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2010 Honda Civic Service Repair Manual .pdf



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2008 Honda Civic EX
2006-08 STEERING Hydraulic Power Steering Components - Civic (All Except Hybrid)

2006-08 STEERING
Hydraulic Power Steering Components - Civic (All Except Hybrid)

COMPONENT LOCATION INDEX

Fig. 1: Identifying Hydraulic Power Steering Components Location
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 TROUBLESHOOTING INDEX
Symptom
Procedure(s)

Also check for


Modified

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9:36:39 AM

Page 1

© 2005 Mitchell Repair Information Company, LLC.

2008 Honda Civic EX
2006-08 STEERING Hydraulic Power Steering Components - Civic (All Except Hybrid)

suspension
Damaged
Troubleshoot the system (see Symptom
suspension
Hard steering
Troubleshooting ).
Tire sizes, tire
varieties, and
air pressure
Assist
Front wheel
(excessively light Check the rack guide adjustment (see
alignment (see
steering at high RACK GUIDE ADJUSTMENT ).
WHEEL
speed)
ALIGNMENT )
1. Check the rack guide adjustment
(see RACK GUIDE
ADJUSTMENT ).
2. Check the drive belt for slippage
(see DRIVE BELT
INSPECTION ).
Shock or vibration
when the steering 3. Check the power steering pump
fluid pressure with T/N 07406wheel is turned to
0010001 (see PUMP PRESSURE
full lock
TEST WITH T/N 074060010001 ) or T/N 07406-001000A
(see PUMP PRESSURE TEST
WITH T/N 07406-001000A ).
4. Overhaul the steering gearbox (see
step 2 ).
1. Check cylinder lines for
deformation.
Steering wheel
2. Check the ball joints for binding.
will not return
3. Check wheel alignment (see
smoothly
WHEEL ALIGNMENT ).
4. Overhaul the steering gearbox (see
step 2 ).
1. Check the rack guide adjustment
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© 2005 Mitchell Repair Information Company, LLC.

2008 Honda Civic EX
2006-08 STEERING Hydraulic Power Steering Components - Civic (All Except Hybrid)

2.
3.

Uneven or rough
steering

4.

5.

6.
1.
Steering wheel
kicks back during
wide turns

2.

(see RACK GUIDE
ADJUSTMENT ).
Check the drive belt (see DRIVE
BELT INSPECTION ).
Check for low or erratic engine idle
speed (see IDLE SPEED
INSPECTION ).
Check for air in the power steering
system due to air entering inlet side
of pump.
Check for low fluid level in the
power steering reservoir due to
possible leaks in system (see
FLUID REPLACEMENT ).
Overhaul the steering gearbox (see
step 2 ).
Check the drive belt (see DRIVE
BELT INSPECTION ).
Check the power steering pump
fluid pressure with T/N 074060010001 (see PUMP PRESSURE
TEST WITH T/N 074060010001 ) or T/N 07406-001000A
(see PUMP PRESSURE TEST
WITH T/N 07406-001000A ).

1. Check when the noise occurs:
If the noise is heard up to 2-3
minutes after starting the
engine in cold weather, this is
normal.
If the noise is heard when the
wheel is turned with the
vehicle stopped, this is normal
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© 2005 Mitchell Repair Information Company, LLC.

2008 Honda Civic EX
2006-08 STEERING Hydraulic Power Steering Components - Civic (All Except Hybrid)

2.
3.
Humming noise
from the power
steering system

4.

5.

1.

2.

Power steering
rack rattle or
chattering

3.

4.



due to the fluid pulsation.
Check for the high-pressure hose
touching the subframe or body.
Check for automatic transmission
converter noise (A/T).
Check for air bubbles in the power Pump pressure
steering fluid, leak on inlet side of
pump.
Check for particle contamination of
fluid and restricted filter in the
reservoir.
Check for loose steering
components (tie-rod and ball
joints). Tighten or replace as
necessary.
Check the steering column shaft for
wobbling. If the steering column
wobbles, replace the steering
column assembly (see STEERING
COLUMN REMOVAL AND
INSTALLATION ).
Check the rack guide adjustment
(see RACK GUIDE
ADJUSTMENT ).
Check the power steering pump
pulley:
If the pulley is loose, tighten it
(see step 46 ).
If the pump shaft is loose,
replace the pump (see PUMP
REPLACEMENT ).
Check the fluid level. If low, fill the
reservoir to the proper level and

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© 2005 Mitchell Repair Information Company, LLC.

