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  1. RPierson51

    LB7: truck down over a year still need help Please

    So its been over a year now and i still cant get this thing going ugh where to start... so last april #1 injector shorted to ground shutting off injectors 1,4,6&7 swapped it out and ran fine for a week then #7 injector shorted, shut off the 4 same injectors. tested the ficm harness seemed good...
  2. RPierson51

    shooting fuel out exhaust....

    Bmc1025 i agree it seems like one injector is hung open but i made sure nothing moved or fell out while i was installing the solenoids, and was very careful with the posts although i felt like i might have overtightened one maybe it broke internally but doesnt appear broke, is there a certain...
  3. RPierson51

    shooting fuel out exhaust....

    So i had a problem a while back truck shut down 4 cyl 1,4,6&7 after inj 1 shorted i replaced the passenger side injectors 1,3,5&7 since i was in there, after getting it back together it ran fine for a week and then inj. #6 shorted, and instead of replacing the whole injector i was told by...
  4. RPierson51

    LB7: Lb7 fuel leak

    Did you replace the HP pipes when you did the injectors? If not the old ones need to be really cleaned well if there being reused, if any debris got in there at all they will leak, gotta be torqued to 30 ft.lbs also
  5. RPierson51

    LB7: #1 injector shorted

    this thread is not dead, my truck still is. i didnt know the solenoid itself can be replaced without replacing the whole injector i woulda just done that when i replaced #1 inj. oh well, i tested all mine again and they all test good how could the solenoids be bad then? how long/miles has it...
  6. RPierson51

    LB7: #1 injector shorted

    The injectors are dealer installed 4 years ago, besides the one I installed last week that was a reman, I un plugged the injector harnesses and ohmed each injector out seperately and they all ohm out like. 4-.6 ohms so Im hoping it isn't another injector although its running the same codes
  7. RPierson51

    LB7: #1 injector shorted

    yeah so a week and a half ago i put it all back together with the new injector and it ran great.. until this morning, half way to work and all of a sudden same thing: loss of power sounded like a tractor, and 1,4,6,&7 are out again, i guess the original injector shorting wasnt just the injector...
  8. RPierson51

    LB7: #1 injector shorted

    Soo... does this sound like I found my problem? If so its about ready to go back together
  9. RPierson51

    LB7: #1 injector shorted

    checked them, the new one already installed as well as# 3,5,7 read about .9-1.8 ohms, the "bad one" I extracted reads like.4 ohms, but I think I found something today, I noticed a ground strap that goes from the firewall to the hood was broken, I repaired it temporarily with a piece of wire...
  10. RPierson51

    LB7: #1 injector shorted

    I've owned this truck for over 4 years without opening a valve cover it was time I have a look and see if its as scary as ive read... turns out I can deal with it, wasn't that scary lol, since its been out of commission two months already and barley any progress I decided to just go for it, the...
  11. RPierson51

    LB7: #1 injector shorted

    Yeah I did notice that also with the spliced wires, I did check the ohms of the injector coil but forgot what it read like .4 I think and the other 3 on the bank read higher, I also did a continuity test to ground on the 4 passenger injectors, inj #1 pinged (grounded) the other 3 did not. So if...
  12. RPierson51

    LB7: #1 injector shorted

    Well I did find that the #1 injector did in fact short to ground, the injector harness tested ok, I'm just still unsure about the ficm harness, I tried to check continuity of the wires that plug into the injector harness to the plugs that plug into the ficm and it seems like each wire at the...
  13. RPierson51

    LB7: #1 injector shorted

    I feel like an idiot, in a quick conversation over the phone my friend told me testing these wires is nothing more than checking continuity, so now I guess that's what I'll do today, thank you all again for your input ill let ya kno what I find
  14. RPierson51

    LB7: #1 injector shorted

    Although i rarley trust the dealer I figured what they said makes sense like the injector harness went bad causing the injector to short. The only reason I took it there was because I don't know of any private shops in my area who could diagnose my problem, I also brought it because I really...
  15. RPierson51

    LB7: #1 injector shorted

    After work toady a plan to open it up and take a look, I was going to wait till I got the injector harnesses so I could open the valve cover, change the injector and harnesses and put it back together in one day as the truck doesn't fit in my garage and didn't want to leave it outside apart, but...
  16. RPierson51

    LB7: #1 injector shorted

    Thanks a lot ill keep that in mind, what I'm really trying to figure out is if I even really need them, or if I should just swap out the injector and hope it doesn't short again
  17. RPierson51

    LB7: #1 injector shorted

    Hello all, I've spent a lot of time looking up other threads to find my answer and haven't so here we go.. I'm getting ficm codes p0201,p0204, p0206,p0207, p1261, at first I thought it was the ficm itself, but after getting about 5 different opinions(ficm, ecm, 4 bad injectors, chafed wires in...
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