lb7 injectors hard start

  1. J

    Lb7 crank no start after motor swap

    I have a 2001 lb7 duramax I just did a motor swap in I got a crank no start it had the original motor but I swapped too a lb7 Cali emission motor unfortunately but now it don’t seem to want too start the motor prior had 100 overs apparently and a tune could that be blocking it from wanting too...
  2. GCncsuHD

    LB7: 03 LB7 Won't start when hot, Not Injectors?

    I have a 03 LB7, 128,000 mi, and put into service 10/02, so it is currently still under the injector warranty. Ever since this past summer it has been progressively harder to start after I drive the truck, then cut it off, and try to start it back up between 10min to 3 hours later. It...