Why is coolant leaking from upper radiator hose from a metal tube?

You need to go to a auto parts store or your car dealer to order a replacement upper hose. How To Find Fix Coolant Leaks

The metal hose would not have coolant in it if it connects to the steering box. That would be a power steering hose with power steering fluid. If coolant is leaking, it must be from the radiator. New radiators are not all that expensive, keep your ride good with a new radiator, or have a radiator shop seal the leak, clean and pressure test the old radiator. If any rust is in the radiator just replace it, or you will soon have new leaks.

see this causes and fix it. God bless you
Water pump -- A bad shaft seal will allow coolant to dribble out of the vent hole just under the water pump pulley shaft. If the water pump is a two-piece unit with a backing plate, the gasket between the housing and back cover may be leaking. The gasket or o-ring that seals the pump to the engine front cover on cover-mounted water pumps can also leak coolant. Look for stains, discoloration or liquid coolant on the outside of the water pump or engine.
Radiator -- Radiators can develop leaks around upper or loser hose connections as a result of vibration. The seams where the core is mated to the end tanks is another place where leaks frequently develop, especially on aluminum radiators with plastic end tanks. On copper/brass radiators, leaks typically occur where the cooling tubes in the core are connected or soldered to the core headers. The core itself is also vulnerable to stone damage. Internal corrosion caused by old coolant that has never been changed can also eat through the metal in the radiator, causing it to leak.
Most cooling systems today are designed to operate at 8 to 14 psi. If the radiator can't hold pressure, your engine will overheat and lose coolant.
Hoses -- Cracks, pinholes or splits in a radiator hose or heater hose will leak coolant. A hose leak will usually send a stream of hot coolant spraying out of the hose. A corroded hose connection or a loose or damaged hose clamp may also allow coolant to leak from the end of a hose. Sometimes the leak may only occur once the hose gets hot and the pinhole or crack opens up.

Can you identify WHERE it is leaking from? Is it just a slight dribble and a bit of steam, of a major leak where it is running out?
If it is from the rubber hoses or near the clamps? Your vehicle is quite old and the upper/lower radiator hoses may have to be replaced. A fairly simple loosening of hose clamps with a screwdriver or with a pair of pliers and then just levering them off their housings.
But first get a large sheet of cardboard or plastic and a shallow pan to catch the coolant as you let it drain. Let the engine cool first... test if the internal pressure has gone down by squeezing on the upper radiator hose... if it is easy to squeeze then it is safe to drain and empty the radiator with the little winged tap that is just on the lower, inside of the radiator. Loosen the radiator cap to allow air to enter the system and let the coolant flow out. (Careful with pets... they seem to love drinking the coolant... but it is poison!)
You can now change the upper/lower rad hoses and heater hoses and maybe a short by-pass hose.
IF the leak is just a minor seepage from the radiator or inside the heat core (you likely can smell the vapours of the steam of the leaking coolant inside, the likely cure is to my some "radiator stop leak" from an auto supply store. Follow the directions on the bottle, but most have a syrupy liquid and little metal pellets. You open the radiator cap (when it is cool or depressurized) then add the small bottle of radiator repair solution. Put the rad cap back on and then you have to go for a reasonably long drive (usually 30 minutes or so) to heat up the pellets and have them "melt" as little flecks of soft metal in the solution. The idea is that as the coolant attempts to leak out... these little metal flecks block the leak.
IF you have the coolant totally dumping out and it is not a leaking hose, it may be the water pump and seal. I think I'd suggest that you get a mechanic to deal with that.... it is not an easy task for a DIYer !
I sincerely hope this helps. Please let me know...
/denis

Check this procedure to REMOVAL & INSTALLATION
(1.8L and 1.9L Engines)

CAUTION Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.

