7.3 idi turbocharged problems
 

I’m not sure if I’m in the correct forum as it’s my first time ever but I recently got this school bus of a beautiful truck from my papa. (First diesel)
https://cimg8.ibsrv.net/gimg/www.die...9f144eaf3d.jpg

Last week I drove it to a gas station down the road a mile or so and it ran like it always has. After I put half a tank of diesel in her, she wouldnt start without me pumping the pedal. She ended up sitting until now because of events going on, but now when I start her up she won’t even make it up the hill to get out of where I live. Foot to the floor in first gear and she dropped rpms, almost killing it before I even got 10ft up. I drained the water separator while changing the fuel filter only for nothing to change. If anyone can offer help it’d be a life saver.