2009 Chevrolet Tahoe Power Steering Reservoir

You need to remove the power steering pump assembly from the vehicle, the power steering fluid reservoir studs from the power steering pump assembly, the power steering pump fitting, the power steering pump fitting seal and the power steering pump flow control valve, and the power steering pump flow control valve spring from the power steering pump assembly, separate the power steering fluid reservoir and the power steering pump, remove the power steering pump seals, remove and clean the power steering fluid reservoir magnet and inspect the welch plug in the power steering pump.

You need to clean and install the power steering fluid reservoir magnet, install the power steering pump seals to the power steering pump, connect the power steering fluid reservoir and the power steering pump, install the power steering pump flow control valve spring, and the power steering pump flow control valve to the power steering pump assembly and install the power steering pump fitting seal, the power steering pump fitting to the power steering pump assembly, the power steering fluid reservoir studs to the power steering pump assembly and the power steering pump assembly to the vehicle.

The recommended torque is 75 Nm(55 lb-ft).

You need to fill the pump reservoir with fluid to the minimum system level, FULL COLD level, or middle of hash mark on the cap stick fluid level indicator. If equipped with hydro-boost, fully charge the hydro-boost accumulator using the following procedure: start the engine, firmly apply the brake pedal 10-15 times and turn the engine OFF. Then you can raise the vehicle until the front wheels are off the ground, with the key on the engine OFF, turn the steering wheel from stop to stop 12 times, verify the power steering fluid level per operating specification, start the engine, rotate steering wheel from left to right, check for sign of cavitation or fluid aeration (pump noise/whining) and verify the fluid level and repeat the bleed procedure if necessary.

The recommended torque is 58 Nm(44 lb-ft).