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After you've changed the power steering fluid in your Chevy Silverado, the final step is to remove any trapped air from the system by bleeding it out. This is crucial because air can hinder the hydraulic system's functioning. To bleed the power steering pump, simply open the bleed valve located on the side of the pump, placing a bucket underneath to catch any fluid. Start the engine, then turn the steering wheel fully to the left and right multiple times to circulate the fluid through the pump and lines. After doing this a few times, close the bleed valve and check the fluid level, topping it up if necessary.
In order to remove air from the power steering pump of a Chevy Silverado, you should gently open the bleed valve. Turn the steering wheel from one lock to the other multiple times. Once all air is gone, make sure to refill the power steering fluid. Turn the steering wheel a few more times and recheck the fluid level before hitting the road.
Flushing the power steering in a semi truck is comparable to doing it in a regular car.