Flow Rate Test
- Connect Power Steering Analyzer (J-25233-A) into system. Open analyzer valve fully. Run engine until fluid reaches operating temperature. Check fluid level. Add fluid if necessary. Record pressure and flow rate.
- Close valve partially until pressure builds to 700 psi (49.2 kg/cm2 ), and then record flow rate. Subtract flow rate from that measured in step 1). If flow rate drops more than one gallon/minute (3.8L/minute), replace ring, rotor and vanes in pump.
- Increase engine speed to 1500 RPM and read flow rate. Subtract flow rate from that measured in step 1). If difference between flow rates varies more than one gallon/minute (3.8L/minute), remove and clean flow control valve.
- Turn steering wheel from stop to stop. Flow rate should drop to less than one gallon/minute (3.8L/minute) at each stop. If flow rate is within specification, check rack and pinion assembly for leakage.