Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Power Steering Flow And Pressure - Electro-Hydraulic Power Steering (EHPS): Notes
The following procedure is used to test the operation of the power steering system on the vehicle (equipped with EHPS). This test provides the Gallons Per Minute (GPM) or the flow rate of the power steering pump along with the maximum relief pressure. Perform this test any time a power steering system problem is present. This test determines if the power steering pump or power steering gear is not functioning properly. The following pressure and flow test is performed using Power Steering Kit (special tool #6815, Kit, Power Steering), Hose (special tool #6905, Assembly, Hose) from Power Steering Analyzer Adapter Kit (special tool #6893A, Kit, Power Steering), Hose (special tool #6959, Assembly, Hose), and Power Steering Analyzer Adapter.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.