Page 5745 of 6000

7A–56
AUTOMATIC TRANSMISSION (4L30–E)
Ensure free rotation of pump using 5–8840–2273–0
(J–23082–01) oil pump rotation tool.
241RW010
38. Overdrive clutch end play measurement.
1. Fit 5–8840–2271–0 (J–25022) and
5–8840–0618–0 (J–24773–1) turbine shaft puller
on turbine shaft.
2. Position axial play checking tool on converter
housing mating face.
3. Pull turbine shaft upwards with puller until first
resistance is met. (due to weight of overdrive
assembly).
4. Maintain shaft in this position and set indicator to
zero.
5. Pull turbine shaft further upwards with puller.
Read end play shown on indicator.
End play: 0.1mm – 0.8mm (0.004 in – 0.031in)6. Remove axial play checking tool and puller.
NOTE: If end play is not correct, repeat selective washer
selection.
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39. Inspect extension housing oil seal and replace if
necessary, using 5–8840–2282–0 (J–36797)
extension housing oil seal installer.
Rotate transmission to horizontal position, with
valve body side down.
Inspect parking wheel seal ring. Replace if
necessary.
Install wheel parking lock assembly (35).
40. Install speed wheel (36) and snap ring (37).
NOTE: Use extra long, needle-nose pliers.
41. Install gasket onto extension assembly with a thin
coating of oil.
Install extension housing assembly (38), and align
parking pawl shaft.
Install actuator assembly into extension assembly.
Install seven 8 mm hexagon socket head screws.
To r q u e : 3 2 N
m (3.3 kgꞏm/24 lb ft)
42. Inspect speed sensor O–ring. Replace if necessary.
Install speed sensor assembly (39) and 10 mm
screw.
To r q u e : 9 N
m (0.9 kgꞏm/78 lb in)
Page 5746 of 6000

7A–57 AUTOMATIC TRANSMISSION (4L30–E)
241RW009
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43. Main case end play measurement.
1. Attach axial play checking tool on the extension
housing and set indicator to zero on output shaft.
2. Manually push output shaft upwards.
End play: 0.36mm – 0.80mm (0.014 in – 0.031in)
3. Remove axial play checking tool.
4. If end play is not correct, repeat selective washer
selection.
241RS005
44. Inspect servo piston seal ring. Replace if necessary.
Ensure brake band is correctly positioned. Rotate
output shaft if necessary.
Install 5–8840–2274–0 (J–38428) servo piston
fitter in servo bore.
Install apply rod (40), round end toward band, return
spring (41) and piston assembly (42).
45. Install the 5–8840–0501–0 (J–23075) servo spring
compressor with offset to rear of case.
Compress servo piston seal ring, using fitter while
tightening the tool screw.
Install servo piston retaining ring (43).
Remove tool.
Adjust the brake band by tightening the servo
adjusting screw to 4.5 Nꞏm torque. Be certain the
lock nut is loose, then back–off the screw five turns
exactly. Hold piston sleeve with wrench and tighten
lock nut to 18.5 Nꞏm torque. Be certain the adjusting
screw does not turn.
Page 5747 of 6000

7A–58
AUTOMATIC TRANSMISSION (4L30–E)
242RW008
46. Install two check balls (44).
244RW002
47. Inspect main case electrical connector and seal,
replace if necessary.
Install electrical 4 pin connector/main case and
wiring harness.
48. Install two 5–8840–0022–0 (J–25025–B) guide pins
into main case.
Install main case valve body complete assembly
(45) and manual valve link.NOTE: Valve must be extended as the short end of
manual valve link is connected to the range selector lever.
Long end of link goes into valve.
Install seven 13 mm screws.
To r q u e : 2 0 N
m (2.0 kgꞏm/15 lb ft)
Pass ground wire of adapter case wiring harness
assembly through the hole joining adapter fluid area
and main case fluid area.
Assemble 8.5 mm connector of ground wire under
the head of this valve body bolt and reinstall it.
Remove two guide pins.
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49. Install servo cover gasket, cover (46) and four 13 mm
screws.
To r q u e : 2 5 N
m (2.6 kgꞏm/18 lb ft)
50. Connect wiring harness (47) to band control, shift
solenoids, and main case 4 pin connector.
51. Install manual detent roller and spring assembly (48)
with clip.
Install two 13 mm screws.
To r q u e : 2 0 N
m (2.0 kgꞏm/15 lb ft)
52. Install oil filter (49), and three 13 mm screws.
To r q u e : 2 0 N
m (2.0 kgꞏm/15 lb ft)
53. Install oil pan gasket, magnet, main oil pan (50), and
sixteen 10 mm screws.
To r q u e : 11 N
m (1.1 kgꞏm/96 lb in)
54. Inspect adapter case electrical connector and seal.
Replace if necessary.
Install electrical five pin connector and harness
assembly (52) in bottom of adapter case.
55. Install gasket, transfer plate, and gasket.
Install adapter case valve body (51) and seven 13
mm screws.
Torque: 20 N
m (2.0 kgꞏm/15 lb ft)
Page 5748 of 6000

