Crank Arm Replacement Only
1. Disconnect wiper linkage from ball stud on crank arm assembly (Figure 2, Item 6).
2. Remove wiper motor crank arm assembly retaining screw (Figure 2, Item 5).
DO NOT REMOVE CRANK ARM ASSEMBLY AT THIS TIME
3. Turn ignition switch to "Accessory" position.
4. Set wiper switch to maximum "Delay" position.
(1. Without reinforcement, 2. With welded reinforcement, 3. With riveted reinforcement)
5. Wait for wiper motor and crank arm assembly to cycle once and stop in the "Pause" or "Innerwipe" position.
6. Turn the ignition switch to "Off" position when the wiper motor and crank arm assembly are in the "Pause" or "Innerwipe" position and not moving.
IMPORTANT:
Before disconnecting negative battery cable, record radio station pre-sets.
7. Disconnect negative battery cable.
8. Remove crank arm assembly from wiper motor shaft (NOT TO BE REUSED).
9. To properly align motor, GENTLY place "new" crank arm on wiper motor shaft. Do not apply any downwards pressure.
IMPORTANT:
Crank arm must rotate freely on motor shaft during next step. If the crank arm does not move freely, remove it and re-perform Step # 9.
10. Rotate crank arm (Figure 3, Item 4) on motor shaft until depressed park actuator arm (Figure 3, Item 5) is 4 to 6 mm away from metal tab on the wiper motor mounting bracket (Figure 3, Item 6).
11. Using pliers or a screwdriver, bend entire length of metal tab on wiper motor mounting bracket inwards so that it is in alignment with the depressed Park actuator arm when there is a 4 - 6 mm gap. See Figure 3 & 4, Item 6.
IMPORTANT:
Do not just bend the end of the metal tab. The entire length of the metal tab must be straight and properly positioned before proceeding. For the wiper system to operate correctly the edge of the metal tab must align with the center of the notch in the actuator arm.
12. Once properly aligned, remove crank arm from wiper motor shaft.
13. Disconnect washer hose from bottom of wiper motor mounting bracket.
14. Position reinforcement plate on mounting bracket and secure with vise grips (Refer to Figure 5 for proper reinforcement positioning).
IMPORTANT:
Make sure reinforcement plate is making complete contact across entire back side of metal tab and that it is held securely in place by the vise grips.
15. Center punch the locations of two 1/8 in. (Figure 5, Item 4) diameter holes with reinforcement plate in correct position.
16. Prior to drilling, cover surrounding areas with shop towels.
17. Wearing safety glasses and using reinforcement plate as a guide, drill two 1/8 in. diameter holes at locations center punched in Step # 15.
IMPORTANT:
Leave reinforcement plate in position when drilling. Doing so will assure correct hole alignment.
18. Carefully remove shop towels and remove any remaining metal debris with compressed air.
19. After drilling, inspect and remove burrs from holes on bottom side of bracket.
20. Following rivet gun manufacturer's operating instructions, fasten reinforcement plate to bracket with rivets supplied in kit.
21. Install NEW crank arm assembly on wiper motor shaft while maintaining a 4 - 6 mm gap between end of depressed park actuator arm and metal tab (Figure 3 & 4, Item # 6). Proper positioning has been achieved if a 13/64 drill bit can be inserted through crank arm hole (Figure 2, Item # 2) and into threaded motor housing hole.
IMPORTANT:
Firmly hold crank arm in position to prevent wiper motor shaft from rotating when tightening retaining bolt.
22. Install crank arm retaining bolt and tighten to 14 - 17 N.m. (124 - 150 lb. in.).
IMPORTANT:
Before connecting linkage to ball stud, ensure that adequate lubricant is present (GMSPO 1051344 or equivalent). When connecting wiper linkage to ball stud on crank arm, be sure that the linkage is centered on the ball portion of the stud and that it can rotate and pivot without restriction after the screws are tightened.
23. Reconnect wiper linkage to ball stud on crank arm assembly and tighten screws to 5 N.m (44 lb. in.).
24. Reconnect washer hose to bottom of wiper motor mounting bracket.
25. Reconnect negative battery cable.
26. Turn ignition switch to "Accessory" position.
27. With a "DRY" windshield, turn wiper switch to "Off" position, and verify wipers park correctly.
28. Verify that all wiper functions (delay, low, high, wash, etc.) operate correctly.
29. Turn ignition switch to "Off".
30. Install wiper module assembly plastic cover.
31. Reset clock and radio pre-sets.
32. Install the GM Campaign Identification Label. "Crank Arm Replacement Only"
IMPORTANT:
This procedure should only be followed if wiper motor mounting bracket already has reinforcement plate installed.
1. Disconnect wiper linkage from ball stud on crank arm assembly (Figure 2, Item 6).
2. Remove wiper motor crank arm assembly retaining screw (Figure 2, Item 5).
DO NOT REMOVE CRANK ARM ASSEMBLY AT THIS TIME
3. Turn ignition switch to "Accessory" position.
4. Set wiper switch to maximum "Delay" position.
5. Wait for wiper motor and crank arm assembly to cycle once and stop in the "Pause" or "Innerwipe" position.
6. Turn the ignition switch to "Off" position when the wiper motor and crank arm assembly are in the "pause" or "Innerwipe" position and not moving.
IMPORTANT:
Before disconnecting negative battery cable, record radio station pre-sets.
7. Disconnect negative battery cable.
8. Remove crank arm assembly from wiper motor shaft (NOT TO BE REUSED).
9. To properly align motor, T Y place "new" crank arm on wiper motor shaft. Do not apply any downwards pressure.
IMPORTANT:
Crank arm must rotate freely on motor shaft during next step. If the crank arm does not move freely, remove it and re-perform Step # 9.
10. Install new crank arm assembly on wiper motor shaft while maintaining a 4 - 6 mm gap between end of depressed park actuator arm and metal tab (Figure 3 & 4, Item # 6). Proper positioning has been achieved if a 13/64 drill bit can be inserted through crank arm hole (Figure 2, Item # 2) and into threaded motor housing hole.
IMPORTANT:
Firmly hold crank arm in position to prevent wiper motor shaft from rotating when tightening retaining bolt.
11. Install crank arm retaining bolt and tighten to 14 - 17 N.m. (124 - 150 lb. in.).
IMPORTANT:
Before connecting linkage to ball stud, ensure that adequate lubricant is present (GMSPO 1051344 or equivalent). When connecting wiper linkage to ball stud on crank arm, be sure that the linkage is centered on the ball portion of the stud and that it can rotate and pivot without restriction after the screws are tightened.
12. Reconnect wiper linkage to ball stud on crank arm assembly and tighten screws to 5 N.m (44 lb. in.).
13. Reconnect negative battery cable.
14. Turn ignition switch to "Accessory" position.
15. With a "DRY" windshield, turn wiper switch to "Off" position, and verify wipers park correctly.
16. Verify that all wiper functions (delay, low, high, wash, etc.) operate correctly.
17. Turn ignition switch to "Off".
18. Install wiper module assembly plastic cover.
19. Reset clock and radio pre-sets.
20. Install the GM Campaign Identification Label.