INSTRUMENT PANEL BUZZING NOISE INSTALL I/P INSULATORS

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

Models Affected: 1985-90 GRAND AM MODELS

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 molding.

Correction:

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

Parts are currently available from GMSPO.

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

Labor Operation Number: T1715 Labor Time: .4 Hour

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.