Honda Civic. Manual — part 278

Courtesy of AMERICAN HONDA MOTOR CO., INC.

REGULATOR VALVE BODY DISASSEMBLY, INSPECTION, AND REASSEMBLY

1. Clean all parts thoroughly in solvent, and dry them with compressed air. Blow

out all passages except the air check valve filter.

2. Inspect the regulator valve body for scoring and damage.
3. Hold the regulator spring cap in place while removing the stop bolt. The

regulator spring cap is spring loaded. Once the stop bolt is removed, release the
spring cap slowly so it does not pop out.

4. Check all valves for free movement. If any fail to slide freely, refer to VALVE

BODY REPAIR .

5. Check the air check valve filter for clogging. If the filter is clogged, remove the

air check valve, and clean the filter thoroughly by pouring clean ATF. Do not
blow out the filter with compressed air. Replace the air check valve, if the filter
or check valve (ball) is clogged or damaged.

6. Coat all parts with ATF during assembly.
7. Align the hole in the regulator spring cap with the stop bolt hole, then press the

spring cap into the valve body, and tighten the stop bolt.

2008 Honda Civic LX

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

Fig. 394: Disassembling Regulator Valve Body
Courtesy of AMERICAN HONDA MOTOR CO., INC.

VALVE SPRING SPECIFICATIONS

VALVE SPRING SPECIFICATIONS

Valve Springs

Standard (New)-Unit: mm (in.)

Wire

Diameter O.D.

Free

Length

No. of

Coils

A

Stator
reaction
spring

4.5

(0.177)

35.4

(1.394)

30.3

(1.193)

1.92

B

Regulator
valve spring
A

1.9

(0.075)

14.7

(0.579)

80.6

(3.173)

16.1

C

Regulator
valve spring
B

1.6

(0.063)

9.2

(0.362)

44.0

(1.732)

12.5

D

Torque
converter
check valve
spring

1.2

(0.047)

8.6

(0.339)

33.8

(1.331)

12.2

E

Lock-up
shift valve
spring

1.0

(0.039)

6.6

(0.260)

35.5

(1.398)

18.2

F

1st
accumulator
spring B

2.4

(0.094)

12.2

(0.480)

35.0

(1.378)

7.7

G

1st
accumulator
spring A

2.4

(0.094)

18.6

(0.732)

50.1

(1.972)

6.7

H

4th
accumulator
spring

2.5

(0.098)

14.6

(0.575)

29.9

(1.177)

4.9

2008 Honda Civic LX

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

SERVO BODY DISASSEMBLY, INSPECTION, AND REASSEMBLY

1. Clean all parts thoroughly in solvent, and dry them with compressed air. Blow

out all passages.

2. Inspect the servo body for scoring and damage.
3. Check all valves for free movement. If any fail to slide freely, refer to VALVE

BODY REPAIR .

4. Coat all parts with ATF during assembly.

Fig. 395: Disassembling Servo Body & Bolts w/Torque Specification
Courtesy of AMERICAN HONDA MOTOR CO., INC.

VALVE SPRING SPECIFICATIONS

VALVE SPRING SPECIFICATIONS

Standard (New)-Unit: mm (in.)

Wire

Free No. of

2008 Honda Civic LX

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

SHIFT SOLENOID VALVE REMOVAL AND INSTALLATION

1. Remove the mounting bolts, then remove the solenoid valves by holding the

solenoid valve body.

2. Install new O-rings (E) on each solenoid valve.

Valve Springs

Diameter O.D. Length Coils

A

Cut valve A
spring

0.9

(0.035)

9.9

(0.390)

22.3

(0.878)

6.9

B

Shift valve
B spring

0.8

(0.031)

7.1

(0.280)

23.7

(0.933)

9.7

C

5th
accumulator
spring A

2.5

(0.098)

16.6

(0.654)

46.9

(1.846)

7.8

D

5th
accumulator
spring B

1.9

(0.075)

10.0

(0.394)

38.5

(1.516)

10.6

E

2nd
accumulator
spring A

1.8

(0.071)

14.6

(0.575)

43.8

(1.724)

7.9

F

2nd
accumulator
spring B

1.85

(0.073)

9.4

(0.370)

32.5

(1.280)

8.7

G

3rd
accumulator
spring A

1.8

(0.071)

14.6

(0.575)

43.8

(1.724)

7.9

H

3rd
accumulator
spring B

1.85

(0.073)

9.4

(0.370)

32.5

(1.280)

8.7

NOTE:

Do not hold the solenoid valve connector to remove and
install the solenoid valves. Be sure to hold the solenoid
valve body.

NOTE:

A new shift solenoid valve comes with new O-rings. If

2008 Honda Civic LX

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