PI0921

File in Section:
Bulletin No.:
Service Bulletin
Date:
PI0921
March, 2013
PRELIMINARY INFORMATION
Subject:
Noise from Transfer Case While in Four Wheel Drive
Models:
2011-2013 Chevrolet Silverado
2011-2013 GMC Sierra Models
Equipped with Manual Shift Transfer Case (RPO NQG)
Condition/Concern
Some customers may comment on excessive noise coming from the transfer case.
This condition may be caused by noise from the transfer case being transmitted through the transfer case shift rod
into the vehicle interior.
Recommendation/Instructions
To diagnose this concern, shift the transfer case into four wheel drive and disconnect the transfer case shift linkage.
If the noise is reduced, replace the transfer case shift rod.
Parts Information
Part Number
Description
22847405
Rod, Transfer Case Control (light duty)
22847406
Rod, Transfer Case Control (heavy duty)
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation
Description
Labor Time
K9567*
Diagnose Noise for Transfer Case Control Rod
0.4 hr
Add
Replace Transfer Case Control Rod
0.4 hr
*This is a unique labor operation for bulletin use only. It will not be published in the Labor Time Guide.