Colorado 4WD L4-2.9L (2008)
Steering Shaft: All Technical Service Bulletins
Steering - Clunk/Knock Felt In Steering Wheel/Pedals
TECHNICAL
Bulletin No.: 07-02-35-006E
Date: December 02, 2008
Subject:
Clunk or Knock Noise Heard and/or Felt Through Steering Wheel or Brake and Accelerator Pedals (Replace Lower Steering [Intermediate] Shaft)
Models:
2007-2008 Chevrolet Colorado
2007-2008 GMC Canyon
2007-2008 HUMMER H3
Excludes H3 V8s Sold in North America
Includes H3G Vehicles Built PRIOR to Serial Number 422858 (LHD) / 425990 (RHD)
Supercede:
This bulletin is being revised to update warranty information. Please discard Corporate Bulletin Number 07-02-35-006D (Section 02 - Steering).
Condition
Some customers may comment on a clunk or knock noise being heard or felt through the steering wheel and/or brake and accelerator pedals. This issue
may be more prevalent in hotter temperatures.
Cause
This condition may be caused by a slip/stick condition in the lower steering (intermediate) shaft.
Correction
Important:
When replacing the lower intermediate shaft, follow service procedures found in published Service Information (SI). Be sure to ALWAYS:
^
Keep the hub straight when removing/attaching the lower I-shaft to the upper steering column.
^
Pin the steering column using the J 42640 - Steering Column Locking Pin in its straight position prior to removing the lower I-shaft. Keep
the steering column pinned until after the new lower I-shaft is installed.
Failure to perform these steps could result in a mis-alignment of the upper steering column to the lower I-shaft and cause DTC C0710 and "Serv
Stab System" message to occur.
Replace the lower steering (intermediate) shaft. The new i-shaft can be identified by a yellow or green mark as identified in the graphic.
