I THINK IS A HOSE BECAUSE ALL MY RADIATOR WATER IS GONE

This is not a question.

It's venting compression into the cooling system. Anything from a bad head gasket to a cracked head or block. Start the engine cold and see if the pressure jumps up quick before the engine is even to running temperature. If so that's what it is.

check your coolant level. Check to make sure your cooling fan is running, Thermostat could be an issue also. Also check water pump. To check thermostat feel top radiator hose when vehicle heats up if it gets hot your thermostat is probably working if it does not then ur thermostat is probably stuck closed and needs to be changed. If your water pump is leaking out the weep hole (small hole at neck of water pump) then you will need to change the pump because it is going or has gone out.

Have you thought about the water pump? Coolant sensor?

Could be from your Freeze Block Plugs. Good luck

Replace small hose and clamp, that hose come's from your transmission, goes through another tank in the radiator, to keep the transmission fluid cool, hope this was very helpful.

fill it half way preferably with coolant

Take off the intercooler and you will see them by the injectors .

You need a good quality deep single hex socket ,say 3/8 drive to suit them (12mm ). and a bar for that socket to turn the old ones out and the new ones in .

Check your 40 amp glowplug fuse as well .

If this is a 2.2 4cylinder it is called a water pipe and the Isuzu part number is
8-92063-282-0