You just finished replacing a power steering pump on a customer vehicle. You fire up the engine and to your surprise, the pump is still making noise. Now it's easy to kick yourself at this point and think, where did I go wrong? I would urge you to take a step back and reevaluate things. There are several questions which you should ask yourself in this scenario. Did you flush the system? Did you use the correct type and quality of fluid, and did you bleed the system after the repair? Let's start with the first one. Flushing the system. Anytime you've replaced a major power steering component such as the steering rack or the pump, you should at least be evaluating the condition of the fluid and potentially flushing the entire system. This is especially important in the case of say, an internal failure of the pump. This could cause metal shavings to be introduced into the fluid circuit, potentially causing damage to other components later on down the road.