Honda 2004 Odyssey Service Manual page 1123

Power Steering
Symptom Troubleshooting Index
Find the symptom in the chart below, and do the related procedures in the order listed until you find the cause.
Symptom
Hard Steering
Assist (excessively
light steering at high
speed)
Shock or vibration
when the steering
wheel is turned to
full lock
Steering wheel will
not return smoothly
Uneven or rough
steering
Steering wheel kicks
back during wide
turns
Humming noise from
the power steering
system
17-4
Troubleshoot the system (see page 17-6).
Check the rack guide adjustment (see page 17-29).
1. Check the rack guide adjustment (see page 17-29).
2. Check the power steering pump belt for slippage and adjust as
necessary (see page 17-12).
3. Replace the steering gearbox (see page 17-30).
4. Check the power steering fluid pressure with T/N 07406-0010001
(see page 17-9) or with T/N 074060-001000A (see page 17-10).
1. Check cylinder lines A and B for deformation.
2. Check wheel alignment (see page 18-5).
3. Replace the steering gearbox (see page 17-30).
1. Check the rack guide adjustment (see page 17-29).
2. Check power steering pump belt adjustment (see page 17-12).
3. Check for low or erratic engine idle speed (see page 11-201).
4. Check for air in the power steering system due to low fluid level or
an air leak at the pump inlet hose.
5. Check for low fluid level in the power steering reservoir due to
possible leaks in system.
6. Replace the steering gearbox (see page 17-30).
1. Check power steering pump belt adjustment (see page 17-12).
2. Check the power steering pump fluid pressure with T/N 07406-
0010001 (see page 17-9) or with T/N 07406-001000A
(see page 17-10).
1. Check when the noise occurs:
If the noise is heard 2 3 minutes after starting the engine in
•
cold weather, this is normal.
• If the noise is heard when the steering wheel is turned with the
vehicle stopped, this is normal due to the fluid pulsation.
2. Check if the high-pressure hose is touching the sub-frame or body.
3. Check for air bubbles in the power steering fluid and leak on inlet
side of pump.
4. Check for particle contamination of fluid and restricted filter in the
reservoir.
Procedure(s) Also check for:
• Modified
suspension
• Tire sizes, tire
varieties, and
air pressure
• Front wheel
alignment (see
page 18-5).
• Tire Pressure
Pump pressure