Hey everyone, I’m hoping someone could guide me in the right steps. I have a 2006 6.0 that started fine yesterday but this morning when I cranked over, she took a little longer than usual to startup. Yesterday, I did the blue spring update, and new fuel filters. After I installed those I forgot to purge the system, but the truck started up. I let her run for about 5 minutes, shut her off and here I am the next day. Like I said she took longer to startup and once I started backing out my driveway she was running rough like she was about to die. Pull her back in my driveway and now she won’t start at all. She sounds like she’s close to startup but not quite. FICM voltage was normal, no leaks, and checked my connections. Is it maybe a bad blue spring kit? Someone please help I’m stressing about this.