How to replace the power steering pump on a 4.2L engine on 2006 Buick Rainier?

In order to change the power steering pump to a 4.2L engine, one has to take out the air cleaner assembly, drive belt and put a drain pan underneath the car. Unscrew the hoses of the power steering and the harness of the wiring, unscrew the pump and the pulley. Install pump and hose again with due clearance and leakage checking.

OEM 2006 Buick Rainier Power Steering Pump

Power Steering Pump Unit

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2006 Buick Rainier Power Steering Pump Part Number: 19418527
Product Specifications
- Other Name: Pump Kit, Power Steering; Pump, Power Steering
- Replaces: 26112227
- Item Weight: 6.10 Pounds
- Item Dimensions: 8.0 x 5.7 x 5.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 19418527
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 Buick Rainier Submodels:
- CXL, CXL Plus | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS

2006 Buick Rainier Power Steering Pump

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2006 Buick Rainier Power Steering Pump Parts and Q&A

Q: How to replace the power steering pump on a 4.2L engine on 2006 Buick Rainier?
A: In order to change the power steering pump to a 4.2L engine, one has to take out the air cleaner assembly, drive belt and put a drain pan underneath the car. Unscrew the hoses of the power steering and the harness of the wiring, unscrew the pump and the pulley. Install pump and hose again with due clearance and leakage checking.