I'll probably head up a hill with the GF to watch them over the city. There is a location where we can watch several...
  10. 2004LB7

    Need info on a P0380 code

    Merged your two threads since you're asking the same question about the same issue
  11. 2004LB7

    1/8 mile discussion and time slips post here!

    added as #43
  12. 2004LB7

    300k on transmission fluid

    With the Allison, you don't leave it alone.
  13. 2004LB7

    2008 GMC 2500 that intermittantly goes full hot on the passenger side

    Used to get something like that in my LB7. A quick pull of the HVAC fuse and it was back to normal. Would happen once a year or so. As long as the fuse truck worked, I didn't care. I think the process was to pull the fuse for 30 seconds. Then turn on the ignition but don't turn on the AC or...
  14. 2004LB7

    No crank no start

    I had a similar situation with my 08. Not sure if the computer froze or what. But a quick disconnect of the batteries and she fired right up I've heard that the fuse block circuit board can warp and cause weird issues that randomly come and go. Posablely an area to inspect or replace if the...
  15. 2004LB7

    Hello guys

    Welcome. Post up a thread with what you need help on and we will do our best to point you in the right direction
  16. 2004LB7

    Alternator issue?

    Looks like a ford, and possibly other, thing. Really only on newer vehicles that prioritize MPG. Apparently it's a strategy they are using now to have the ECM/PCM have more control over the alternator output so it can reduce the load on the engine and reduce stress on older batteries. It sounds...
  17. 2004LB7

    Forum Server Move

    🤣 It's 97 now so I'm making progress 😁
  18. 2004LB7

    Alternator issue?

    Welp, not as great as I thought. There was no battery menu or any way to change the profile. But I did do a reset which I've read is supposed to be done when replacing the battery. Voltage now seems to be more steady around 14.2 volts. A little low for my liking but definitely better. I do...
  19. 2004LB7

    Alternator issue?

    Ok. I think I figured something out from the forums. The Mazda 3 typically has a flooded lead acid battery. This doesn't require as high of a voltage to drive current and charge the battery. But those who charge them put for AGM like she has needs to reprogram the BCM to accommodate the change...
  20. 2004LB7

    Alternator issue?

    GF's 2013 Mazda 3. This could possibly go in the spark plug section but it's really more about electrical and the charging system. On the above car, GF said she had the battery replaced maybe 1.5 years ago. Over the last few months she's been experiencing a low battery no start. With engine...
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