GM S10/S15/Sonoma Pick-Ups 1982-1993 Repair Manual

Wiper Linkage

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REMOVAL & INSTALLATION



See Figures 1, 2 and 3

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the wiper arms from the linkage so the cowl may be removed.
  4.  
  5. Remove the cowl vent grille and screen. On early model vehicles, the a windshield washer hose may be connected to a hard plastic fitting located under the cowl grille. If the hose connection is very tight it may make removing the cowl grille difficult. Take your time if difficulty is encountered, if possible, reach underneath the grille to disconnect the hose from the fitting.
  6.  



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Fig. Fig. 1: Exploded view of a common windshield wiper assembly



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Fig. Fig. 2: Disconnecting the wiper transmission from the motor crank arm ball

  1. Loosen but DO NOT remove the nuts which hold the drive link to the motor crank arm. Detach the drive link from the crank arm.
  2.  
  3. Remove the transmission linkage-to-cowl retaining screws, then carefully remove the linkage through the top of the cowl.
  4.  

To install:
  1. Carefully guide the linkage assembly through the opening in the top of the cowl.
  2.  
  3. Secure the transmission linkage using the retainers. Tighten the fasteners securely, but do not overtighten them.
  4.  
  5. Position the drive link socket onto the crank arm ball of the wiper motor assembly. Evenly tighten the socket nuts to secure the connection.
  6.  
  7. Install the cowl vent grille and screen. On vehicles equipped with a plastic fitting attached to the cowl grille, the washer hose should be connected as the grille is positioned. Make sure the hose is not pinched or damaged as the grille is fastened.
  8.  
  9. Install the wiper arm and blade assemblies to the transmission linkage.
  10.  
  11. Connect the negative battery cable and verify proper wiper operation.
  12.  



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Fig. Fig. 3: Connecting the wiper transmission and the motor crank arm ball

 
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