Clutch pressure plate fork broken or cable broken if so equipped.
To pump a clutch: push the clutch all the way to the floor, let it come back up fully, repeat several times
broken clutch cable could also be a shot slave cylinder...this will cause the clutch pedal to not come back up.
The linkage or cable is broke
Sounds like you have broken the 'clutch return spring' in the transmission or if it's hydraulic you may be out of clutch fluid (leaking)
You've blown a clutch hose by the sound of it, or you've got a leak in the clutch master or slave cylinder. Either way, without clutch fluid, the clutch pedal wont come off the floor and the clutch will be disengaged. Any half decent mechanic should be able to figure out what the issue is without charging and arm and a leg.
You may need to adjust your clutch or replace your clutch.
slave cylinder
the brake pedel pushes a switch right on top of the pedel lever it can come loose or go bad. check fuses first
you will need a clean piece off hose to fit over bleeder screw on slave cylinder.stick other end of hose in a clean jar of brake fluid.fill resivoir.open bleeder screw and have some pump clutch pedel as you keep filling resivoir.do this untill no more bubbles come out hose in jar.if this does not work may have bad clutch master cylinder or slave cylinder.most likely slave cylinder is bad very rarely does master cylinder go bad.to ckeck slave cylinder just pull back rubber boot if you see fluid come out it is bad.
in lakes rivers sea and all they will evaprate and go and change into water vapour and come down as rain from the clouds and how you pedel in the cycle it will be going on like how you pedel in the cycle this is called water cycle
Have to assume some things not mentioned. Did you use your old clutch and pressure plate? Put everything back as it goes. Have you watched the slave cylindar to see if there is travel? Could the fork have come off the pivot point?
You need two people. lift the truck and find the slave cylinder. It should be on the drivers side of the bell housing. Pump the clutch up a few times and hold it to the floor. While holding to the floor have your partner crack the bleeder. Air or fluid should come out. Tighten the bleeder and pump the clutch up again, hold to the floor and crack the bleeder again. You may have to do this several times. If it does not bleed your problem may be else where.