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[phatbackhybrid]

Originally Posted by pat4nobjct

I have an 04 f350 6.0l with 150k on it. as it is getting colder outside my truck starts fine everytime but in the mornings after sitting it will have a rough idle for 15-20 seconds then be fine. if the truck sits for a few days it will run rough for a couple minutes then straighten up and run fine. i live in cincinnati and it is around 30-40 at night. but even back in the summer if the truck sat for a week it would do this. any thoughts? thanks , Pat

Your problem is simple. Your injectors are having issues. When I bought my 04 I really didn't know much about it. Long story short. My truck had a rough Idle when cold and on every start. Worse when colder. Finally my truck got WAY!!!!! worse. It finally went from only sounding like a big rig on starts and smoothed out. To the steering wheel feeling like it was going to vibrate off the coloum. lol. I had to finally get every injector replaced. This will cost about 6 to 7 grand. Ford won't tell you this but the injector's in the 04 to 05's have very pooly designed injector's and they have had to be redesigned by International. I have all newly designed, remodified injectors in mine and my Truck runs freaking AWESOME!!! Here is the secret....... Go get the 200,000 mile warrenty from Ford and wait 3 month's or so and then tell them you having trouble out of them after you've have the warrenty for a while. warrenty cost 1500. That's it. It pay's it self off. Trust me. Even if your turbo when out it would still pay it's self off.