How many screws does the water pump have to take off to replace it

Most water pumps have a weep hole that leaks when the pump seal is broken. Usually indicates the water pump needs replaced.

you talking about water pump bypass heater pipe the metal elbow piece to the water pump hosing.the metal elbow piece is held in place by small bolt or bolts you should have either gasket or o ring betwween where metal elbow mounts to water pump housing.replace the hoses also.some times the hose will be leaking not gasket or o ring at the metal elbow.make sure screw or screws not loose or missing to the metal elbow pipe.

WATER PUMP - 3.3/3.8L ENGINE
REMOVAL
Drain Cooling System. Refer to procedure in this section.
Remove accessory drive belt. Refer to procedure in this section.
Remove right front lower fender shield.
Remove water pump pulley bolts and remove pulley.
Remove water pump mounting screws Water Pump - 3.3/3.8L Engine Remove water pump.
Remove and discard O-ring seal.
Clean O-ring groove and O-ring surfaces on pump and chain case cover. Take care not to scratch or gouge sealing surface.
INSTALLATION
Install new O-ring into groove Water Pump Body
Install water pump to chain case cover. Tighten screws to 12 N·m (105 in. lbs.)
Rotate pump by hand to check for freedom of movement.
Position pulley on pump. Install screws and tighten to 30 N·m (250 in. lbs.)
Install accessory drive belt. Refer to procedure in this section.
Install right front lower fender shield.
Refill Cooling System. Refer to procedure in this section.

Water Pump - REMOVAL & INSTALLATION
CAUTION When draining the coolant, keep in mind that cats and dogs are attracted by ethylene glycol antifreeze, and are quite likely to drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old.
3.4L ENGINE
(see Figures 1 and 2)

1. Disconnect the negative battery cable.
2. Drain the cooling system into a suitable container.
3. Remove the air intake duct.
4. Remove the top coil of the ignition coil pack.
5. Loosen the tensioner pulley bolt/screw.
6. Disconnect the heater hose from the water pump.
7. Loosen the water pump pulley bolts/screws.
8. Unfasten the power steering bracket bolts/screws.
9. Remove the serpentine drive belt.
10. Remove the water pump pulley.
11. Remove the power steering pump bracket and swing the bracket and pump aside. Do NOT disconnect the power steering lines from the pump.
12. Unfasten the water pump and engine front cover bolts/screws, then remove the water pump assembly from the vehicle.
13. Remove and discard the gasket and thoroughly clean the gasket mating surfaces.

Fig. 1: Exploded view of the water pump mounting - 3.4L engine

To install:

1. Position a new water pump gasket, then install the pump. Secure using all of the water pump retaining bolts/screws, except the bottom three, and tighten to 33 ft. lbs. (45 Nm).
2. Install the engine front cover bolts/screws and tighten to 16 ft. lbs. (21 Nm) for 1993-94 vehicles, or to 97 inch lbs. (11 Nm) for 1995 vehicles.

Fig. 2: Water pump retaining bolt tightening sequence

1. Install the three bottom water pump retaining screws and tighten to 89 inch lbs. (10 Nm).
2. Place the power steering pump into position and install the pump bracket.
3. Install the water pump pulley.
4. Install the serpentine drive belt.
5. Install the power steering pump bracket retaining bolts and tighten to 30 ft. lbs. (40 Nm).
6. Connect the heater hose to the water pump.
7. Install the top coil to the ignition coil pack.
8. Attach the electrical connector to the alternator.
9. Install the air inlet duct and air cleaner assembly.
10. Connect the negative battery cable.
11. Fill the cooling system. Start the engine and check for leaks.

3.8L Engine

1. Disconnect the negative battery cable.
2. Drain the cooling system into a suitable container.
3. Remove the serpentine belt.
4. Disconnect the radiator inlet hose from the water pump.
5. Unfasten the water pump pulley bolts/screws and remove the pulley.
6. Remove the water pump pulley retaining bolts, then remove the pump from the vehicle.
7. Remove and discard the gasket and thoroughly clean the gasket mating surfaces

To install:

1. Position a new water pump gasket, then install the pump. Secure using the water pump retaining bolts/screws and tighten to 11 ft. lbs. (15 Nm), plus an additional 80 degree rotation.
2. Install the water pump pulley and retaining bolts. Tighten to 115 inch lbs. (13 Nm).
3. Install the serpentine drive belt.
4. Connect the radiator inlet hose to the water pump.
5. Connect the negative battery cable.
6. Fill the cooling system. Start the engine and check for leaks.