2008 Honda Civic EX
2006-08 STEERING Hydraulic Power Steering Components - Civic (All Except Hybrid)



Hissing from the
power steering
system/foaming
fluid







Noise from the
power steering
pump


check for leaks (see FLUID
LEAKAGE INSPECTION ).
Check the reservoir for leaks.
Check for crushed inlet hose or
loose hose clamp allowing air into Air in the P/S fluid
the suction side of the system (see
FLUID LEAKAGE
INSPECTION ).
Check the power steering pump
shaft oil seal for leaks.
Compare the pump noise at normal
operating temperature to another
like vehicle (pump noise for 2-3
P/S pump
minutes after starting the engine in
pressure
cold weather is normal).
Air in the P/S
Remove and inspect the pump for
fluid
wear and damage (see PUMP
REPLACEMENT ).

Squeaking from
Check the drive belt (see DRIVE BELT
the power steering
INSPECTION ).
pump


Fluid leaks from
the steering
gearbox





Fluid leaks from the top of the
valve body unit. Overhaul the valve
body unit (see step 19 on page 1751).
Fluid leaks from the driver's side
boot. Replace the valve oil seal on
the pinion shaft. Replace the
cylinder end seal on the gearbox
side.
Fluid leaks from the passenger's
side boot. Replace the cylinder end
seal on the cylinder side.

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Page 5

© 2005 Mitchell Repair Information Company, LLC.

2008 Honda Civic EX
2006-08 STEERING Hydraulic Power Steering Components - Civic (All Except Hybrid)









Fluid leaks from
the power steering
line




Fluid leaks from
the power steering
pump



Fluid leaks from pinion shaft near
the lower steering joint bolt.
Overhaul the valve body unit (see
step 19 on page 17-51).
Fluid leaks from the steering
damping valve covers on the valve
body unit. Replace the valve
housing.
Fluid leaks from the cylinder line
connections (flare nuts). Tighten
the connection and retest (see
POWER STEERING HOSE,
LINE, AND PRESSURE
SWITCH REPLACEMENT ).
Fluid leaks from a damaged
cylinder lines. Replace the cylinder
line (see POWER STEERING
HOSE, LINE, AND PRESSURE
SWITCH REPLACEMENT ).
Fluid leaks from the pump outlet
hose or return line fitting on the
valve body unit (flare nuts). Tighten
the fitting and retest. If it still leaks,
replace the hose, the line, or valve
body unit as necessary.
Fluid leaks from the front oil seal.
Replace the front oil seal.
Fluid leaks from the power steering
pump housing. Replace the leaking
O-rings or seals (see FLUID
LEAKAGE INSPECTION ), and
if necessary replace the power
steering pump (see PUMP
REPLACEMENT ).

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Page 6

© 2005 Mitchell Repair Information Company, LLC.

2008 Honda Civic EX
2006-08 STEERING Hydraulic Power Steering Components - Civic (All Except Hybrid)



Fluid leaks from
the power steering
reservoir


Fluid leaks from
the power steering
pump outlet hose
(high-pressure)





Fluid leaks from around the
reservoir cap because fluid level is
too high. Drain the reservoir to the
proper level. If the fluid is aerated
check for an air leak on the inlet
side of pump.
Fluid leaks from reservoir. Check
for reservoir for cracks and replace
as necessary.
Check the fitting for loose bolts. If
the bolts are tight, replace the
fitting O-ring.
Fluid leaks at the swagged joint.
Replace the pump outlet hose.

