4.3 vortec, lp. Tier 3? Maybe. Serial 70058
The truck is constantly flooding itself out and won't start. If you pull the fuel line off the mixer and crank it over you can get it to start and run and it will continue to run until you shut it off. It will start maybe 2 or 3 more times after that and then on the fourth start it won't start. Only crank because it is flooded again. I have replaced the EPR, the mixer, the electronic fuel lock off, I just went through this truck as well and has all new tune up parts, distributor, crank sensor. Pretty much replaced everything on the truck. I do have the laptop hooked up to it and can send pictures of the readings if needed. Any help will be appreciated as I'm stumped. Thanks