1. Disconnect the negative battery cable.
2. Place fender covers on the aprons.
3. Raise and safely support the vehicle. Drain the cooling system.
4. Remove the right and left-hand front splash shields.
5. Disconnect the lower radiator hose from the radiator.
6. If equipped with an automatic transaxle, disconnect the lower oil cooler line from the radiator. Remove the oil cooler line brackets from the bottom of the radiator.
7. Lower the vehicle.
8. If equipped with an automatic transaxle and air conditioning, remove the seal located between the radiator and the fan shroud.
9. If equipped with an automatic transaxle, remove the upper oil cooler line from the radiator.
10. If equipped with the 1.8L engine, remove the resonance duct from the radiator mounts.
11. Unplug the cooling fan motor electrical connector and the cooling fan thermoswitch electrical connector.
12. If necessary, remove the cooling fan thermoswitch for clearance.
13. Remove the three fan shroud attaching bolts and remove the shroud assembly by pulling it straight up.
14. On some 1.9L engines equipped with A/C, remove the upper radiator air deflector from the radiator and set it aside.
15. Remove the upper radiator hose and the two upper radiator mounts.
16. If equipped, remove the fluid cooler tube bracket bolts and coolant overflow hose from the radiator.
17. Remove the radiator from the engine compartment by lifting it straight up.

2.0L Engine
(1997 MODELS)

1. Remove the fan motor, blade and shroud assembly.
2. Raise the car and support it with safety stands.
3. Unfasten the left-hand splash shield bolts and remove the shield.

CAUTION Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.

1. Drain the cooling system into a suitable container.
2. Disconnect the lower radiator hose and if equipped with an automatic transaxle, the lower oil cooler outlet tube.
3. If equipped with an automatic transaxle, Unfasten the oil cooler tube bracket bolts.
4. Lower the car and disconnect the upper radiator hose.
5. Remove the radiator cap and disconnect the radiator overflow hose.
6. If equipped with an automatic transaxle, disconnect the upper oil cooler outlet tube.
7. Unfasten the four radiator bracket bolts and remove the radiator from the engine compartment.

To install:

1. Install the radiator and tighten the bracket bolts.
2. If equipped with an automatic transaxle, connect the upper oil cooler outlet tube.
3. Install the radiator cap and connect the radiator overflow hose.
4. Connect the upper radiator hose, then raise the car and support it with safety stands.
5. If equipped with an automatic transaxle, tighten the oil cooler tube bracket bolts.
6. Connect the lower radiator hose and if equipped with an automatic transaxle, the lower oil cooler outlet tube.
7. Fill the cooling system with the specified amount and mixture of coolant.
8. Install the splash shield and tighten the bolts.
9. Lower the car and install the shroud, blade and fan motor assembly.
10. Start the car and check for coolant leaks.

Hope helps (remember to rate this asnwer).

There apparently is a coolant leak, could be the radiator, upper or lower radiator hoses, water pump, heater hoses or thermostat housing gasket.

Hello joshmalik81: My name is Roger and I will help you. First drain down the coolant in the radiator. Next follow the upper radiator hose back to the top of the engine. You will find it connects to a metal tube held down by four bolts. Remove the four bolts and lift up the tube. You will find the thermostat under this metal tube.
Should you need further help please just ask. Please rate the answer. This way I know it was helpful. Thank You for using Fix Ya. Roger

Hi:
The radiator on your Focus is mostly plastic on the top and bottom, and the middle section is aluminum/ alloy. If you examine the radiator, and are sure it isn't leaking from the hose connection, then the radiator will need repaired. sometimes, small leaks in the middle , metal section are sealed just by using some radiator stop leak in your engine's coolant. A radiator shop can replace the top or bottom plastic piece on your radiator too, and often it is a good idea to check the price of an entire radiator at your local auto parts store, as sometimes you can buy a radiator for less than the cost to repair your old one.

this lower tube is coolant inlet tube to water pump..dealer part as far as i know..they will know what one it is if you describe it..fairly common part..not too bad to replace

Stevie---You must have some REALLY BAD Auto Parts Stores in your Area. From your Discription there should be no Guess Work!