Fluid leaks from
Check the hose for damage,
the power steering
deterioration, or improper assembly.
pump inlet hose
Replace or repair as necessary.
(low-pressure)
SYMPTOM TROUBLESHOOTING
HARD STEERING

1. Check the power assist (see STEERING WHEEL ROTATIONAL PLAY
CHECK ).
Is the initial turning load more than 34 N (3.5 kgf, 7.7 lbf)?
YES -Go to step 2.
NO -Power assist is OK.
2. Connect the P/S joint adapter (pump), P/S joint adapter (hose), and P/S
pressure gauge T/N 07406-0010001 (see PUMP PRESSURE TEST WITH
T/N 07406-0010001 ), or T/N 07406-001000A (see PUMP PRESSURE
TEST WITH T/N 07406-001000A ) to the pump.
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© 2005 Mitchell Repair Information Company, LLC.

2008 Honda Civic EX
2006-08 STEERING Hydraulic Power Steering Components - Civic (All Except Hybrid)

3. Measure steady-state fluid pressure from the pump at idle.
2

Is the pressure 1,470 kPa (15 kgf/cm , 213 psi) or less?
YES -Go to step 4.
NO -Go to step 8.
4. Measure the pump relief pressure at idle.
2

Is the pressure 7,850-8,550 kPa (80-87 kgf/cm , 1,140-1,240 psi) or more?
YES -Go to step 5.
NO -Go to step 9.
5. With a spring scale, measure the power assist in both directions, to the left and
to the right.
Are the two measurements within 5.0 N (0.51 kgf, 1.12 lbf) of each other?
YES -Go to step 6.
NO -Go to step 11.
6. Measure the fluid pressure with both pressure gauge valves open (if so
equipped), while turning the steering wheel fully to the left and fully to the
right.
2

Is the pressure 7,850-8,550 kPa (80-87 kgf/cm , 1,140-1,240 psi) or more?
YES -Go to step 7.
NO -Faulty steering gearbox.
7. Adjust the rack guide (see RACK GUIDE ADJUSTMENT ), and retest.
Is the steering OK?
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© 2005 Mitchell Repair Information Company, LLC.

2008 Honda Civic EX
2006-08 STEERING Hydraulic Power Steering Components - Civic (All Except Hybrid)

YES -Repair is completed.
NO -Faulty steering gearbox.
8. Check the outlet and return hoses and lines between the pump and the steering
gearbox for clogging and deformation.
Are the lines clogged or deformed?
YES -Repair or replace the lines.
NO -Faulty valve body unit.
9. Disassemble the pump (see PUMP OVERHAUL ).
10. Check the pressure control valve for smooth movement and leaks (see step
16 ).
Is the pressure control valve OK?
YES -Faulty pump assembly.
NO -Faulty pressure control valve.
11. Check the cylinder lines for deformation (see POWER STEERING HOSE,
LINE, AND PRESSURE SWITCH REPLACEMENT ).
Are any of the lines deformed?
YES -Replace the deformed line.
NO -Go to step 12.
12. Check for a bent rack shaft or misadjusted rack guide (too tight).
Is the rack shaft bent or the rack guide adjusted too tight?
YES -Replace the rack shaft, or readjust the rack guide.
NO -Faulty valve body unit.
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© 2005 Mitchell Repair Information Company, LLC.

2008 Honda Civic EX
2006-08 STEERING Hydraulic Power Steering Components - Civic (All Except Hybrid)

PUMP PRESSURE TEST WITH T/N 07406-0010001

Special Tools Required




P/S joint adapter (pump) 07RAK-S040111
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 the steering gearbox.
1. Check the power steering fluid level (see FLUID REPLACEMENT ).
2. Remove the cowl cover and under-cowl panel (see FRONT GRILLE
COVER REPLACEMENT ).
3. Remove the pump outlet hose clamp (A) from the intake manifold.

Fig. 2: Identifying Pump Outlet Hose Clamp (With Torque Specifications)
4. Disconnect the pump outlet hose, then install the P/S joint adapter (pump) on
the pump (A). Take care so as not to spill the power steering fluid on the frame
and other parts.

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© 2005 Mitchell Repair Information Company, LLC.