7A–59 AUTOMATIC TRANSMISSION (4L30–E)
56. Connect wiring harness harness assembly (52) to
converter clutch solenoid, force motor, and 5 pin
connector.
57. Install oil pan gasket, adapter case oil pan (53), and
twelve 10 mm screws.
Torque: 11 N
m (1.1 kgꞏm/96 lb in)
Rotate transmission, with bottom pan facing down.
58. Install mode switch (54), two 10 mm screws, selector
lever nut, and cover.
10 mm screw
Torque: 13 N
m (1.3 kgꞏm/113 lb in)
Nut
Torque: 23 N
m (2.3 kgꞏm/17 lb ft)
Adjust using setting tool, refer to Mode Switch in
this section.
59. Install O–ring (55) on turbine shaft.60. Install torque converter (56)
The converter assembly must be replaced under any
of the following conditions:
a. Evidence of damage to the pump assembly.
b. Metal particles are found after flushing the cooler
lines.
c. External leaks in hub weld area.
d. Converter pilot broken, damaged, or poor fit into
crankshaft.
e. Converter hub scored or damaged.
f. Internal failure in stator.
g. Contamination from engine coolant.
h. Excess end play.Rotate transmission, bell housing up. Spin
converter to insure proper fit.
61. Fill transmission through the overfill screw hole of oil
pan, using ATF DEXRON
–III. Refer to Changing
Transmission Fluid in this section.
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7A–60
AUTOMATIC TRANSMISSION (4L30–E)
Converter Housing And Oil Pump Assembly
Disassembled View
241RW003
Legend
(1) Converter Housing
(2) Outer Seal Ring
(3) Gasket(4) Wear Plate
(5) Oil Pump Assembly
(6) Oil Seal Ring
Disassembly
1. Remove oil pump assembly from converter housing.
2. Remove outer seal ring.
3. Remove gasket.
4. Remove wear plate.
5. Remove oil seal ring.
Inspection And Repair
Visual Check:
If any damage, deformation, or local wear is found in a
converter housing, outer seal ring, wear plate, or oil seal
ring, replace it.
Reassembly
1. Install wear plate onto oil pump assembly.
2. Install converter housing onto complete oil pump
assembly. Align with two short 5–8840–2268–0
(J–38588) guide pins on outer bolt holes.
Loosely install five 13mm bolts.
Center converter housing using 5–8840–2272–0
(J–38557) centering tool.
Tighten five inner 13mm bolts in an alternating
pattern.
To r q u e : 2 0 N
m (2.0 kgꞏm/15 lb ft)
241RW020
3. Install oil seal ring (3 screws).
To r q u e : 3 N
m (0.3 kgꞏm/26 lb in)
4. Install gasket.
5. Install outer seal ring.
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7A–61 AUTOMATIC TRANSMISSION (4L30–E)
Oil Pump
Disassembled View
241RS014
Legend
(1) Oil Pump Drive Gear
(2) Oil Pump Driven Gear
(3) Pin
(4) Plug
(5) Spring
(6) Converter Clutch Control Valve
(7) Snap Ring
(8) Spring Seat
(9) Spring(10) Throttle Signal Accumulator Piston
(11) Sleeve Pin
(12) Sleeve
(13) Boost Valve
(14) Spring Seat
(15) Valve Spring
(16) Spring Seat
(17) Pressure Regulator valve
(18) Oil Pump Assembly
Disassembly
1. Remove oil pump drive gear (1) and driven gear (2).
2. Remove pin (3) from oil pump assembly (18).
3. Remove plug (4), spring (5), and converter clutch
control valve (6).
4. Remove snap ring (7) from oil pump assembly (18).
5. Remove spring seat (8), spring (9), and throttle signal
accumulator piston (10).
6. Remove sleeve pin (11) from oil pump assembly (18).
7. Remove sleeve (12), boost valve (13), spring seat
(14), valve spring (15), spring seat (16), and pressure
regulator valve (17).
Inspection And Repair
Visual Check:
If any damage, deformation or wear is found, replace the
damaged part.
Reassembly
1. Lubricate and preinstall pressure regulator spring
seat (16) on valve (17), with the flat side against
shoulder.
2. Install pressure regulator valve (17) and spring seat
(16) assembly, valve spring (15), and spring seat (14)
with the flat side away from spring to oil pump
assembly (18).
3. Assemble boost valve (13) into sleeve (12).
4. Install boost valve and sleeve assembly, and sleeve
pin (11) to oil pump assembly (18).
5. Install throttle signal accumulator piston (10), spring
(9), and spring seat (8), with the flat side away from
the spring, and snap ring (7) to oil pump assembly
(18).
6. Install converter clutch control valve (6), spring (5),
plug (4), and pin (3) to oil pump assembly (18).
7. Install oil pump driven gear (2) and drive gear (1).
Page 5751 of 6000

