G6 L4-2.4L (2007)
Power Steering Bleeding: By Symptom
Technical Service Bulletin # 08-02-32-004B
Date: 081006
Steering - Power Steering Whine/Growl Noises
TECHNICAL
Bulletin No.: 08-02-32-004B
Date: October 06, 2008
Subject:
EI08118 - Power Steering Whine/Growl Noise (Bleed Power Steering System)
Models:
2006-2009 Chevrolet Impala, Malibu
2006-2009 Pontiac G6
2007-2009 Saturn AURA
Supercede:
This bulletin is being revised to end the need for engineering information and to provide field fix information. Please discard Corporate Bulletin Number
08-02-32-004A (Section 02 - Steering).
Condition
Some customers may comment on a whine or growl noise coming from the power steering.
Correction
DO NOT REPLACE THE POWER STEERING PUMP OR RACK/GEAR.
Fill and bleed the power steering system using the following procedure:
Power Steering System Bleed Procedure Using J 42485 (MityVac) (or equivalent)
Important:
Maintain the fluid level throughout the bleed procedure.
1.
Fill the fluid reservoir to the FULL COLD level. Leave the cap off.
2.
Raise the front wheel off the ground.
3.
Attach the J 43485 (Adapter) to the J 23738 (Mityvac), or equivalent. Place the J 43485 on/in the pump reservoir filler neck (refer to graphic).
Apply a vacuum of 20 in Hg MAXIMUM.
Note:
If the J 43485 (adapter) is not available, an equivalent can be made using a rubber seal/stopper and brass fitting.
Important:
An assistant is needed for the next step.
4.
Apply vacuum while turning the steering wheel lock to lock. Maintain 20 in Hg while turning. Using a clear line will allow you to see bubbles
evacuating system. Stop when no more bubbles are seen.
5.
Wait five minutes. Typically vacuum drop is 2-3 in Hg. Verify the fluid level. If the fluid level is low, fill to the full line.