2008 Honda Civic EX
2006-08 STEERING Hydraulic Power Steering Components - Civic (All Except Hybrid)

Fig. 3: Identifying P/S Joint Adapter (Pump) On Pump (With Torque
Specifications)
5. Install the P/S pressure gauge to the P/S joint adapter (pump).
6. Connect the P/S joint adapter (hose) to the P/S pressure gauge.
7. Connect the pump outlet hose (A) to the P/S joint adapter (hose).

Fig. 4: Identifying Pump Outlet Hose To P/S Joint Adapter (Hose) (With
Torque Specifications)
8. Fully open the shut-off valve (A).

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© 2005 Mitchell Repair Information Company, LLC.

2008 Honda Civic EX
2006-08 STEERING Hydraulic Power Steering Components - Civic (All Except Hybrid)

Fig. 5: Identifying Pressure Control Valve
9. Fully open the pressure control valve (B).
10. Start the engine, and let it idle.
11. Turn the steering wheel from lock-to-lock several times to warm the fluid to
operating temperature at 158°F (70°C).
12. Measure steady-state fluid pressure while the engine is idling. If the pump is in
2

good condition, the gauge should be no more than 1,470 kPa (15 kgf/cm , 213
psi). If it reads higher, check for:
Clogged or deformed pump outlet or return line between the pump and the
steering gearbox.
Clogged valve body unit.
13. Raise the engine speed to 3,000 rpm, and measure the fluid pressure. If the
pump is in good condition, the gauge should read at least 1,470 kPa (15
2

kgf/cm , 213 psi). If it reads higher, repair or replace the pump.
14. 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.
NOTE:

Do not keep the shut-off valve closed more than 5
seconds or the pump could be damaged by
overheating.

15. Immediately open the shut-off valve fully.
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© 2005 Mitchell Repair Information Company, LLC.

2008 Honda Civic EX
2006-08 STEERING Hydraulic Power Steering Components - Civic (All Except Hybrid)

If the pump is in good condition, the gauge should read at least 7,850-8,550
2

kPa (80-87 kgf/cm , 1,140-1,240 psi). A low reading means pump output is
too low for full assist. Repair or replace the pump.
16. Reinstall all removed parts.
PUMP PRESSURE TEST WITH T/N 07406-001000A

Special Tools Required




P/S joint adapter (pump) 07RAK-S040111
P/S joint adapter (hose) 07RAK-S040122
P/S pressure gauge 07406-001000A

Check the fluid pressure as follows to determine whether the trouble is in the pump
or the steering gearbox.
1. Check the power steering fluid level (see FLUID REPLACEMENT ).
2. Remove the cowl cover and under-cowl panel (see FRONT GRILLE
COVER REPLACEMENT ).
3. Remove the pump outlet hose clamp (A) from the intake manifold.

Fig. 6: Identifying Pump Outlet Hose Clamp (With Torque Specifications)
4. Disconnect the pump outlet hose, then install the P/S joint adapter (pump) on
the pump (A). Take care so as not to spill the power steering fluid on the frame
and other parts.
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Page 13

© 2005 Mitchell Repair Information Company, LLC.

2008 Honda Civic EX
2006-08 STEERING Hydraulic Power Steering Components - Civic (All Except Hybrid)

Fig. 7: Identifying P/S Joint Adapter (Pump) On Pump (With Torque
Specifications)
5. Install the P/S pressure gauge to the P/S joint adapter (pump).
6. Connect the P/S joint adapter (hose) to the P/S pressure gauge.
7. Connect the pump outlet hose (A) to the P/S joint adapter (hose).

Fig. 8: Identifying P/S Pressure Gauge To P/S Joint Adapter (Pump)
(With Torque Specifications)
8. Open the shut-off valve (A) fully.

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© 2005 Mitchell Repair Information Company, LLC.

