Power Steering System Leak Inspection
How are power steering leaks diagnosed?
Since most power steering issues will generate the same symptoms, it would be difficult to diagnose only one part, without understanding the condition of the whole system. When symptoms emerge, the power steering fluid is inspected, and topped off, and the condition, and tension of the power steering pump belt is noted. The system may need to be bled of air prior to diagnosis. Any leaks will become very obvious at that time, and mechanical failure of the power steering pump will be evident from noise, or a pressure gauge inserted into the power steering line. At that time, if no other issues are found, the steering rack or steering gearbox will be suspected of failure. Any dust boots and seals will be inspected for leaks. The rack and pinion gear set will be inspected for sounds typical of mechanical failure. This systematic approach will lead a technician to a diagnosis.
What will be the outcome of the power steering leak diagnosis?
Power steering leaks are corrected by replacing or rebuilding the leaking component. In some more fortunate circumstances, the power steering lines may simply become loose, and will be properly tightened to prevent leaking. In most other situations, the power steering fluid is drained, the defective component is removed, and a rebuilt or new component is installed. Once the system is reassembled, the power steering system is filled with power steering fluid, according to manufacturer specification. Finally, the system is bled of air, and the vehicle will be tested for leaks and other symptoms.
RepairPal Recommendations for power steering leaks
We recommend against any product that claims to stop leaks in the power steering system. These products contain sealants that will become contaminants as they cure in the power steering fluid and build up inside components that are only designed for power steering fluid. This can lead to failing power steering pumps and steering gears, and even cause additional leaks.