05 ford powerstroke f-350 from start up for the first 5 miles or so, my truck has allmost no power; it acts like something is not opening up; it also is hard to start in cold weather; any ideas ?

Diesels are cold running beasts. Several ideas presented in the link below should help:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-selected-other-vehicles-46563-8.html#post1415281