Procedure

NOTE: Before performing the pump flow and pressure test, complete the Inspection and Verification.





1. Disconnect the power steering pressure hose between the power steering pump and the steering column bracket clip allowing the fluid in the hose to drain.
2. Attach the power steering analyzer and fittings in line of the pressure hose.
3. Attach the digital tachometer to monitor rpm.





4. Place the (A) Dial Thermometer in the power steering pump reservoir.
5. Fill the system.

CAUTION: Make sure the valve on the power steering system analyzer is open, allowing the system to function normally.

6. With the engine running, raise the fluid temperature to 50-60°C (122-140°F) by turning the steering wheel fully left and fully right several times.

CAUTION: Do not hold the steering wheel against the stops for an extended period of time. Damage to the pump could occur.

7. Measure the power steering pump output flow by partially closing the (B) gauge valve and increasing the engine speed to 1000-1500 rpm.

CAUTION: Do not leave the valve on the power steering analyzer closed for more than 5 seconds.

8. If the output flow drops below 1.9 liters per minute (0.5 gpm), replace the pump.
9. Measure the power steering pump output pressure by closing the (B) gauge valve and increasing the engine speed to 1000-1500 rpm.
10. If the pressure recorded is less than 7.7 kPa (1 120 psi), replace the pump.
11. If the pressure recorded is greater than 8.6 kPa (1250 psi), inspect for kinked hose(s) and repair as necessary.
12. If the system pressure is less than 8.6 kPa (1250 psi), and the pump output flow is greater than 1.9 liters per minute (0.5 gpm), excessive internal leakage is occurring. Remove and replace the steering gear.