Hello friends, I have a Ford Ranger 2006 Power Stroke 3.0, en route with the throttle in depth does not exceed 110 km per hour, to pass a truck it costs a lot, this began to do about a week ago. In the city there is no lack of power, it is normal. I thank you if you can help me with this problem, thanks

Check the gas oil filter that is not dirty and partially clogged.

Hello friends, it seems that the problem was solved in a strange way, with the truck running but stopped, it gave accelerated up to about 3000 rpm and failed as if it lacked fuel or air and on the way it did not exceed 100 km / h. It occurred to me to take out the air filter, which I did not doubt because it is quite new, and without the filter I gave it some accelerated up to a little more than 3000 rmp, and surprise, it did not fail more, step followed I placed the filter again and tried another time and the truck didn't fail. Then I decided to go out and try it on the route and pleasantly check that it is going well and I get up to 160 with a good reaction and I sure gave more but I tried up to that speed only. If anyone has any idea that it could have been, it would be good if they would comment and if not, I hope someone will serve. I suspect that it could have been the air flow sensor that was dirty and when the filter was removed and accelerated it was cleaned. Thank you for your comments and a hug.