GM Service Manual Online
For 1990-2009 cars only

CRUNCH NOISE ON TURNS NEW MOUNT PROCEDURE

SUBJECT: NOISE (SQUEAKS AND RATTLES) - 1982 AND 1983 'E' AND 'K' STYLES VEHICLES AFFECTED: 1982 AND 1983 TORONADO, RIVIERA, ELDORADO AND SEVILLE A CRUNCHING TYPE NOISE MAY BE HEARD IN A 1982 OR 1983 'E' OR 'K' BODY WHEN TURNING OR DRIVING OVER UNEVEN SURFACES. THE NOISE MAY BE DUE TO THE NUMBER 3 POSITION BODY MOUNT CUSHION. THE CUSHION HAS AN INNER METAL SLEEVE WHICH MAY BE CONTACTING THE FRAME OR THE BODY. TO CORRECT THIS CONDITION IT WILL BE NECESSARY TO INSTALL A NEW BODY MOUNT CUSHION (PART NUMBER 488610) IN EACH NUMBER 3 POSITION. NO. 3 POSITION BODY MOUNT CUSHION REMOVAL - LEFT AND RIGHT SIDE. 1. HOIST THE CAR AND REMOVE THE BOLTS FROM BODY MOUNT POSITIONS 1,2 AND 4 ON BOTH SIDES OF THE CAR (REFER TO FIGURE). 2. POSITION TWO JACK STANDS UNDER THE FRONT OF THE FLOOR PAN. USE A SUITABLE PIECE OF WOOD BETWEEN THE JACK STANDS AND FLOOR PAN TO PREVENT FLOOR PAN DAMAGE. 3. USING JACK STANDS AND/OR A HOIST, LIFT THE BODY FROM THE FRAME ABOUT 2 OR 3 INCHES. REMOVE THE NUMBER 3 POSITION BODY MOUNT CUSHION FROM THE FRAME. INSTALLING NEW BODY MOUNT CUSHION. 1. LUBRICATE THE NEW BODY MOUNT CUSHION WITH CHASSIS GREASE AS SHOWN IN THE FIGURE. 2. POSITION AND INSTALL THE NEW BODY MOUNT CUSHION. 3. RETURN THE BODY AND FRAME TO THE ORIGINAL POSITION AND REINSTALL BODY MOUNT BOLTS NO. 1, NO. 2 AND NO. 4. TORQUE THE BODY MOUNT BOLTS TO 50 N.M (37 FT. LBS.). (ILLUSTRATION)

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.