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Door Windows

  1. Remove switch plates. See WINDOW SWITCH  . Remove screw in switch plate opening. Insert flat-blade tool between upper rear corner of carpet attached to door trim panel. Disengage fastener, and fold back carpet.
  2. Remove speaker (if equipped). Remove side door inflatable restraint side impact inflator module and side impact sensing module. See AIR BAG RESTRAINT SYSTEM article. Remove water deflector by removing fastener and peel deflector from inner panel.
  3. To adjust parallelism, raise window to 1/2 inch (13 mm) below full up position. Check parallelism on upstroke of window motion. Gap from horizontal edge of window to weatherstrip should be even at front and rear of window. Adjust parallelism as needed by loosening and repositioning of inner cam bolts. Tighten inner panel cam bolts to 97 INCH lbs. (11 N.m).
    NOTE: For fore/aft adjustment, moving window too far forward will increase door closing effort and reduce seal contact a "B" pillar.
  4. Window fore/aft adjustment is necessary if space between window and "B" pillar weatherstrip retainer is not less than 1/4 inch (6-7 mm) with window up and door closed. To adjust, loosen regulator to window sash channel bolts and reposition window. Recheck adjustment. Readjust as necessary. Tighten sash channel bolts to 97 INCH lbs. (11 N.m).
  5. To Adjust window upstop, remove roof rail weatherstrip. Insert one inch (2.6 cm) wide roll of masking tape in weatherstrip retainer. See Fig 1 .
  6. Window should be in full up position and door closed.
  7. Measure gap between edge of weatherstrip retainer assembly and top edge of window. See Fig 1 .
  8. Gap should be 1/8 inch (3 mm). If gap is not within specification, figure amount of movement needed and adjust upstops accordingly. Window upstop adjusters are color coded. Front upstop adjuster is Neutral in color, rear adjuster is Black. One full turn of adjuster bolt equals one mm of glass movement. If facing door inner panel, clockwise rotation moves glass up, counterclockwise moves glass down. Lower window slightly to relieve pressure before moving adjusters.
  9. Reinstall roof rail weatherstrip, water deflector, speaker and door trim panel. Recheck adjustment. Readjust if necessary.
    Fig 1: Measuring Upstop Clearance
    G98D00433Courtesy of GENERAL MOTORS CORP.
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