INSTRUMENT PANEL BUZZING NOISE INSTALL I/P INSULATORS

SUBJECT: INSTRUMENT PANEL BUZZING NOISE (PROCEDURE AND INSTALL I/P INSULATOR)

VEHICLES AFFECTED: 1985-90 PONTIAC GRAND AM

Condition:

---------- Some 1985-90 Pontiac Grand Ams may exhibit a buzzing noise at the right side of the instrument panel (I/P).

Cause:

------- Rough road conditions or certain engine RPMs may cause the right side of the Instrument Panel to vibrate against the right hand windshield garnish moulding.

Correction:

------------ Install I/P insulator P/N 25522468 as follows:

1. Remove RH and LH defroster grilles by prying upward gently. 2. Remove (4) I/P attaching screws in grille openings. 3. Remove RH lower insulator panel (3) screws. 4. Remove centre support screw. 5. Remove RH lower I/P corner nut. 6. Pull I/P rearward enough to gain access to garnish moulding. 7. Apply Insulator P/N 25522468. 8. Install RH lower I/P corner nut - tighten to 10 N.m (11 ft.lbs.). 9. Install centre support screw - tighten to 3 N.m (25 in.lbs.). 10. Install RH insulator and screws - tighten to 2 N.m (17 in.lbs.). 11. Install (4) upper I/P attaching screws - tighten 4 N.m (35 in.lbs.). 12. Install RH and LH defroster grilles.

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.