Water pump crossover housing gasket

Water pump is Timing belt driven. It is below the Camshaft sprocket, in the timing case. If you want to repair/replace it here are the instructions.
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COMPONENTS

REMOVAL

1. Using the drain plug, drain the coolant.
2. Remove the drive belt and the engine coolant pump pulley.
3. Remove the timing belt cover, the auto tensioner and idler pulley.
4. Remove the water outlet fitting, the thermostat case and the water pump fitting.
5. Remove the engine coolant pump mounting bolts.

1. Remove the engine coolant pump assembly from the cylinder block.

INSPECTION

1. Check the engine coolant Water pump for cracks, damage or wear, and replace the pump assembly if necessary.
2. Check the bearing for damage, abnormal noise and sluggish rotation and replace the pump assembly if necessary.
3. Check the seal it for leaks and replace the pump assembly if necessary.

INSTALLATION
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1. Clean the gasket surfaces of the engine coolant pump body and the cylinder block.

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1. Install the new engine coolant pump gasket and pump assembly. Tighten the bolts to the specified torque. Tightening torque

Engine coolant pump bolt:
Head mark "7": 17 - 22 Nm(170 - 220 kg.cm, 12 - 16 ft. lbs.)

1. Install the water pump fitting, the thermostat case and the water outlet fitting.
2. Install the auto tensioner and timing belt. Adjust the timing belt tension, then install the timing belt cover.
3. Install the drive belt, coolant pump pulley and then adjust the auto tensioner.
4. Refill the coolant.
5. Run the engine and check for leaks.

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Its real common for the water pumps to go on those especially with a 2.7 liter

Possible leak areas waterpump, heater core, intake manifold gasket, radiator or hoses. Waterpumps have what they call "weep holes" which is an early warning system to prevent major damage when pump fails. The weep hole needs to be inspected from below and is usual behind waterpump pulley. If it's your heater core, you should smell anti freeze inside truck and in most cases windshield will fog up. Radiator could be pin hole to front side of radiator (which is buried behind AC condenser & grill) and if it was head gasket, intake manifold symptoms would be coolant in oil OR lots of white smoke from exhaust. Try parking it on a clean dry surface and see if you can narrow down area where leak is coming from.

Sounds to me like the shaft seal has failed on your water pump and you need to replace the pump, theres usually a tiny hole either at the bottom of the water pump or at the top of the pump its called the weep hole, when coolant comes out of this hole it means the internal shaft seals of the pump have failed and it requires replacement of the pump, now if the coolant is coming out of where the pump bolts onto the engine block you propbably only need the waterpump to block gasket to fix the leak, check and see exactly where the coolant is coming out from so you can be sure exactly what you need to replace....

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

CHECK AROUND WATER PUMP AREA.AND THERMOSTAT HOUSING FOR LEAKS.THE MECHANIC WHO PUT THE WATER PUMP ON MAY FORGOT TO PUT SEALANT ON BOTH SIDES OF THE WATER PUMP GASKET CAUSING LEAKS.LOOK AROUND THERMOSTAT HOUSING FOR LEAKING.IF THERMOSTAT SEAL WAS DAMAGE DURING INSTALLATION IT WILL CAUSE LEAKING.IF ALL LOOKS GOOD CHECK FOR COOLANT LEAKS AROUND RADIATOR .CHECK RADIATOR TOP AND BOTTOM HOSES FOR LEAKS AND CHECK HEATER PIPES AND HEATER CORES HOSES FOR LEAKS.IF ALL HOSES GOOD.CHECK FOR LEAKING CORE PLUGS.

Do you have a leak at the water pump cover? The water pump? Or the 4 gaskets that seal the water crossover (that the water pump is in) to the cylinder heads?

is the car smoking or is white smoke coming out of the exhasut pipe, could be a small leak in the head gaskets

THE WATERPUMP GASKET TO THE BLOCK

4.9 disconnect negative battery cable,drain the coolant from radiatorremove coolant reservoir, loosen waterpump pulley bolts,a screwdriver can help keep the pulley from turning,remove drive belt,remove idle pulley,remove waterpump mounting bolts(they are different sizes,some are star shaped) do not pry on waterpump until all bolts are removed,clean gasket surface,use gagket sealant and install new water pump(start all bolts before you torque any down.)