2002 Duramax bad injectors and injection pump says dealer?
I was driving my truck it is a 2002 3500 was going to fuel it up and ran really rough and made loud noises. I tried to get it running again and it would not. I changed the fuel filter and when I took off the old one it had lotsa of water and rusty water in it. I changed it got it running. It would only start when I primed it several times. It ran but was missing I drove it ten miles to dealer. Dealer scanned it and said number one injector is stuck open and the injection pump is bad. I asked them if they would just change the injector first before the pump and they said no they are sure its bad. Total cost 2500 dollars including labor. That was 2 weeks ago and for the last week and a half "it will be ready tommorow." I am wondering how can they check the injection pump if there is a injector stuck open? Any ideas or suggestions on what to do?