2008 Honda Civic EX
2006-08 STEERING Hydraulic Power Steering Components - Civic (All Except Hybrid)

Fig. 9: Identifying Shut-Off Valve - P/S Pressure Gauge
9. Start the engine, and let it idle.
10. Turn the steering wheel from lock-to-lock several times to warm the fluid to
operating temperature at 158°F (70°C).
11. Measure steady-state fluid pressure while the engine is idling. If the pump is in
2

good condition, the gauge should be no more than 1,470 kPa (15 kgf/cm , 213
psi). If it reads higher, check for:
Clogged or deformed pump outlet or return line between the pump and the
steering gearbox.
Clogged valve body unit.
12. Raise the engine speed to 3,000 rpm, and measure the fluid pressure. If the
pump is in good condition, the gauge should read at least 1,470 kPa (15
2

kgf/cm , 213 psi). If it reads higher, repair or replace the pump.
13. Lower the engine speed, and let it idle. Close the shut-off valve gradually until
the pressure gauge needle is stable. Read the pressure.
NOTE:

Do not keep the shut-off valve closed more than 5
seconds or the pump could be damaged by
overheating.

14. Immediately open the shut-off valve fully. If the pump is in good condition, the
2

gauge should read at least 7,850-8,550 kPa (80-87 kgf/cm , 1,140-1,240 psi).
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Friday, April 17, 2009 9:36:39 AM

Page 15

© 2005 Mitchell Repair Information Company, LLC.

2008 Honda Civic EX
2006-08 STEERING Hydraulic Power Steering Components - Civic (All Except Hybrid)

A low reading means pump output is too low for full assist. Repair or replace
the pump.
15. Reinstall all removed parts.
FLUID LEAKAGE INSPECTION

Fig. 10: Identifying Fluid Leakage Components Location
FLUID REPLACEMENT

Check the reservoir (A) at regular intervals, and add the recommended fluid as
necessary. Always use Honda Power Steering Fluid. Use of any other type of power
steering fluid or automatic transmission fluid can cause increased wear and poor
steering in cold weather.
NOTE:

If the fluid is contaminated, the screen in the reservoir may
be partially blocked. Replace the reservoir if necessary.

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Page 16

© 2005 Mitchell Repair Information Company, LLC.

2008 Honda Civic EX
2006-08 STEERING Hydraulic Power Steering Components - Civic (All Except Hybrid)

Fig. 11: Identifying Fluid Reservoir
1. Remove the reservoir from its holder. Raise the reservoir, then disconnect the
return hose (A) to drain the reservoir. Take care not to spill the fluid on the
body and parts. Wipe off any spilled fluid at once.
NOTE:

Inspect the reservoir screen for any debris. If the
reservoir screen is clogged, replace the reservoir.

Fig. 12: Identifying Reservoir Tank Specified Level - Upper Level Line
2. Connect a hose (B) of suitable diameter to the disconnected return hose, and
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Page 17

© 2005 Mitchell Repair Information Company, LLC.

2008 Honda Civic EX
2006-08 STEERING Hydraulic Power Steering Components - Civic (All Except Hybrid)

3.

4.
5.
6.
7.
8.

put the hose end in a suitable container.
Start the engine, let it run at idle, and turn the steering wheel from lock-to-lock
several times. When fluid stops running out of the hose, shut off the engine.
Discard the fluid.
Reinstall the return hose on the reservoir.
Fill the reservoir to the upper level line (C).
Start the engine and run it at fast idle, then turn the steering from lock-to-lock
several times to bleed air from the system.
Recheck the fluid level and add some if necessary. Do not fill the reservoir
beyond the upper level line.
If the fluid is contaminated, dark, or discolored, repeat the procedure as
necessary.

POWER STEERING HOSE, LINE, AND PRESSURE SWITCH REPLACEMENT

Note these items during installation:






Connect each hose to the corresponding line securely until it contacts the stop
on the line. Install the clamp or adjustable clamp at the specified distance from
the hose end as shown.
Check all clamps for deterioration or deformation; replace the clamps with new
ones if necessary.
Add the recommended power steering fluid to the specified level on the
reservoir and check for leaks.

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Friday, April 17, 2009 9:36:39 AM

Page 18

© 2005 Mitchell Repair Information Company, LLC.

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