TSX L4-2.4L (2005)
Power Steering Pump: Testing and Inspection
Pump Pressure Test With T/N 07406-001000A
Pump Pressure Test with T/N 07406-001000A
Special Tools Required
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P/S joint adapter (pump) 07VAK-P8A011A
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P/S joint adapter plate (pump) 07ZAK-S7CA100
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P/S joint adapter (hose) 07ZAK-S7CA200
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P/S pressure gauge 07406-001000A
Check the fluid pressure as follows to determine whether the trouble is in the pump or gearbox.
1. Check the power steering fluid level.
2. Disconnect the pump outlet hose (A) from the pump outlet with care so as not to spill the power steering fluid on the frame and other parts. Install
the P/S joint adapter (pump) on the pump outlet (B).
3. Connect the P/S joint adapter (hose) to the P/S pressure gauge, then connect the pump outlet hose to the P/S joint adapter (hose).
4. Install the P/S pressure gauge to the P/S joint adapter (pump).
5. Open the pressure control valve (A) fully.
6. Start the engine and let it idle.
7. Turn the steering wheel from lock-to-lock several times to warm the fluid to operating temperature at 158°F (70°C).
8. Measure steady-state fluid pressure while the engine is idling. If the pump is in good condition, the pressure should be no more than 1,470 kPa
(15.0 kgf/cm2, 213 psi). If the pressure is too high, check the outlet hose or valve body unit. Raise the engine speed to 3,000 rpm, and measure
the fluid pressure. If the pump is in good condition, the pressure should be at least 1,470 kPa (15.0 kgf/cm2, 213 psi). If the pressure is too high,
repair or replace the pump.
9. Lower the engine speed and let it idle. Close the pressure control valve gradually until the pressure gauge needle is stable. Read the pressure.
NOTICE: Do not keep the pressure control valve closed more than 5 seconds or the pump could be damaged by over-heating.
10. Immediately open the pressure control valve fully. If the pump is in good condition and the valve is closed, the gauge should read at least this
