A/T - Grinding/Scraping Noise in Park & Neutral
File In Section: 7 - TransmissionBulletin No.: 47-71-35
Date: November, 1994
Subject:
Grinding/Scraping Noise in Park and Neutral (Replace Driven Sprocket Thrust
Models:
1993 Cadillac Allante
1993-95 Cadillac Eldorado, 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).
Parts Information (Figures 2, 3, and 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 Labor Time
K7506 Sprocket - Driven Use published labor
Replace operation time.