No Ideas

[dustydog]

Hello All I have a 97 250 with a 7.3 it has 195000 miles. When its cold I hear a wooshing sound and get no power after its first started. If I give it more fuel it works it self out.But it will keep happening. This happens as I am driving as well Almost feels as if I have a jake brake working. As soon as the eng. warms up all is fine. I have been told turbo(Lack of oil) Could they be right and what do I do to fix this? If not what else could it be?
Thanks

[greasltn]

It could be the exhaust backpressure valve sticking. It is designed to create backpressure to warm the engine, but it is supposed to release when you press the throttle or brake.