This information applies to the 2006-07 Rainier, and 2006-08 TrailBlazer, Envoy and 9-7X.
There may be a squeak/squeal noise from the steering column upon initial rotation of the steering wheel, either with the engine running or turned off. The noise is present if the intermediate shaft is disconnected for testing purposes. The source of this noise may be an interference contact between the 48 way harness connector bracket and the SWPS (Steering Wheel Position Sensor) and harness connector housing.
1. Remove the 48 way harness connector bracket (fig. 15).

2. Remove approximately 2/3 of the center rib material to make it flush with the bracket
(fig. 16).

A Bracket center rib
B Rib removed
TIP: DO NOT remove the entire rib.
3. Reinstall bracket and check for clearance between the SWPS connector/sensor and the 48 way connector bracket (fig. 17).

A Check for clearance
4. If additional clearance is needed, turn the bracket over and remove approximately 1 mm of additional bracket material (fig. 18).

A Remove additional 1 mm
Reassemble and check for clearance as described in step 3. If clearance was adequate,
no further modification to the bracket is necessary. Reassemble the vehicle and test drive
to verify this noise has been eliminated.
- Thanks to Dino Poulos

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