ParkAvenue 1997-1999

Hood

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Alignment



Specific to:

Buick LeSabre 1986-1999

Buick Park Avenue 1996-1999

Oldsmobile 88 1992-1999

Oldsmobile Delta 88 1986-1988

Oldsmobile LSS 1996-1999

Pontiac Bonneville 1987-1999

Fore and aft adjustment may be made at the hinge-to-hood attaching screws. Vertical adjustment at the front may be made by adjusting the rubber bumpers up or down. These adjustment may require several steps. Take care to lower the hood slowly each time. If the hood is closed hard when it is not aligned, you can damage the body or painted surface.



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Fig. Hood and latch adjustment and alignment specifications - LeSabre shown, other models similar

Hood Primary Latch
  1. Loosen the bolts and set the hood primary latch so that the top edge of the latch is 2.4 in. (61mm) from the top of the radiator support. This will be the starting point for up/down latch adjustment. The bolts should be snugged to hold the latch in position.
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  3. Carefully lower the hood, but do not allow the striker to engage with the latch. Check the side-to-side adjustment of the latch to the striker. Raise the hood and tighten the primary latch bolts to 64 inch lbs. (8 Nm).
  4.  



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Fig. Location and specifications of the hood primary latch

  1. You must perform a drop test to determine if an up/down latch adjustment is necessary. The hood drop test will determine the amount of drop force required for the striker to fully engage with the latch.
    1. Place a millimeter and inch ruler, between the hood and fender.
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    3. Raise the hood so the front upper edge is 3 1 / 6 in. (60mm) above the top surface of the fender. This part of the test will determine if the latch is set too high.
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    5. Drop the hood. The striker should not engage with the latch.

      Click image to see an enlarged view

      Fig. Performing a drop test to adjust the hood latch

    6.  
    7. Repeat the test by increasing the measurement to 3 3 / 4 in. (85mm). If the striker engages with the latch below a 4 1 / 4 in. (110mm) test height, the latch is too high.
    8.  
    9. Repeat the test at 4 1 / 4 in. (110mm) and 6 3 / 6 in. (160mm). The striker should engage in this range. If the striker does not engage at 6 3 / 6 in. (160mm), the latch is too low.
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    11. Adjust the latch as necessary, then tighten the bolts to 64 inch lbs. (8.5 Nm).
    12.  
    13. Check the latch for proper operation.
    14.  

  2.  

Removal & Installation



Specific to:

Buick LeSabre 1986-1999

Buick Park Avenue 1996-1999

Oldsmobile 88 1992-1999

Oldsmobile Delta 88 1986-1988

Oldsmobile LSS 1996-1999

Pontiac Bonneville 1987-1999

  1. Raise the hood. Install protective coverings over the fenders, to prevent damage to the paint and moldings when removing or installing the hood.
  2.  
  3. Disconnect the underhood lamp wire.
  4.  



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Fig. If equipped, unplug the underhood lamp wiring

  1. Mark the position of the hinge on the hood to lid in alignment when hood is reinstalled.
  2.  



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Fig. Use a suitable paint marker or equivalent to matchmark the hood hinges

  1. Use extreme care and remove the spring from hinge, if equipped.
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  3. With the hood supported, loosen the ball socket retainers, then pry off the assist rods.
  4.  
  5. With an assistant's help supporting the hood, remove the hinge-to-hood screws and bolts on each side of the hood.
  6.  



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Fig. On some vehicles, you must use a ratchet with a Torx® socket to remove the hood retainers



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Fig. Check under the hood insulation for any hidden hood mounting bolts ...



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Fig. ... then, with someone supporting the hood, remove the retaining bolts

  1. With the help of an assistant, carefully remove the hood.
  2.  



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Fig. Exploded view of the hood and retainers - 1998 vehicle shown, others similar



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Fig. Always have an assistant help you when removing the hood

To install:

  1. With an assistant's help, align the hood with the marks made during removal.
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  3. Install the hood to hinge screws on each side of the hood and hand-tighten.
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  5. Install the hood hinge spring, if equipped.
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  7. Align the hood and tighten the retaining bolts to 21-24 ft. lbs. (28-33 Nm).
  8.  
  9. If equipped, install the open assist rods.
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  11. Connect the underhood lamp wire.
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