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How to Replace Headlight Lamps in a 1998 Pontiac Grand Prix

The 1998 Pontiac Grand Prix uses a single unit headlight with a dual internal filament for the low and high beams. While this simplifies the location of the headlight bulb, its not uncommon for one of the filaments to become faulty while the other still works, and this requires the replacement of the bulb. When handling the replacement bulb(s), its important to avoid skin contact with the glass bulb portion. Halogen headlights burn extremely hot, and oils, perspiration or other contaminants on skin will create a weak spot on the bulb and compromise its life.

Instructions

1

Open the hood of the Pontiac Grand Prix after making sure the headlight switch is in the "Off" position. Apply the parking brake for added safety if desired.

2

Look for the Phillips head screw on top of the junction of the headlight assembly and the marker/directional light assembly. Loosen the screw about 1/4 of an inch with a Phillips head screwdriver. The loosened screw will act like a hinge for easier removal of the assembly.

3

Locate the headlight assembly retaining bolts on top of the radiator rail at each rear edge of the assembly. Remove the bolts with a ratchet and 10 mm socket.

4

Wiggle the headlight assembly and the marker/directional light assembly back and forth to pivot the two assemblies on the hinge screw until they come out as a connected unit from their cavity (just far enough to reach a hand behind to access the faulty headlight).

5

Disconnect the blue-capped wire harness plug from the headlight socket.

6

Twist the headlight socket a 1/4 turn counterclockwise to remove it from the assembly.

7

Align the tabs on the replacement headlight (being caul not to touch the glass bulb) to the grooves of the headlight assembly and push it slightly inward before turning it clockwise a 1/4 turn.

8

Plug the wire harness connection back into the headlight socket. With the headlight assembly resting on the shelf of the cavity/bumper, test the headlights before putting the assemblies in place. Be sure to test both low and high beams for operation.

9

Reinstall the headlight assembly and the marker/directional assembly in place by reversing the removal procedure. Replace the headlight assembly retaining bolts, tighten the hinge screw, remove the tools and close the hood.

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Labels: 1998, a, grand, headlight, how, in, lamps, pontiac, prix, replace, to