GRINDING/SCRAPING NOISE IN PARK/NEUTRAL. Cadillac Concours 1994

For 1990-2009 cars

# GRINDING/SCRAPING NOISE IN PARK/NEUTRAL

REVISION: 10/28/94

THIS BULLETIN IS BEING REVISED TO CHANGE THE SECOND SENTENCE IN THE CONDITION. ----------------------------------------------------------------------

#### SUBJECT: GRINDING/SCRAPING NOISE IN PARK AND NEUTRAL (REPLACE DRIVEN SPROCKET THRUST BEARING)

#### MODELS: 1993 CADILLAC ALLANTE 1993-95 CADILLAC ELDORADO AND SEVILLE 1995 CADILLAC CONCOURS

TRANSAXLE APPLICATIONS: 1993-95 HYDRA-MATIC 4T80-E (RPO MH1)

CONDITION: (FIGURE 1) SOME VEHICLES EQUIPPED WITH A HYDRA-MATIC 4T80-E TRANSAXLE BUILT BEFORE AUGUST 4, 1994 (JULIAN DATE 4216) MAY EXHIBIT A GRINDING OR SCRAPING NOISE IN PARK AND NEUTRAL. THIS CONDITION IS NOT HEARD IN DRIVE AND REVERSE WITH BRAKES APPLIED. IT IS MOST PREVALENT ON THE DRIVER'S SIDE, IN AN ENCLOSED AREA SUCH AS A GARAGE, ALLEY OR PARKING LOT.

#### CAUSE:

DRIVEN SPROCKET THRUST BEARING ASSEMBLY.

#### CORRECTION:

REPLACE THE DRIVEN SPROCKET THRUST BEARING (417).

SERVICE PARTS INFORMATION: (FIGURES 2, 3, & 4)

PART NUMBER DESCRIPTION

24203059 BEARING, THRUST DRIVEN SPROCKET (417)

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

REFER TO YOUR GOODWRENCH TRANSMISSION CATALOG FOR THE PROPER MODEL IDENTIFICATION.

#### WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE: LABOR OPERATION: K7506 SPROCKET-DRIVEN REPLACE USE PUBLISHED LABOR OPERATION TIME.

FIGURES: 4 ATTACHMENTS: 0

GENERAL MOTORS BULLETINS ARE INTENDED FOR USE BY PROFESSIONAL TECHNICIANS, NOT A "DO-IT-YOURSELFER." THEY ARE WRITTEN TO INFORM THOSE TECHNICIANS OF CONDITIONS OCCURRING 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 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.

COPYRIGHT 1994. GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.