Honda Civic. Manual — part 163

Improper alignment of the ATF
pump and the torque converter
housing may cause the ATF
pump to seize. The symptoms
are mostly an rpm-related
ticking noise or a high pitched
squeak.

Be careful not to damage the
torque converter housing when
replacing the main ball bearing.
You may also damage the ATF
pump when you torque down
the main valve body. This will
cause ATF pump to seize.

Install the main seal flush with
the torque converter housing
when replacing the main seal. If
you push it into the torque
converter housing until it
bottoms out, it will block the
fluid return passage and result in
damage.

Check the lock-up shift valve in
the regulator valve body.

Adjust the transmission and
engine mounts by loosening and
retightening the mount bolts.

Vehicle moves in
N

1. Excessive ATF
2. Foreign material

in separator plate
orifice

3. Relief valve

defective

Check the ATF level, and drain
the ATF if it is overfilled.

Check for a clogged orifice in
the separator plate. If the orifice
is clogged, remove it and clean
the separator plate orifice.

Check the ATF strainer for

2008 Honda Civic LX

2006-08 TRANSMISSION Automatic Transmission - Civic (Except Hybrid)

4. 1st clutch

defective

5. 2nd clutch

defective

6. 3rd clutch

defective

7. 4th clutch

defective

8. 5th clutch

defective

9. Clearance

between clutch
end-plate and top
disc incorrect

10. Needle bearing

seized, worn, or
damaged

11. Thrust washer

seized, worn, or
damaged

debris. If the strainer is clogged
with particles of steel or
aluminum, inspect the ATF
pump. If the ATF pump is OK,
find the damaged components
that caused the debris. If no
cause for contamination is
found, replace the torque
converter.

Check the relief valve in the
main valve body.

Check the 1st, 2nd, 3rd, 4th, and
5th clutch pressures.

Inspect the mainshaft, the
secondary shaft, the 1st, 2nd,
3rd, 4th, and 5th clutches for
wear and damage.

Inspect the clutch piston, the
clutch piston check valve, and
the 0-rings. Check the spring
retainer for wear and damage.
Inspect the clearance between
the clutch end-plate and the top
disc. If the clearance is out of
tolerance, inspect the clutch
discs and the plates for wear and
damage, and inspect the clutch
wave-plate height. If the discs
and the plates are worn or
damaged, replace them as a set.
If the wave-plate height is out of
tolerance, replace the wave-
plate. If they are OK, adjust the
clearance with the clutch end-
plate.

2008 Honda Civic LX

2006-08 TRANSMISSION Automatic Transmission - Civic (Except Hybrid)

Inspect the 2nd, 3rd, and 4th
clutch feed pipes.

If the 2nd clutch feed pipe is
scored, replace the end cover.

If the 3rd or 4th clutch feed pipe
is scored, replace it and the O-
rings under the feed pipe flange.

Replace the secondary shaft if
the bushing for the 2nd clutch
feed pipe or the 4th clutch feed
pipe is loose or damaged.

Replace the mainshaft if the
bushing for the 3rd clutch feed
pipe is loose or damaged.

Late shift after
shifting from N
to D, or
excessive shock
when shifted into
D

1. A/T clutch

pressure control
solenoid valve A
defective

2. A/T clutch

pressure control
solenoid valve B
defective

3. A/T clutch

pressure control
solenoid valve C
defective

4. Shift cable broken

or out of
adjustment

5. Connection

between shift
cable and
transmission or

Check for a stored DTC, and
check for loose connections.

Test the solenoid valve function
with the HDS.

Inspect the A/T clutch pressure
control solenoid valve body
gasket, the ATF feed pipes, and
the O-rings, for wear and
damage.

Check for a loose shift cable at
the shift lever and the
transmission control lever.

Check the input shaft
(mainshaft) speed sensor and the
output shaft (countershaft) speed
sensor installation.

Inspect the sensor O-ring for
wear and damage.

Check for a clogged orifice in

2008 Honda Civic LX

2006-08 TRANSMISSION Automatic Transmission - Civic (Except Hybrid)

body is worn

6. Input shaft

(mainshaft) speed
sensor defective

7. Output shaft

(countershaft)
speed sensor
defective

8. ATF temperature

sensor defective

9. Foreign material

in separator plate
orifice

10. Servo control

valve defective

11. 1st accumulator

defective

12. 1st check ball

stuck

13. Lock-up shift

valve defective

14. 1st clutch

defective

the separator plate. If the orifice
is clogged, remove it and clean
the separator plate orifice.

Check the ATF strainer for
debris. If the strainer is clogged
with particles of steel or
aluminum, inspect the ATF
pump. If the ATF pump is OK,
find the damaged components
that caused the debris. If no
cause for contamination is
found, replace the torque
converter.

Check the servo control valve in
the main valve body.

Inspect the 1st accumulator
piston, the O-ring, and the
spring for wear and damage in
the regulator valve body.

Check that the 1st check ball is
not stuck in the main valve
body.

Check the lock-up shift valve in
the regulator valve body.

Check the 1st clutch pressure.

Inspect the secondary shaft and
the 1st clutch for wear and
damage.

Inspect the clutch piston, the
clutch piston check valve, and
the O-rings. Check the spring
retainer for wear and damage.
Inspect the clearance between
the clutch end-plate and the top

2008 Honda Civic LX

2006-08 TRANSMISSION Automatic Transmission - Civic (Except Hybrid)