| Subject: | Power Steering, Steering Wheel Shudder/Vibration During Low Speed Parking Maneuvers (Replace Power Steering Assembly Hose) | 
| Models: | 2007 Cadillac Escalade, Escalade ESV, Escalade EXT | 
| 2007 Chevrolet Avalanche, Silverado, Suburban, Tahoe | 
| 2007 GMC Sierra, Yukon, Yukon XL, Yukon Denali, Yukon Denali XL | 
| Built Prior To May 30, 2007 | 
| Excluding Pickup Models with 4.3L V6 Engine (VIN X - RPO LU3) | 
This bulletin in being revised to update the Warranty Information. Please discard Corporate Bulletin Number 08-02-32-001 (Section 02 -- Steering).
Some customers may comment on a shudder or vibration in the steering wheel during low speed parking lot maneuvers.
This vibration/shudder may be caused by unstable fluid flow characteristics inside the power steering hose assembly.
Important: DO NOT replace the power steering pump or gear.
Technicians are to replace the power steering inlet hose assembly with P/N 25858603.
Refer to SI for power steering inlet hose removal and installation procedures.
Part Number  | Description  | Qty  | 
|---|---|---|
25858603  | Hose, Power Steering Gear Inlet  | 1  | 
For vehicles repaired under warranty, use:
Labor Operation  | Description  | Labor Time  | 
|---|---|---|
E8622  | Hoses, Power Steering Hydraulic - Pressure - Replace  | Use Published Labor Operation Time  |