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  1. J

    LBZ: dropping rail pressure with no code

    Ok guys here's the weird thing. tonight I pulled a 9,000lb toy hauler and it didn't lose rail pressure once. I know that its not a lot of weight but I would think that with the extra load it would drop??
  2. J

    LBZ: dropping rail pressure with no code

    I will.
  3. J

    LBZ: dropping rail pressure with no code

    thank you! That's what I was thinking. I ordered a race valve this afternoon but I just wanted to see if anyone else had any ideas.
  4. J

    LBZ: dropping rail pressure with no code

    Hi everyone! the last couple weeks my truck has been acting funny. It seems to hang between 3-4 and the 4-5 shifts. If I watch the rail pressure on my cts it sometimes drops as low as 4.5k lbs, but it never throws a code. I rebuilt the filer head last week and now it seems to build pressure...
    • Jon7891
    • Thread
    • Replies: 5
    • Forum: LBZ
  5. J

    LBZ: Loping idle

    As the truck is loping the fuel pressure is bouncing from 5.2k to 7.1k. According to the cts the desired rail pressure is 6.2k
  6. J

    LBZ: Loping idle

    They aren't too bad. I don't see any leaks or anything. When it did finally fire it blew a bunch of white/ grey smoke
  7. J

    LBZ: Loping idle

    Ok so today I went to start it and it wouldn't start. It had lost its prime. After priming it a couple of times I got it to stay running long enough to move it in the driveway.
  8. J

    LBZ: Loping idle

    I have some sea foam in the tank right now.ill keep running it and try some 2 stroke next. Thanks for the tip!
  9. J

    LBZ: Loping idle

    3 days ago. I filled the filter with sea foam when I changed it. It didn't seam to make a difference.
  10. J

    LBZ: Loping idle

    Hi everyone, for the last week or so when my truck is cold it lopes for a bit until the coolant temp gets up to about 100 degrees. At idle the rail pressure bounced around from 4.1 to 4.6. I've noticed that at WOT it won't hold full rail pressure either. I changed the fuel filter and had my...
  11. J

    LBZ: Coolant smell

    I was thinking that too I'm just hoping not lol
  12. J

    LBZ: Coolant smell

    Thanks! I never thought about that
  13. J

    LBZ: Coolant smell

    The coolant in the reservoir doesn't seem to be going down at all so it must be a really small or intermittent drip. I will definitely check those clamps!
  14. J

    LBZ: Coolant smell

    Thanks bmc! I will check it out in the morning :thumb:
  15. J

    LBZ: Coolant smell

    Hey everybody, What is the best way to find a coolant leak I may or may not have? My truck randomly smells like coolant in front and under the hood, but my coolant level has not changed. I've been noticing the smell off and on for months but every time I smell it, it goes away just as fast...
    • Jon7891
    • Thread
    • Replies: 9
    • Forum: LBZ
  16. J

    LBZ: injector questions

    Does anyone know what the calculated fuel rate should be at idle? Mine is bouncing from 10mm3 to 22mm3 and back again
  17. J

    LBZ: injector questions

    Thanks guys. I am going to change all 8 as soon as possible, but i want to at least make sure that i dont do more damage in the meantime. I will try switching them around to see if the balance rate follows.
  18. J

    LBZ: injector questions

    Thanks for the reply. It's an lbz.
  19. J

    LBZ: injector questions

    Any help guys? I really can't afford to do all 8 injector's for amother couple months
  20. J

    LBZ: injector questions

    Im sure that this question has been answered a million times but I cant find it. my truck has about 105k on it. over the last few months ive had a balance rate on cylinder 8 that was in spec one day out of spec the next. ran the GM upper cylinder cleaner and all balance rates were back to +/-1...
    • Jon7891
    • Thread
    • Replies: 10
    • Forum: LBZ
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