Flow Rate Test
- Connect Power Steering Analyzer (J-25323-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 (3.8L) per 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 (3.8L) per minute, remove and clean flow control valve.
- Turn steering wheel from stop to stop. Flow rate should drop to less than one gallon (3.8L) per minute at each stop. If flow rate is within specification, check rack and pinion assembly for leakage.