Century V6-3100 3.1L VIN M SFI (1998)
Power Steering Line/Hose: Customer Interest
P/S - Shudder or Vibration at Low Speed
File In Section: 02 - Steering
Bulletin No.: 99-02-32-003
Date: June, 1999
Subject:
Steering Shudder or Vibration at Low Speed
(Replace Power Steering Lines)
Models:
1997-1999 Buick Century Custom, Limited
1997-1999 Pontiac Grand Prix SE with 3.1L V-6 Engine (VIN M - RPO L82)
Condition
Some customers may comment on a shudder/vibration condition while steering under low speed or stationary conditions, such as parking maneuvers. A
low frequency vibration may be felt in the steering wheel and body of the vehicle. In addition, this vibration may be audible in the passenger
compartment. This vibration will only occur while the steering wheel is being rotated.
Cause
This shudder may be caused by a mechanical vibration of the steering rack, tie rods and tires which is reinforced by hydraulic pressure in the power
steering system.
Correction
Replace power steering pressure and return lines with revised "tuned" hoses.
Important:
^
This bulletin is intended to correct a possible power steering shudder condition with 3.1 L V6 (L82) equipped vehicles only. Do not use this
bulletin to try to correct any steering conditions on 3.8L V6 (L36) equipped vehicles.
^
The Century Limited is equipped with a Magnasteer(R) (NV7) variable effort steering gear. The line attachment points at the steering gear are
relocated from the standard steering gear. Be sure to replace the power steering pressure hose with the proper part number for each application.
The new return lines are interchangeable between standard and Magnasteer(R) applications.
Refer to the proper graphic for the vehicle being repaired.
Parts Information
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor
Labor
Operation
Description
Time
E8622
Line, Power Steering -
1.0 hrs
Pressure
E8626
Line, Power Steering - Return
0.6 hr