5.7L ENGINE

1. Unplug the electrical connector from the cooling fan.
2. For 1993-95 vehicles, remove the right side cooling fan.
3. For 1996-98 vehicles, remove both cooling fan assemblies.
4. Place a suitable drain pan under the vehicle, then remove the block coolant drain plug and the knock sensor. Drain the radiator.
5. Install the drain plug and knock sensor.
6. Remove the air intake duct and air cleaner.
7. Disconnect the upper and lower radiator hoses from the water pump.
8. Remove the heater hoses from the water pump and throttle body.
9. Unplug the electrical connector from the coolant sensor.

1. Unfasten the retainers and reposition the ignition coil and bracket.
2. If equipped, remove the air pump and bracket.
3. Unfasten the water pump attaching bolts, then remove the water pump and discard the gasket. Remove the shaft coupling and water pump driveshaft seals, if necessary.

1. Thoroughly clean the gasket mating surfaces

To install:

1. If removed, install the shaft coupling and water pump driveshaft using J 39089 or equivalent water pump driveshaft O-ring installer.
2. Install the water pump with a new gasket. Tighten the bolts to 30-32 ft. lbs. (41-43 Nm).
3. If equipped, install the air pump and bracket.
4. Reposition and secure the ignition coil and bracket.
5. Attach the coolant sensor connector.
6. Connect the heater hoses to the water pump and throttle body.
7. Connect the upper and lower radiator hoses to the water pump.
8. Install the air cleaner and air inlet duct.
9. Install the electric cooling fan(s), then attach the electrical connector.
10. Refill the cooling system.
11. Connect the negative battery cable, then start the engine and check for leaks.

Hope helps (remember rated this).

drain the coolant
ok you will see a pulley with NO GROVES with FOUR 10mm bolts
that's the water pump losen the 4 bolts then remove the drive belt
remove the 4 bolts prev. loosed and remove that pulley
then there are FIVE 8mm bolts holding the water pump to front cover
remove the 5 water pump bolts
then use a screwdriver and hammer and tap the pump to seperate the pump from the cover
clean the old gasket off
install the new water pump and gasket
reassemble the vehicle
loosen the AIR BLEED SCREW ON THE BYPASS PIPE ABOVE THE WATER PUMP
refill the cooling system with coolant prev drained till a steady stream is coming out the AIR BLEED SCREW the close the bleed screw
if you need to add more coolant USE ONLY GM DEXCOL
then set your heater controls to VENT AND HOT
start the vehicle and let run till HOT AIR IS COMING OUT OF THE VENTS not WARM this will insure no air locks
hope this was help full

that hole is to let you know that your water pump is leaking inside. change water pump.

in the upper radiator hose to the engine side of an elbow with 2 screws in there is the thermostat and water pump need to remove the fan belt clucht with the fan off the bottom hose that goes from the radiator to the pump to remove the screws remove the pump the pump clean the surface and install the new pump

is it a 4 or a 6 cylinder engine, well you need to take off the fan clutch if it has one if not skip the step; its just 4 screws, then take off the acc belt, then take off the hose that goes from the radiator to the water pump; at the water pump, then remove the screws holding the water pump; make note what screw goes where some screws may be different sizes; in some 4 cyl 2.3L engines the timing belt cover has to be removed to remove the water pump, then remove the water pump, scrap off all gasket residue from the surface of the engine, take automotive silicone gasket maker and apply a small amount to the new water pump and level it out then put the included gasket over the silicone, then let it set for a couple of minutes, apply a bit more of silicone over the gasket and again let it set then replace the water pump, replace the screws and tighten all of them snug then go back and torque them between 20 and 25ft lb, replace the water hose, replace timming belt cover if removed, replace acc belt, and finally replace the fan clutch and your all set i hope you can get the job done

Removing alternator drive belt, refer to Engine.
Release the belt pulley from the water pump.



Drain coolant.
Release water pump.



Insert two M6 screws in water-pump thread and press out water pump evenly from gear case.



Installation:
Replace sealing ring.

Hi, this water pump is a stand alone unit that is connected to the block by screws. it is not part of the block.

It has a few screws and you will have to remove the drive belt as well. Once you have removed the belt and the screws, it will slide of the bolts.

Please rate and god bless:)