Chevrolet Full Size Cars 1979-1989

Wiper Motor

Print

REMOVAL & INSTALLATION





Click image to see an enlarged view

Fig. Fig. 1 Windshield wiper motor installation rectangular motor assembly



Click image to see an enlarged view

Fig. Fig. 2 Some vehicle covered by this guide utilize a round wiper motor assembly



Click image to see an enlarged view

Fig. Fig. 3 Tag and disconnect the hoses and wiring from the wiper motor/pump assembly



Click image to see an enlarged view

Fig. Fig. 4 Release any locktabs, then carefully withdraw the wiring connectors



Click image to see an enlarged view

Fig. Fig. 5 There may be wiring harness connectors located on the both the sides and front of the assembly



Click image to see an enlarged view

Fig. Fig. 6 In this case 2 connectors share a terminal cavity of the front of the housing



Click image to see an enlarged view

Fig. Fig. 7 Once the transmission drive link nuts are loosened carefully pry on the drive link to separate it from the crank arm



Click image to see an enlarged view

Fig. Fig. 8 When prying the drive link loose, be careful not to damage the linkage, only pry sufficiently to separate the link from the crank arm



Click image to see an enlarged view

Fig. Fig. 9 Loosen and remove the pump mounting bolts, starting with the hard to reach bolts first



Click image to see an enlarged view

Fig. Fig. 10 Some bolts may be difficult to access without the proper ratchet extensions



Click image to see an enlarged view

Fig. Fig. 11 Remove the top mounting bolt last as it is the easiest to reach



Click image to see an enlarged view

Fig. Fig. 12 With all fasteners removed the pump may be separated from the cowl

Your car may be equipped with either a round motor or a rectangular motor assembly.

  1. Make sure that the wiper motor is in the park position, then disconnect the negative battery cable.
  2.  
  3. If equipped, remove the screen or grille that covers the cowl area above the wiper motor linkage.
  4.  
  5. Tag and disengage the wiring from the motor and the hoses from the washer pump.
  6.  
  7. Reach through the cowl opening and loosen, but do not remove the nuts which attach the transmission drive link to the motor crank arm. Then, disconnect the drive link from the crank arm.
  8.  

Some wiper motors will utilize lower retaining screws which are difficult or impossible to access without using an extension. Make sure all bolts are removed before attempting to remove the motor.

  1. Remove the motor attaching bolts (usually 3) then remove the motor, guiding the crank arm through the hole. To install:
  2.  
  3. Make sure the motor is in the park position.
  4.  
  5. Install the motor to the cowl while guiding the crank arm through the hole, then install and tighten the motor attaching bolts.
  6.  
  7. With the crank arm attached to the drive link, tighten the retaining nuts.
  8.  
  9. Engage the motor wiring.
  10.  
  11. If equipped, install the screen or grille to the cowl area.
  12.  
  13. Connect the negative battery cable.
  14.  
  15. Test the motor to insure that it returns to the park position and that the washers work. Make sure that there is no interference on either side of the windshield and that the wiper arms do not bind.
  16.  

 
label.common.footer.alt.autozoneLogo