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

Doors

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REMOVAL & INSTALLATION



The door hinges are bolted to the door and body. The door side hinges have elongated holes which allow for some up and down and in and out adjustment. The body side hinges have elongated holes which allow for some fore and aft adjustment.


NOTE
The body side door hinge may have four bolts: two 13mm, one Torx® and one 10mm bolt. Do not remove the 10mm bolt. A cone attached to the back side of the hinge may fall off and end up in the bottom of the A-Pillar (forward door post) causing a rattle. This cone is used for assembly purposes only and need not be removed to adjust or remove the door hinge strap (body side hinges). If replacing door hinges, to minimize door realignment, do not remove both door hinges at the same time. Do each hinge separately, and replace any broken hinges first. GM specifies that if a worn or damaged hinge is replaced, both hinges must be replaced at the same time.


WARNING
The negative battery cable should be disconnected because these vehicles are equipped with an air bag system and interior work should only be performed with the air bag system disabled. Please see for Air Bag Disarm procedures. In addition, since many GM W-Body vehicles are equipped with Theftlock® radios, this radio protection feature must be turned off. When power is removed from the vehicle, the Theftlock® radio is disabled. When the power is later restored, this radio is designed not to play. Take the time to turn off the Theftlock® feature before disconnecting the negative battery cable. Another concern is that, when working around the inside of a door, the express down switch on an electric window controls may be activated, catching and injuring a hand or arm.


NOTE
The following procedure can be used for both the front doors and the rear doors.



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Fig. Typical W-Body door hinge attachment



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Fig. View of the door hinge hardware



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Fig. Door check link-to-body arrangement



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Fig. All of the door switch wiring runs through a conduit like this that must be disconnected



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Fig. Typical door trim panel arrangement-Chevrolet show others similar

  1. Turn off the radio Theftlock® feature, if equipped.
  2.  
  3. Raise the window all the way.
  4.  
  5. Disconnect the negative battery cable and disarm the air bag system. Please see for Air Bag Disarming procedures.
  6.  
  7. Clean the hinge mounting surfaces on the door with a shop cloth and mark the hinge location on the door surface (and on the body pillar, if the hinges are being replaced, too) with a grease pencil or other suitable marker.
  8.  
  9. The electrical connections to the door must be detached. Use the following procedure:
    1. Remove the door trim panel using the procedures found in this section. Please note that GM specifies that when an inner trim panel is removed, new trim panel retainers MUST be used at assembly.
    2.  
    3. Remove the plastic water deflector sheet. Work it loose from its pressure-sensitive tape along the bottom and sides and peel it up out of the way.
    4.  
    5. If equipped, remove the energy absorber pad.
    6.  
    7. Remove the door speaker(s).
    8.  
    9. Tag for identification as necessary and detach the electrical connectors. Use care. There are numerous wires and connectors running to the door.
    10.  
    11. There is a rubber tube, or conduit, through which the electric wires to the door are routed. Carefully work this conduit loose from the door and pull the wiring harness through the opening in the door.
    12.  

  10.  
  11. The doors on this vehicle are heavy and difficult to balance. With an assistant or two steadying the door and with some sort of support under the door (many shops use a floor jack with lots of padding on the lift saddle to protect the paint), remove the 13mm bolts on the door side (not the body side) of the hinge and separate the door from the vehicle.
  12.  

To install:

  1. With an assistant or two steadying the door and with an adjustable support (floor jack) under the door, carefully install the door to the vehicle, using care to raise the door to meet and align with the door hinge bolt openings and the grease pencil outlines made earlier. When satisfied with the fit, coat the door hinge bolt threads with Loctite® Blue thread-locking compound (GM # 12345382, or equivalent) then install the 13mm bolts and tighten to 24 ft. lbs. (33 Nm). Remove the support.
  2.  
  3. Feed the door wiring harness through the opening in the door and route to the proper door devices, using the identification tags made at removal. Secure the rubber conduit to the door opening.
  4.  
  5. Align the door, as required, using the procedures found in this section.
  6.  
  7. Install the remaining components removed earlier.
  8.  

ADJUSTMENT



If the original door is being removed and installed again, one trick is to apply short pieces of masking tape, one piece to bridge the gap between the door and the rocker panel and the second piece to bridge the gap between the door and the rear door or quarter panel, depending on the door being serviced. Cut the tape at the gap using a sharp blade. When the door is being installed, use the tape as an alignment guide to get the door back into position as close as possible to the original location.

Up/Down or In/Out Adjustment

NOTE
Before attempts are made to adjust a door, verify that the door hinges are in good condition. Open the door and have an assistant lift the latch end of the door. If more than about 1 / 16 inch or movement can be detected at the door, the hinge pin and/or bushings may be worn and the hinge may need to be serviced or replaced.

  1. Loosen, but do not remove, the two 13mm door side hinge bolts.
  2.  
  3. Move the door up or down and in or out by reposition the door as necessary. An assistant may be required.
  4.  
  5. When satisfied with the fit, tighten the bolts to 24 ft. lbs. (33 Nm).
  6.  

Fore/Aft Adjustment
  1. Remove the front fender insulator to gain access to the body side hinge bolts. The following may be helpful.
    1. The front fender insulator attaches to the fender liner at the rear of the liner. One some models it may be possible to remove the insulator by disengaging the mounting tabs from the studs and pulling it off. On other models, it may be necessary to remove the front fender liner first, using the following as a guide.
    2.  
    3. To remove the front fender liner, it will likely be necessary to first remove the front tire and wheel assembly for access.
    4.  
    5. Remove the screws from the front fender liner. There may be a screw at the front tab of the liner at the lower engine compartment side rail.
    6.  

  2.  
  3. Remove the screws from the liner at the rear of the fender and work the liner from the vehicle.
  4.  
  5. With access to the body side hinge bolts, loosen, but do not remove the two 13mm body side hinge bolts.
  6.  
  7. Loosen the one 10mm cone adjuster body hide hinge bolt. Do not remove the 10mm bolt. A cone attached to the back side of the hinge may fall off and end up in the bottom of the A-Pillar (forward door post) causing a rattle. This cone is used for assembly purposes only and need not be removed to adjust the door hinge strap (body side hinges).
  8.  
  9. Loosen, but do not remove the one Torx® bolt.
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  11. Adjust the door fore and aft by repositioning the door as necessary.
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  13. When satisfied with the fit, tighten the bolts as follows:
    1. Tighten the Torx® bolt first to 89 inch lbs. (10 Nm).
    2.  
    3. Tighten the 10mm cone bolt to 89 inch lbs. (10 Nm).
    4.  
    5. Tighten the 13mm bolts to 24 ft. lbs. (33 Nm).
    6.  

  14.  
  15. Install the fender insulator/fender liner.
  16.  

 
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