FAQs Why does the pump make a hoarse sound? 1. Is the booster oil missing? If it is below the offline level, add booster oil (OEM approved oil) 2. The air is not exhausted, just exhaust the air again 3. Whether the belt of the booster pump is loose, try adjusting the belt 4. Make sure that the old liquid is completely washed away from the car 5. Check the hose, if it is found to be damaged, worn and aging, it needs to be replaced Installation and precautions: 1. Prepare the right oil for the pump, remember that rehydration is not a good choice 2. Make sure that the old liquid is completely washed away from the car, otherwise, the new power steering pump will make noise 3. To avoid noise, you also need to exhaust air from the entire system 4. Check the hose, if it is found to be damaged, worn and aging, it needs to be replaced. If you fail to perform this step, the new power steering pump will also produce noise, because these hoses will vibrate under high pressure and come into contact with the body, frame or engine oil pan Note: Professional installation is a good choice