7A–62
AUTOMATIC TRANSMISSION (4L30–E)
Main Case Valve Body
Disassembled View
244RS010
Legend
(1) Gaskets and Transfer Plate
(2) Manual Valve
(3) Band Control Solenoid
(4) Pin
(5) Waved Washer
(6) Spring Pin
(7) Solenoid A
(8) Retainer
(9) 1–2/3–4 Shift Valve
(10) Spring
(11) Spring Pin
(12) Solenoid B
(13) Retainer
(14) 2–3 Shift Valve(15) Spring
(16) Spring Pin
(17) Plug
(18) Spring
(19) Low Pressure Control Valve
(20) Spring Pin
(21) Plug
(22) Band Control Screen Assembly
(23) Spring Pin
(24) Plug
(25) 1–2 Accumulator Valve
(26) 1–2 Accumulator Control Valve
(27) Check Ball
(28) Main Case Valve Body
Disassembly
1. Remove two 11mm bolts from valve body (28), then
remove gaskets and transfer plate (1).
2. Remove manual valve (2).
3. Push in band control solenoid (3) to compress waved
washer (5), and remove pin (4).
4. Remove band control solenoid (3) and waved washer
(5).5. Remove spring pin (6) with a 3 mm dia punch.
6. Remove solenoid A (7) by grasping the metal tip. Do
not grasp the connector housing.
7. Remove retainer (8), 1–2/3–4 shift valve (9), and
spring (10).
8. Remove spring pin (11) with a 3 mm dia punch.
9. Remove solenoid B (12) by grasping the metal tip. Do
not grasp the connector housing.
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7A–63 AUTOMATIC TRANSMISSION (4L30–E)
10. Remove retainer (13), 2–3 shift valve (14), and spring
(15).
11. Remove spring pin (16), plug (17), spring (18), and
low pressure control valve (19).
12. Remove spring pin (20), plug (21), and band control
screen assembly (22).
13. Remove spring pin (23), plug (24), 1–2 accumulator
valve (25), and 1–2 accumulator control valve (26).
14. Remove check ball (27) from valve body (28).
Inspection And Repair
Inspect for the following, and replace any damaged or
worn parts:
1. Damage or wear to each valve.
2. Damage in oil passeges.
3. Cracks or damage to valve body.
4. Valve operations.
5. Spring fatigue.
Reassembly
1. Install 1–2 accumulator control valve (26), 1–2
accumulator valve (25), plug (24), and spring pin (23).
2. Install band control screen assembly (22), plug (21),
and spring pin (20).
3. Install low pressure control valve (19), spring (18),
plug (17), and spring pin (16).
4. Install spring (15), 2–3 shift valve (14), retainer (13),
solenoid B (12), and spring pin (11).
5. Install spring (10), 1–2/3–4 shift valve (9), retainer (8),
solenoid A (7), and spring pin (6).
6. Install waved washer (5), band control solenoid (3),
and pin (4).
7. Install manual valve (2).
8. Install check ball (27) to valve body (28).9. Install gasket (valve body/transfer plate) and transfer
plate using two 5–8840–2270–0 (J–3387–2) guide
pins.
Install two 11mm bolts.
To r q u e : 1 3 N
m (1.3 kgꞏm/113 lb in)
244RW004
Install gasket (transfer plate/main case).