GM Century/Lumina/Grand Prix/Intrigue 1997-2000

Windshield Wiper Blade and Arm

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REMOVAL & INSTALLATION



The wiper arms are attached to an assembly known as the wiper transmission, sometimes also called the wiper pivot or the wiper arm shaft.

  1. Turn the ignition switch to the ACC position.
  2.  
  3. Set the wiper switch to the PULSE position.
  4.  
  5. Turn the ignition switch OFF when the wiper arm is in the innermost wipe position and not moving.
  6.  
  7. Disconnect the washer hose from the nozzle.
  8.  
  9. Remove the protective cover from the wiper arm retaining nut.
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  11. Remove the nut from the wiper arm and transmission shaft.
  12.  
  13. Remove the wiper arm from the transmission drive shaft. Use a rocking motion. In some cases, a small puller like a battery terminal puller can be used to coax to wiper arm from the transmission shaft.
  14.  



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Fig. Disconnect the washer hose and remove the protective cap from the wiper arm



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Fig. Remove the wiper arm retaining nut



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Fig. Insert a suitable pin through the two holes located next to the arm pivot to hold the arm off the glass, making it easier to rock the arm back and forth and remove it from the pivot shaft

To install:

  1. Clean any metal shavings from the knurls of the wiper transmission shafts.
  2.  
  3. Return the wiper transmission to the PARK position using the following procedure:
    1. Turn the ignition switch to the ACC position.
    2.  
    3. Set the wiper switch ON and then OFF.
    4.  
    5. Turn the ignition switch OFF .
    6.  

  4.  
  5. Install the wiper arm and position the wiper arm slightly below the stop surface of the park ramp. Push the wiper arm down slightly onto the wiper transmission drive shaft completely,
  6.  
  7. Install the wiper arm retaining nut and tighten to 17 ft. lbs. (23 Nm). Snap the cover back into place. Lubricate the washer hose with windshield wiper fluid to make it easier to connect the washer hose.
  8.  
  9. Inspect the installation. In the parked position, both wiper arm assemblies must be snug against the park ramps. Check the wipe pattern. Wet the glass and run the wipers briefly. There should be 2.17-5.20 inches (55-132mm) from the tip of the driver's side wiper blade on the outerwipe to the edge of the glass. The correct park position and outerwipe dimensions are determined with the wipers operating at low speed on wet glass.
  10.  

 
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