GM Service Manual Online
For 1990-2009 cars only

MOISTURE IN FOG LAMPS APPLY SEALER/TAPE TO LENS

SUBJECT: MOISTURE IN FOG LAMPS (SERVICE PROCEDURE)/APPLY SEALER/TAPE -----------------------------------------------------------

VEHICLES AFFECTED: 1991 PONTIAC FIREBIRD 'F' MODE'L EQTJTPPED W/FOG LAMPS ------------------------------------------------------

CONDITION:

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Moisture in fog lamps.

CAUSE:

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Water may run down the back of the lamp housing and into the lamp through the bulb socket opening. Also, some lamp housings may have a leak at the seal between the lens and the housing, also allowing water to enter the lamp.

CORRECTION:

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Perform the following procedure to prevent water from entering the lamp assembly.

1. Remove front park/turn lamp from vehicle to gain access to fog lamp.

2. Remove the outboard fog lamp retaining screw.

3. Remove fog lamp assembly from cavity by rotating the lamp assembly.

4. Disconnect bulb and ground wire from lamp assembly.

5. Apply a THIN LAYER of 3M Clear Auto Sealer (#08551) or equivalent to the seam between the glass lense and the housing to insure that the lamp is sealed. Allow to dry.

6. Apply a 102 mm (4") long piece of 1 mm (1/2") wide, grey 3M SCOTCH-MOUNT Super Automotive Attachment Tape (#006384) or equivalent to the top edge of the lamp (on top of the adhesive).

7. Install the bulb and ground wire to the lamp assembly and position the lamp assembly in the lamp cavity. Inspect the position of the tape to insure that it closes out the area between the lamp assembly and the edge of the lamp cavity.

8. Complete installation by reversing Steps 1 and 2.

9. Repeat for other side.

Use the most applicable Labour Operation and Time from the Canadian Labour Time Guide.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.