Pump Pressure Test With T/N - Honda 2004 Odyssey Service Manual

Pump Pressure Test with T/N 07406-0010001

Special Tools Required
• P/S joint adapter (pump) 07VAK-P8A011A
• P/S joint adapter plate (pump) 07VAK-P8A012B
• P/S joint adapter (hose) 07RAK-S040122
• P/S pressure gauge 07406-0010001
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 page 17-
14) and pump belt tension (see page 17-12).
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. Wipe
off any spilled fluid at once. Install the P/S joint
adapter (pump) on the pump outlet (B) with the P/S
joint outlet plate.
A
6 x 1.0 mm
11 N·m
(1.1 kgf·m, 8 lbf·ft)
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).
07RAK-S040122
6 x 1.0 mm
11 N·m
(1.1 kgf·m, 8 lbf·ft)
07406-0010001
07VAK-P8A011A
07VAK-P8A012B
B
5. Fully open the shut-off valve (A).
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).
9. Measure steady-state fluid pressure while the
engine is idling. If the pump is in good condition,
the gauge should read less than 1,500 kPa
2
(15 kgf/cm , 213 psi).
If it reads high, check for:
• Clogged of deformed feed of return line between
the pump and gearbox.
• Clogged valve body unit.
10. Close the shut-off valve, then close the pressure
control valve gradually until the pressure gauge
needle is stable. Read the pressure.
Do not keep the pressure control valve
closed more than 5 seconds or the pump
could be damaged by over-heating.
11. Immediately open the shut-off valve fully.
If the pump is in good condition, the gauge should
read at least 8,300 8,800 kPa (85 90 kgf/cm ,
1,210 1,280 psi). A low reading means pump
output is too low for full assist. Repair or replace
the pump.
A
B
2
17-9