Acura TSX / Honda Accord CL. Manual — part 185
Fig. 7: Inspecting Steering Linkage & Gearbox
PUMP PRESSURE TEST WITH T/N 07406-0010001
Special Tools Required:
z
P/S joint adapter (pump) 07VAK-P8A011A
z
P/S joint adapter plate (pump) 07ZAK-S7CA100
z
P/S joint adapter (hose) 07ZAK-S7CA200
z
P/S pressure gauge 07406-0010001
2004 Acura TSX
2004 STEERING Power Steering System - TSX
Check the fluid pressure as follows to determine whether the trouble is in the pump or gearbox.
1. Check the power steering fluid level (see FLUID REPLACEMENT ).
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).
Fig. 8: Installing The P/S Joint Adapter (Pump) On The Pump Outlet
2004 Acura TSX
2004 STEERING Power Steering System - TSX
3. Connect the P/S joint adapter (hose) to the P/S pressure gauge, then connect the pump outlet hose (A) to
the P/S joint adapter (hose).
4. Install the P/S pressure gauge to the P/S joint adapter (pump).
5. Fully open the shut-off valve (A).
Fig. 9: Fully Open The Shut-Off Valve & The Pressure Control Valve
6. Fully open the pressure control valve (B).
7. Start the engine and let it idle.
8. Turn the steering wheel from lock-to-lock several times to warm the fluid to operating temperature at
158°F (70°C).
2004 Acura TSX
2004 STEERING Power Steering System - TSX
9. Measure steady-state fluid pressure while the engine is idling. If the pump is in good condition, the
pressure should be no more than 1,500 kPa (15 kgf/cm
2
, 214 psi). If the pressure is too high, check the
outlet hose or valve body unit (see Steering System Troubleshooting). 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
1,500 kPa (15 kgf/cm
2
, 214 psi). If the pressure is too high, repair or replace the pump.
10. Lower the engine speed and let it idle. Close the shut-off valve, then close the pressure control valve
gradually until the pressure gauge needle is stable. Read the pressure.
11. 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 specification:
7,850-8,550 kPa (80-87 kgf/cm
2
, 1,140-1,240 psi)
A low reading means pump output is too low for full assist. Repair or replace the pump.
PUMP PRESSURE TEST WITH T/N 07406-001000A
Special Tools Required:
z
P/S joint adapter (pump) 07VAK-P8A011A
z
P/S joint adapter plate (pump) 07ZAK-S7CA100
z
P/S joint adapter (hose) 07ZAK-S7CA200
z
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 (see FLUID REPLACEMENT ).
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).
NOTE:
Do not keep the shut-off valve closed more than 5 seconds or the pump
could be damaged by over-heating.
2004 Acura TSX
2004 STEERING Power Steering System - TSX
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