Transfer Case Module - Bump/Noise on Acceleration
File In Section: 04 - Driveline AxleBulletin No.: 02-04-21-001
Date: February, 2002
TECHNICAL
Subject:
Bump or Noise when Accelerating from a Stop, Surge in 1st Gear
(Reprogram ATCM)
Models:
2002 Oldsmobile Bravada
with All-Wheel Drive and 4.2L Engine (VIN S - RPO LL8)
Built Prior to VIN Breakpoint 22239887
Condition
Some customers may comment on a bump or noise when accelerating from a stop. Also, customers may comment on a surge condition under moderate to hard acceleration while the vehicle is in first gear.
Correction
Reprogram the ATC Active Transfer Case Module with the appropriate calibration from the table below.
Parts Information
The calibration listed is an electronic calibration and is NOT available from GMSPO. Calibrations will be available from Techline starting September 2001, on the TIS 2000 version TIS 10/2001 data update or later.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer