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1994 - 1996 Corvette: Service Bulletin: Intermittent Steering Column Snap or Clink Noise When Turn

Subject: Intermittent Steering Column Snap or Clink Noise When Turn
Model and Year:
1994-96 BUICK CENTURY, LASABRE, PARK AVENUE, REGAL, ROADMASTER
1995-96 BUICK RIVIERA
1994-96 CADILLAC CONCOURS, DEVILLE, ELDORADO, FLEETWOOD, SEVILLE
1994-96 CHEVROLET CAMARO, CAPRICE, CORVETTE, LUMINA, LUMINA APV
1995-96 CHEVROLET MONTE CARLO
1994-96 OLDSMOBILE CUTLASS CIERA, CUTLASS SUPREME, EIGHTY EIGHT, NINETY EIGHT, SILHOUETTE
1995-96 OLDSMOBILE AURORA
1994-96 PONTIAC BONNEVILLE, FIREBIRD, GRAND PRIX, TRANS SPORT WITH TILT STEERING COLUMNS
1995-96 CHEVROLET AND GMC C/K, S/T TRUCK 1994-96 CHEVROLET AND GMC M/L AND G VANS WITH TILT STEERING COLUMNS
Source: Chevrolet Dealer Service Bulletin
Bulletin Number: 56-32-02B

REVISION: 04/11/96

THIS BULLETIN IS BEING REVISED TO ADD THE PASSENGER CARS AND UPDATE PARTS INFORMATION. PLEASE DISCARD CORPORATE BULLETIN NUMBER 56-32-02 (SECTION 3 - STEERING/SUSPENSION).

REVISION: 09/12/97

THIS BULLETIN IS BEING REVISED TO CORRECT THE TRUCK MODELS AND PART NUMBER DESCRIPTIONS. PLEASE DISCARD CORPORATE BULLETIN NUMBER 56-32-02A, DATED APRIL, 1996 (SECTION 3 - STEERING/SUSPENSION).

CONDITION:

SOME OWNERS MAY COMMENT ON AN INTERMITTENT STEERING COLUMN SNAP OR CLICK NOISE WHILE TURNING. THE SNAPPING OR CLICKING MAY ALSO BE FELT IN THE STEERING WHEEL.

CAUSE:

THE UPPER BEARING RACE SEAT MAY, UNDER SOME TURNING CONDITIONS, MOVE IN AN AXIAL DIRECTION ALONG THE UPPER STEERING SHAFT. THE NOISE IS A RESULT OF THE INNER RACE SEAT HANGING UP ON THE SHAFT AND THEN SUDDENLY RELEASING CAUSING A SNAPPING OR CLICKING NOISE.

CORRECTION:

A NEW UPPER BEARING SPRING WITH INCREASED STIFFNESS HAS BEEN DEVELOPED AND SHOULD BE INSTALLED IN THE STEERING COLUMN. THE NEW SPRING WILL INCREASE THE PRELOAD BETWEEN THE UPPER BEARING INNER RACE SEAT AND THE UPPER STEERING SHAFT. TO ACCOMMODATE THE NEW SPRING WITH INCREASED STIFFNESS, THE CANCEL CAM WILL ALSO NEED TO BE REPLACED. THE NEW SPRING AND CANCEL CAM, ALONG WITH A RETAINER RING AND AN UPPER BEARING INNER RACE SEAT ARE INCLUDED IN THE PARTS KIT LISTED BELOW.

SERVICE PROCEDURE:

FOLLOW THE INSTRUCTIONS GIVEN IN SECTION 3F5 OF THE APPROPRIATE SERVICE MANUAL AND THOSE CONTAINED IN KIT. BE SURE TO USE ALL PARTS SUPPLIED IN THE SERVICE KIT.

PARTS INFORMATION:

PART NUMBER------DESCRIPTION

26059701------1994-96
26059701------1994-95 M/L/G VANS
26059702------1995-96 BUICK "G"
26059703------1995-96 OLDSMOBILE "G"
26059704------1995-96 C/K, S/T TRUCK
26059704------1996 M/L/G VANS (BOTH STYLES OF G VAN)
26059705------1994-96 "Y"

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.
 
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