A/T - Buzz Type Noise On Deceleration
File In Section: 07 - Transmission/TransaxleBulletin No.: 99-O7-3O-008
Date: May, 1999
TECHNICAL
Subject:
Buzz Type Noise On Decel (Reprogram PCM)
Models:
1998 Oldsmobile Intrigue
with 3.8 L V6 Engine (VIN K - RPO L36)
and Hydra-Matic 4T65-E Transaxle (RPO M15)
Condition
Some owners may comment about a buzz type noise on decel at approximately 17-21 mph (27-34 kph) during the coast-down shift.
Cause
Condition may be due to high line pressure on decel causing pressure regulator valve instability.
Correction
Check cooler line routing for ground-out against body/frame. If no ground-out condition exists, reprogram the Powertrain Control Module with the appropriate calibration listed below.
Parts information
The calibrations listed are electronic calibrations and are NOT available from GMSPO. Calibrations will be available from Techline starting February 1999, on the 1999 Disk 5 CD ROM.
Warranty Information
For vehicles repaired under warranty, use:
Labor
Operation Description Labor Time
Prom - Use Published
J6355 Reprogramming - Labor
On Oar Operation Time