| Subject: | Revised Power Steering Gear Replacement | 
| Models: | 2004-2006 Chevrolet Colorado | 
 
This bulletin is being issued to revise the Power Steering Gear Replacement procedure in the Power Steering System sub-section of the Service Manual. Please replace the current information in the Service Manual with the following information.
The following information has been updated within SI. If you are using a paper version of this Service Manual, please make a reference to this bulletin on the affected page.
Power Steering Gear Replacement (Colorado/Canyon)
Removal Procedure
- Raise and support the vehicle. Refer to  Lifting and Jacking the Vehicle in General Information.
 
- Remove both of the front tire and wheel assemblies. Refer to  Tire and Wheel Removal and Installation in Tires and Wheels.
 
- Remove the engine protection shield if equipped. Refer to  Engine Protection Shield Replacement in Frame and Underbody.
 
- Disconnect the outer tie rod end from the steering knuckle. Refer to  Rack and Pinion Outer Tie Rod End Replacement.
 
- Place a drain pan to catch the fluid.
 
- Disconnect the power steering hose assembly from the steering gear. Refer to  Power Steering Gear Inlet and Outlet Hose Replacement.
 
- Remove the coupler clamp bolt from the intermediate shaft. Refer to  Intermediate Steering Shaft Replacement - Lower in Steering Wheel and Column.
 
- Separate the intermediate shaft from the steering gear.
 
- Remove the steering gear vertical mounting nuts, the washers and the bolts.
 
- On 4WD vehicles, support the front carrier and remove the drivers side mounting bracket-to-frame bolts.
 
- Move LH side of the front carrier rearward enough to remove the gear.
 
- Remove the steering gear horizontal mounting nuts, the washers and the bolts.
 
- Remove the steering gear RH isolator bracket.
 
- Remove the crossmember, 2WD ONLY. Refer to  Crossmember Replacement in Frame and Underbody.
 
- Remove the steering gear from the vehicle.
 
Installation Procedure
- Install the steering gear into the vehicle.
 
- Install the steering gear RH isolator bracket.
 
- Loose install the steering gear horizontal mounting nuts, the washers and the bolts.
 
Notice: Refer to Fastener Notice in Cautions and Notices.
- On 4WD vehicles, install the drivers side carrier mounting bracket-to-frame bolts.
 
Tighten
Tighten the bolts to 152 N·m (112 lb ft).
- Remove the front carrier support.
 
- Install the crossmember, 2WD ONLY. Refer to  Crossmember Replacement in Frame and Underbody.
 
- Loose install the steering gear vertical mounting nuts, the washers and the bolts.
 
Tighten
|     •  | Tighten the long bolts to 130 N·m (96 lb ft). | 
 
|     •  | Tighten the isolator clamp bolts to 100 N·m (74 lb ft). | 
 
- Install the intermediate shaft to the steering gear.
 
- Install the coupler clamp bolt to the intermediate shaft. Refer to  Intermediate Steering Shaft Replacement - Lower in Steering Wheel and Column.
 
- Connect the power steering hose assembly to the steering gear. Refer to  Power Steering Gear Inlet and Outlet Hose Replacement.
 
- Install the engine protection shield, if equipped. Refer to  Engine Protection Shield Replacement in Frame and Underbody.
 
- Install the outer tie rod end to the steering knuckle. Refer to  Rack and Pinion Outer Tie Rod End Replacement.
 
- Install both of the front tire and wheel assemblies. Refer to  Tire and Wheel Removal and Installation in Tires and Wheels.
 
- Lower the vehicle.
 
- Bleed the power steering system. Refer to  Bleeding the Power Steering System.
 
- Check the wheel alignment. Refer to  Measuring Wheel Alignment in Wheel Alignment.
 
Power Steering Gear Replacement (H3)
Removal Procedure
- Raise and support the vehicle. Refer to  Lifting and Jacking the Vehicle.
 
- Remove both of the front tire and wheel assemblies. Refer to  Tire and Wheel Removal and Installation.
 
- Remove the engine shield. Refer to  Engine Shield Replacement.
 
- Disconnect the outer tie rod end from the steering knuckle. Refer to  Rack and Pinion Outer Tie Rod End Replacement.
 
- Place a drain pan to catch the fluid.
 
- Disconnect the power steering hose assembly from the steering gear. Refer to  Power Steering Gear Inlet and Outlet Hose Replacement.
 
- Remove the coupler clamp bolt from the intermediate shaft. Refer to  Intermediate Steering Shaft Replacement - Lower.
 
- Separate the intermediate shaft from the steering gear.
 
- Remove the steering gear vertical mounting nuts, the washers and the bolts.
 
- Remove the steering gear horizontal mounting nuts, the washers and the bolts.
 
- Remove the steering gear RH isolator bracket.
 
- Remove the steering gear from the vehicle.
 
Installation Procedure
- Install the steering gear into the vehicle.
 
- Install the steering gear RH isolator bracket.
 
- Loose install the steering gear horizontal mounting nuts, the washers and the bolts.
 
Notice: Refer to Fastener Notice.
- Loose install the steering gear vertical mounting nuts, the washers and the bolts.
 
Tighten
|     •  | Tighten the long bolts to 130 N·m (96 lb ft). | 
 
|     •  | Tighten the isolator clamp bolts to 100 N·m (74 lb ft). | 
 
- Install the intermediate shaft to the steering gear.
 
- Install the coupler clamp bolt to the intermediate shaft. Refer to  Intermediate Steering Shaft Replacement - Lower.
 
- Connect the power steering hose assembly to the steering gear. Refer to  Power Steering Gear Inlet and Outlet Hose Replacement.
 
- Install the engine shield. Refer to  Engine Shield Replacement.
 
- Install the outer tie rod end to the steering knuckle. Refer to  Rack and Pinion Outer Tie Rod End Replacement.
 
- Install both of the front tire and wheel assemblies. Refer to  Tire and Wheel Removal and Installation.
 
- Lower the vehicle.
 
- Bleed the power steering system. Refer to  Bleeding the Power Steering System.
 
- Check the wheel alignment. Refer to  Measuring Wheel Alignment.