Allright so i got up yesterday to drive out to the goose blind..like every morning i go i let the truck warm up for about five min then drove over to my buddies house to pick him up never go over 25mph. i pick him up and we stop to eat and then get into the interstate to head out. all of my dash gauges were normal...temp was right below 200 deg. like always...full tank of fuel...normal oil pressure...i made it about three miles on the interstate and then went to pass a truck while climbimg the famous hill out of laramie wy. and when the truck shifted the rpm's would go up like normal but nothing would happen speed wise...it would stay right at 70mph..so i let off and tried again and nothing would happen..the rpms would go up and it would almost have a hollow sound coming from the engine...i pulled off at the next exit and checked under the hood and that to make sure it wasnt somethin stupid that had happened and there was nothing i could see..so i drove it back into town and parked it...even on that run which has less than 30 miles i used like 5 gallons of fuel..this morning when i started her she was doing the same thing...i didnt even need to drive to the interstate to tell...it has terrible throttle response and no top end power...this engine thats in it is the remanufacured one that they replaced only 4,000 miles ago...it hasnt even been in the truck a month hers the other post i left with everything they did

https://www.dieseltruckresource.com/...ine+failure%21

I am going to take it into the dealer tomorrow morning but i figure i would see if anyone on here had any ideas!
thanks!

 

I would check all fluids, sounds like something it wrong with the injectors to me. Check the oil and see if it smells like fuel or is higher than full. Just my .02

 

yeah i checked the fluids again today..they were all normal yesterday and then after sitting over night they were still normal...and i cant really place the smell..im not sure...almost smells more like fuel to me...and it only has half a tank in it now