Did all new motor craft glow plugs with new harness on both sides along with a new injector on hole 5. Drove the truck a total of about 50 miles and on cold start it struggles to fire, usually takes 15 seconds or so to fire and when it does there’s a huge white/black cloud then it clears up. Also smokes white while it’s turning over as well. Checked the codes and nothing which pretty much eliminates the GPCM from what I’ve read. Truck runs great once it fires up and runs for a few seconds. Hot start it fires up flawlessly. Batteries are only a year old and I keep them on a tender. FICM is 48v. Has fresh oil and fresh fuel filters. Any ideas, google isn’t coming up with much.