Hello MontanaLee. How fast was the engine turning over on your last test?
I really don't have any new advice for you. BUT, I would suggest that you write each recommendation given to you on a piece of paper (Particularly Mr. Lincolns). then write what you did to correct that problem. Then what was the result. Kind of like a checklist... this is to ensure that you didn't miss a step.
How cold is it when you are trying to start the truck? Is the truck outside or inside? do you have the capability to warm up the engine before you try to start it? (taking care to not burn down your garage!!!!)