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  1. M

    LB7: leaky injector line

    i have a 01 lb7 duramax and it came into the shop cause the number 5 injector was leaking. removed it found corrosion in the seat. so i got a new one installed it it leaked too. took it off cleaned off the injector side of the seat (injectors are 4 months old) and re installed leaks less now but...
  2. M

    LB7: crank no start

    i have a 2004 duramax here at my shop, its a cab medium duty truck c4 i believe. it turns over fine but wont start, customer said he pulled out of his driveway down the road and it just shut off. had fuel in the oil, and three codes po621 generator l terminal circuit,po622 generator f terminal...
  3. M

    no brake pedal

    ya just looking at it looks like a royal pain in the side :mad:
  4. M

    no brake pedal

    that is exactly what i was thinking. is there any way to test the hydro boost?
  5. M

    no brake pedal

    have a 2002 gmc 3500 duramax with the hydro boost here, and what a night mare its been. fixed all the brake lines replaced the master cylinder.it had no pedal when it came in and it still has none. any thoughts on this problem?
  6. M

    LB7: fuel in oil

    found a bad return line gasket figures and of course its the drivers side what a pain in the behind.:mad:
  7. M

    LB7: fuel in oil

    opened the valve covers found all four of the banjo bolts to be loose, but i know for a fact that i torqued them to 37 ft lbs, even checked twice.
  8. M

    LB7: fuel in oil

    i have come to the conclusion it is probably a return line. so i drained the oil and refilled and took off both breather hoses off the valve covers and figured i could at leats see which one was puking oil into the vent tube that was coming out the bottom. now it runs great no smoke no issues...
  9. M

    LB7: fuel in oil

    would that contribute to the smoke? i have never worked on these smaller diesels so i don't know. i changed all the seals on the return lines and torqued accordingly.
  10. M

    LB7: fuel in oil

    Hey guys i have a 2002 gmc 3500 hd. one of my driver sprayed a whole can of starting fluid into it to trying to get it to start (when it was really just out of fuel) :eek:and kill all 8 injectors. so i purchased 8 reman injectors from a highly recommended place in my area and i installed. the...
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