Info - Revised Wiper Arm Replacement Procedure

This bulletin is being issued to provide new information about the latest Wiper Arm Replacement Procedure for the vehicles listed above. This same information will be included in the Wiper/Washer Systems sub-section of the applicable 2000 Service Manuals.

1. Run the wiper arms into the park position.
2. Disconnect the washer hose from the air inlet grille panel.



3. Remove the cover from the nut holding the wiper arm.
4. Remove the wiper arm nut.

Important: A battery terminal puller should be used if rocking the wiper arm fails to loosen it from the pivot shaft.

5. Rock the wiper arm up and down to loosen and remove the arm from the pivot shaft.



6. Depress the end of the wiper blade retaining clip and slide the blade off of the wiper arm hook.
7. Bring the wiper arm hook out through the opening in the wiper blade assembly.

1. Install the wiper blade onto the arm by placing the arm hook through the opening in the wiper blade. Slide the arm hook onto the blade retaining clip until it clicks into position.

Notice: The wiper system must be in the park position when installing the wiper arms. If the wiper system is not in the park position, damage to the wiper system and the vehicle may occur.

2. Operate the wiper system and then turn the wiper control switch to the 'OFF' position to ensure the wiper system is in the park position.



3. 2000 Buick LeSabre

* Passenger Side -- 107.2 mm (4.22 in)

* Driver Side -- 68.1 mm (2.68 in)




4. 2000 Pontiac Bonneville

* Passenger Side -- 102.3 mm (4.03 in)

* Driver Side -- 69.9 mm (2.75 in)




5. 2000 Cadillac DeVille

* Passenger Side -- 63.4 mm (2.50 in)

* Driver Side -- 42.7 mm (1.68 in)




6. 2000 Cadillac Seville

* Passenger Side -- 84.6 mm (3.33 in)

* Driver Side -- 84.4 mm (3.32 in)

Important: Clean the wiper arm pivot shaft knurls with a wire brush.

7. Install the wiper arm onto the pivot shaft while aligning the wiper blade with locating marks on the windshield. If the windshield does not have locating marks, locate the center of the blades to the distance shown up from the base of the windshield.



8. Install the nut on the wiper arm pivot shaft.

Tighten
Tighten the nuts to 32 N·m (24 lb ft).

9. Install the cover onto the nut.

Important: Lubricate the washer hose with the windshield washer solvent to ease attachment to the fitting on the air inlet grille panel.

10. Attach the washer hose to the fitting on the air inlet grille panel.
11. Operate the wiper and the washers and check for proper operation.