The turbo on the engine of an F-250 takes the exhaust gases from the engine and uses them to spin a turbine, which then creates a dense charge of air that gets recirculated into the intake system. This gives the engine a horsepower increase, and helps with torque as well. If the bearings in the turbo go out, then the turbo seizes up and stops working correctly. To fix the issue, or any other issue you may be having with your turbo, you will need to remove the turbo from the engine for repair.
Pop the hood. Unbolt the air cleaner assembly from the top of the engine with the 3/8-inch ratchet and socket and set it to the side. Unbolt the engine vent and radiator vent hoses from the engine with the 3/8-inch ratchet and socket.
Unbolt the coolant reservoir from the engine bay with the 3/8-inch ratchet and socket, then lift it up and move it to the side. Undo the top clamp on the turbo with the ratchet, but keep it on the turbo for the moment. Unbolt the intake tube from the turbo with the ratchet.
Unbolt the charge air cooler inlet pipe from the turbo with the ratchet, then take out the push pins with the needle-nose pliers. Unplug the wiring harnesses from the turbo with your hands.
Unbolt the oil supply tube from the top of the turbo with the 3/8-inch ratchet and socket and lift it off to the side, then discard the gasket on the oil supply tube.
Unbolt the marmon clamp on the outlet and inlet of the turbo, then remove the clamp on the turbo that you loosened in step 2. Take the turbo out of the engine bay of the F-250.
