Search results

Search the forum Search Articles
  1. F

    Need help with lb7 electric codes.

    I would unplug this and see if the problem persists. Also check your batteries and alternator if you think you're having intermittent power issues.
  2. F

    Need help with lb7 electric codes.

    There is a ground on the driver back of head to firewall.
  3. F

    03 crank but will not start

    Absolutely right brain fart earlier. Wasn't thinking that it might not be getting ANY fuel. First just assumed that it was. For reference generally speaking all this motor need's is fuel and compression. People have been able to start them with either when they will not fire on their own...
  4. F

    03 crank but will not start

    You have a fuel problem. Check all fuses and relays. Something is not initiating your fuel or injector's. Start with electrical and work towards mechanical if not found. Lot's of info on google. Just search 03 duramax crank but no start, no run
  5. F

    LB7: 02 LB7 Injectors Failing after 30k?

    Get your balance rates pulled. Not a definite but usually pretty well at finding at least the bad bank. Replace at least the whole bank. These engines are not friendly for one injector replacement.
  6. F

    LB7: Smoke and Moisture Questions: 2003 Chevy 2500HD

    Try this one first. He is telling you the test. The other way is to have someone command max rail pressure with a scan tool while idle and look for leaks.
  7. F

    LB7: Smoke and Moisture Questions: 2003 Chevy 2500HD

    Just so we're on the same page Cylinder #8 will be the one closest to the steering wheel. In case you are actually referring to #7 which is rear passenger side. Just want to make sure that there is no confusion on that. My first priority would be to find that fuel leak at any cost. there should...
  8. F

    New LB7 life

    I do have one question that I'm not sure was answered in all the bounds of material I've sifted through before taking this on. Will a vac/pressure test at the machinist tell me for sure that mine are good? My injectors weren't stuck considerably and from what I could see none of my cups moved...
  9. F

    New LB7 life

    Thanks they are at the machinists as we speak. The hardest part is the wait to put everything back together. Salvage: We don't get to hold on to diesels long as that stuff goes quick in South Dakota. We do get a lot of trucks and parts for a lot of gassers however most body stuff interchanges...
  10. F

    New LB7 life

    Hey All Matt from South Dakota with a new to me LB7. Hal way through a head gasket replacement and injectors. I will be reading more than posting but if anything is needed dont hesitate to ask. I work at an Auto Salvage for a living however have done just about everything else you can...
Top Bottom