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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 737 (DOOR SYSTEM, MIRROR SYSTEM & WINDOW SYSTEM)REPAIR INSTRUCTIONSWINDOW ADJUSTMENT - DOOR
1999 GMC Forward Control 5.7 R, Automatic

Window Adjustment - Door

1999 GMC Forward Control 5.7 R, AutomaticSECTION Window Adjustment - Door
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the door trim panel. Refer to Trim Panel Replacement - Door .
  2. Reconnect the window switch to the door harness.
  3. Raise the window.
  4. Disconnect the window switch from the harness.
  5. Remove the window clamp sight access plugs.
    Fig 1: View of Window Clamp Access Plugs
    GM63834Courtesy of GENERAL MOTORS CORP.
    6. Fig 2: View Of Door Window
    GM63801Courtesy of GENERAL MOTORS CORP.
  6. Mark the location of the clamps on the window.
  7. Loosen the window clamp bolts.
  8. Jiggle the window to break the window loose from the clamps rubber seals.
  9. Adjust the window using one of the following methods:
    • Put a socket on the clamp bolt and use the socket to move the window.
      1. Adjust the window forward or reward first.
      2. Adjust the front height second.
      3. Adjust the rear height last.
    • Sit in the vehicle with the door closed and with the aid of an assistant standing outside of the vehicle, position the window in the door opening.
      1. Adjust the window forward or reward first.
      2. Adjust the front height second.
      3. Adjust the rear height last.
    10. Fig 3: Window Clamps, Molding & Retainer
    GM372701Courtesy of GENERAL MOTORS CORP.
  10. Slide the window in the window clamps as necessary.
    • The gap to the reveal molding (1) should be 5 to 8 mm (0.2 to 0.3 in).
    • The gap to the retainer (3) should be 5 to 8 mm (0.2 to 0.3 in).
    11. NOTE: Refer to Fastener Notice in Cautions and Notices.
  11. Tighten the window clamps.

    Tighten:  Tighten the window regulator window clamp bolts to 10 N.m (89 lb in).

    12. Fig 4: View of Window Clamp Access Plugs
    GM63834Courtesy of GENERAL MOTORS CORP.
  12. Open the door and install the window clamp sight access plugs.
  13. Install the door trim panel. Refer to Trim Panel Replacement - Door .
  14. Perform minor height and minor tip-in adjustments as necessary. Refer to Window Tip-In Adjustment - Door  and Window Height Adjustment - Door Minor .
RENDER: 1.0x

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  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.