Mazda Trucks 1987-1993 Repair Guide

Windshield Wiper Motor

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REMOVAL & INSTALLATION



Pickup
  1. Remove the wiper arm/blade assembly. Note that the arms are different. Don't confuse them.
  2.  
  3. Remove the rubber seal from the leading edge of the cowl.
  4.  
  5. Unbolt and remove the cowl.
  6.  
  7. Remove the access hole covers.
  8.  
  9. Remove the bolts holding the wiper shaft drives.
  10.  
  11. Matchmark the position of the wiper crank arm in relation to the face of the wiper motor. Disconnect the wiper linkage from the wiper motor crank arm.
  12.  
  13. Remove the wiper linkage.
  14.  
  15. Unbolt and remove the wiper motor. Disconnect the wiring harness.
  16.  
  17. Installation is the reverse of removal. Make sure that the parked height of the wiper arms, measured from the blade tips to the windshield molding is 0.787 inch (20mm). Tighten the arm retaining nuts to 8-10 ft. lbs. (11-14 Nm).
  18.  

MPV

FRONT
  1. Remove the wiper arms.
  2.  
  3. Remove the drive link nuts from the top of the cowl.
  4.  
  5. Working under the hood, disconnect the battery ground cable.
  6.  
  7. Remove the motor and linkage mounting bolts and lift out the assembly.
  8.  
  9. After removal, you can separate the linkage from the motor. If you don't have to, don't remove the motor arm from the motor. The position of the arm on the motor shaft controls the automatic park position.
  10.  
  11. Installation is the reverse of removal. When installing the wiper arms, make sure that the at-rest position gives a gap of 30mm between the blade tips and the lower windshield molding.
  12.  

REAR

See Figures 1 through 7



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Fig. Fig. 1: Ater removing the wiper arm, pull the bushing off of the motor shaft



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Fig. Fig. 2: Using an adjustable wrench, or a 29mm ox wrench, loosen the motor shaft-to-tailgate retaining nut



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Fig. Fig. 3: Remove the motor shaft retaining nut and shaft grommet



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Fig. Fig. 4: Disengage the black rear wiper motor electrical connector



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Fig. Fig. 5: Location of the rear wiper motor assembly mounting bolts. Remove these bolts using a 10mm socket



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Fig. Fig. 6: Remove the rear wiper motor assembly from the tailgate door

  1. Disconnect the battery ground cable.
  2.  
  3. Remove the protective cap and wiper arm nut and pull off the wiper arm, seal and bushing.
  4.  
  5. Remove the liftgate inner trim panels.
  6.  
  7. Remove the weathershield.
  8.  
  9. Disconnect the wiper motor wiring.
  10.  
  11. Remove the motor mounting bolts and lift out the motor.
  12.  
  13. Installation is the reverse of removal.
  14.  

Navajo

FRONT

See Figure 7



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Fig. Fig. 7: Wiper motor removal/installation

  1. Turn the wiper switch on. Turn the ignition switch on until the blades are straight up and then turn ignition off to keep them there.
  2.  
  3. Remove the right wiper arm and blade.
  4.  
  5. Remove the negative battery cable.
  6.  
  7. Remove the right pivot nut and allow the linkage to drop into the cowl.
  8.  
  9. Remove the linkage access cover, located on the right side of the dash panel near the wiper motor.
  10.  
  11. Reach through the access cover opening and unsnap the wiper motor clip.
  12.  
  13. Push the clip away from the linkage until it clears the nib on the crank pin. Then, push the clip off the linkage.
  14.  
  15. Remove the wiper linkage from motor crank pin.
  16.  
  17. Disconnect the wiper motor's wiring connector.
  18.  
  19. Remove the wiper motor's three attaching screws and remove the motor.
  20.  

To install:
  1. Install the motor and attach the three attaching screws. Tighten to 60-65 inch lbs. (6-7 Nm).
  2.  
  3. Connect the wiper motor's wiring connector.
  4.  
  5. Install the clip completely on the right linkage. Make sure the clip is completely on.
  6.  
  7. Install the left linkage on the wiper motor crank pin.
  8.  
  9. Install the right linkage on the wiper motor crank pin and pull the linkage on to the crank pin until it snaps.
  10.  

The clip is properly installed if the nib is protruding through the center of the clip.

  1. Reinstall the right wiper pivot shaft and nut.
  2.  
  3. Reconnect the battery and turn the ignition ON . Turn the wiper switch off so the wiper motor will park, then turn the ignition OFF . Replace the right linkage access cover.
  4.  
  5. Install the right wiper blade and arm.
  6.  
  7. Check the system for proper operation.
  8.  

REAR
  1. Disconnect the negative battery cable.
  2.  
  3. Remove the wiper arm and blade.
  4.  
  5. Remove the liftgate interior trim.
  6.  
  7. Remove the motor attaching bolts (3). Disconnect the electrical leads.
  8.  
  9. Remove the wiper motor from the vehicle.
  10.  
  11. Install the wiper motor in position and connect the electrical leads.
  12.  
  13. Install the liftgate trim. Connect the negative battery cable.
  14.  

 
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