1999 Park Avenue water pump removal

1. Drain the cooling system until the coolant is below the level of the water pump.
2. Loosen the water pump pulley bolts.
3. Rotate the drive belt tensioner to release the tension on the drive belt.
4. Remove the drive belt from the right idler pulley.
5. Carefully release the drive belt tensioner spring tension.
6. Remove the water pump pulley bolts.
7. Remove the water pump pulley.
8. Remove the water pump bolts.
9. Remove the water pump.
10. Remove the water pump gasket.
11. Clean the water pump mating surfaces.

To install:

Fig. Remove the mounting bolts (3) to remove the water pump (1) and gasket (2).

1. Install the water pump gasket (2).
2. Install the water pump (1).
3. Install the water pump bolts (3). Tighten the bolts to 10 Nm (89 inch lbs.).
4. Install the water pump pulley. Loosely install the pulley bolts.
5. Insure the drive belt is properly centered on all the pulleys except the right idler puller.
6. Rotate the drive belt tensioner away from the drive belt.
7. Install the drive belt to the right idler pulley.
8. Release the tensioner allowing the drive belt tensioner to come in contact with the drive belt.
9. Inspect the drive belt to insure the belt is properly centered on all the pulleys.
10. Tighten the water pump pulley bolts. Tighten the bolts to 25 Nm (18 ft. lbs.).
11. Fill the cooling system.
12. Inspect the cooling system for leaks.

1. Remove the water pump pulley bolts and the pulley; the long bolt can be removed through the access hole in the body side rail.
   

Hello. Trace the pulleys to the components they turn. That's it. Joe

On your idler pulley there is a 15mil bolt... put a wrench on this bolt (long wrench) and turn it like you are turning it tighter. The idler pulley will move forward releasing tension on your belt. Make sure you pull the belt off the alternator pulley when the idler pulley is compressed. You may want to pay attention to how the belt is on there, maybe 2 people would be a good idea too if you aren't familiar with your car.

Removal
1. Support the vehicle on jack stands.
2. Disconnect the negative battery cable.
3. Drain the cooling system.
4. Remove water pump drive belt.
5. Disconnect the coolant hoses at the water pump.
6. Remove the water pump pulley bolts (long bolt removed through the access hole provided in
the body side rail), then remove the pulley.
7. Remove the torque axis mount. See TORQUE AXIS ENGINE MOUNT .
8. Remove the water pump attaching bolts and pump.
9. Clean all gasket mating surfaces.



Installation
1. Using a new gasket, install the water pump on the engine. Tighten the bolts to
specifications. See TORQUE SPECIFICATIONS .
2. Install the torque axis mount. See TORQUE AXIS ENGINE MOUNT .
3. Install the water pump pulley, then tighten the bolts to specifications. See TORQUE
SPECIFICATIONS .
4. Connect the coolant hoses onto the pump.
5. Install the water pump drive belt.
6. Fill the cooling system.
7. Add coolant supplement tablets.
8. Connect the battery cable, then start the engine.
9. Inspect for coolant leaks.

pretty simple really take the belt off and the pulley is held on with a 12mm or 14mm bolt and then put it all back together the way it came apart. hope this has helped you and good luck with you project !

Hi once you have all the bolts off for the mount raise the front of the motor up till you can remove the center part of the mount
I use a floor jack and a 2x4 across the oil pan then remove the studs for the motor mount bracket now remove the bracket and now you can get the water pump out
hope this helps

that is not an idler pully that is the power steering pully if you feel through the holes in the pully you will feel the 13 mm head bolts that hold the pump to the block remove those bolts the pump will drop down and you can then remove the water pump also you have to remove the studs using the inverted torx end on the stud to unscrew it then the mount will come out

You need to poke a small extension with a 13mm socket through the holes in the power steering pulley, undo it, and slide it back.

Remove the drive belt, remove the water pump pulley and remove bolts from (6 of them I think) pump, this is an easy one, did my wife's buick in 1 hour.