Page 3945 of 6020
Automatic Transmission – 4L60E – On-vehicle Servicing Page 7C4–32
2 If required, reinstall the seven checkballs (1) in the
control valve body securing them with petroleum jelly.
Figure 7C4 – 41
3 Reinstall the manual valve link (1) to the inner detent lever (2), refer to Figure 7C4 – 42.
4 W hile supporting the control valve body (3), rotate it slightly and connect the manual valve link with the manual valve (4).
Take care not to damage the two filter screens
attached to the spacer plate during this
operation.
5 Position the manual valve forward to retain the link connection and carefully raise the valve body into position.
6 Check if the manual valve link is correctly reinstalled in the detent lever and manual valve.
Figure 7C4 – 42
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Page 3946 of 6020
Automatic Transmission – 4L60E – On-vehicle Servicing Page 7C4–33
When reinstalling the bolts throughout this
procedure, ensure to use the correct bolt
dimension in each location.
7 Reinstall one bolt (1) (M6 X 1.0 X 47.5) hand tight in the centre of the control valve body to hold it in place,
at location C as shown.
Figure 7C4 – 43
8 Reinstall hand tight only, the remainder of the fourteen bolts (1) attaching the control valve body directly.
NOTE
Refer to Figure 7C4 – 40 for each bolt dimension
and corresponding location.
Figure 7C4 – 44
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Page 3947 of 6020

Automatic Transmission – 4L60E – On-vehicle Servicing Page 7C4–34
9 Fit a new shield (1) to the transmission fluid pressure
(TFP) manual valve position switch (2) and reinstall to
the control valve body.
NOTE
Refer to Figure 7C4 – 40 for bolt dimension and
corresponding location.
10 Reinstall the three long bolts (3) and the two short bolts (4) hand tight only.
11 Reinstall the manual detent spring (5) and the attaching bolt (6) hand tight only.
Figure 7C4 – 45
The control valve body bolts must be
tightened in an outward spiral starting from
the centre. Failure to follow this pattern may
distort the valve body causing the valves to
jam in their bores.
12 Follow the sequence starting from the centre as shown by the arrows to tighten the following bolts to the
correct torque specification:
• fourteen bolts (1) attaching the control valve
body,
• five bolts (2) attaching the transmission fluid
pressure (TFP) manual valve position switch and
• one bolt (3) attaching the manual detent spring.
Control valve body attaching bolt
torque specification ............................................ 12.0 Nm
Transmission fluid pressure (TFP) manual valve position switch attaching bolt torque specification ..................................... 12.0 Nm
Manual detent spring attaching bolt torque specification ............................................ 23.0 Nm
13 Reinstall the control valve body harness , refer to 3.13 Control Valve Body Harness.
Figure 7C4 – 46
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Page 3948 of 6020
Automatic Transmission – 4L60E – On-vehicle Servicing Page 7C4–35
3.15 Spacer Plate, Check Balls, Filter Screens
and 3 – 4 Accumulator
Remove
1 Remove the control valve body, refer to 3.14 Control Valve Body.
2 Remove the three attaching bolts (1) and the plate (2) supporting the spacer plate.
Figure 7C4 – 47
The 3 – 4 accumulator spring (1) may push
the spacer plate away from transmission
case when the 1 – 2 accumulator assembly is
removed.
3 W hile supporting the spacer plate (2), carefully remove the 1 – 2 accumulator assembly (3), refer to
3.12 1 – 2 Accumulator Assembly.
As the spacer plate and gaskets are lowered
from the transmission, a check ball and the
3 – 4 accumulator spring may drop. Do not
lose the check ball and the spring.
4 Remove the two gaskets (4 and 5) and the spacer plate from the transmission case.
Figure 7C4 – 48
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Page 3949 of 6020

Automatic Transmission – 4L60E – On-vehicle Servicing Page 7C4–36
5 If not previously dropped, remove the spring (1).
If required, use snap ring pliers to rotate and pull the
3 – 4 accumulator piston (2) to remove it from the
transmission case. Remove and discard the piston
seal.
Figure 7C4 – 49
6 Remove the check-ball (1) if not previously dropped. Remove the 3rd accumulator check ball assembly (2),
the orifice cup plug (3) and the guide pins (A) from the
transmission case.
Figure 7C4 – 50
Clean and Inspect
To avoid personal injury, wear safety glasses
and gloves when using compressed air and
cleaning fluids.
1 W ash all components in a commercially available cleaning fluid and blow dry using compressed air.
2 Inspect the components for the following:
• piston for porosity,
• ring groove or pin hole damage,
• spring for distortion or damage,
• accumulator bore for wear or damage and
• spacer plate, filter screens and check balls for damage.
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Page 3950 of 6020
Automatic Transmission – 4L60E – On-vehicle Servicing Page 7C4–37
Reinstall
1 Lubricate a new seal (1) with petroleum jelly and install
it to the 3 – 4 accumulator piston (2).
2 Reinstall the piston onto the pin (3). The piston side with the three lugs (4) must face out of the bore.
3 Reinstall the 3 – 4 accumulator spring, use a small amount of petroleum jelly to hold it in place, as
needed.
Figure 7C4 – 51
Ensure the guide pins are fully installed with
no thread visible. Otherwise the spacer plate
gasket could be caught in the thread during
installation, resulting in incorrect alignment.
4 Reinstall the guide pins (A) at the correct locations in the transmission case.
5 Reinstall the check ball (1) in the transmission case using a small amount of petroleum jelly to hold it in
place.
6 Reinstall the 3rd accumulator check ball assembly (2) and the orifice cup plug (3) in the transmission case.
Figure 7C4 – 52
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Page 3951 of 6020
Automatic Transmission – 4L60E – On-vehicle Servicing Page 7C4–38
7 If a new spacer plate (1) is installed, it is necessary to
fit two filter screens (2 and 3) to the spacer plate.
Figure 7C4 – 53
NOTE
When installing the spacer plate locate the
gaskets as follows:
• The gasket (2) marked CA is fitted between
the spacer plate and the transmission case.
• The gasket (3) marked VB is fitted between
the spacer plate and the control valve body.
8 Reinstall the spacer plate (1) with the new gaskets (2 and 3) smeared with petroleum jelly. Hold
the spacer plate in place until the 1 – 2 accumulator is
reinstalled.
9 W hile supporting the spacer plate, carefully reinstall the 1 – 2 accumulator assembly (4), refer to
3.12 1 – 2 Accumulator Assembly.
Figure 7C4 – 54
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Page 3952 of 6020

Automatic Transmission – 4L60E – On-vehicle Servicing Page 7C4–39
10 Reinstall the plate (2) supporting the spacer plate and
tighten the three attaching bolts (1) to the correct
torque specification.
Spacer plate support plate attaching
bolt torque specification ..................................... 12.0 Nm
11 Reinstall the control valve body, refer to 3.14 Control Valve Body.
12 Reinstall the Oil pan and filter and fill the transmission with the recommended automatic transmission fluid,
refer to 3.1 Fluid Change and Filter Replacement.
13 Lower vehicle to the ground.
14 Road test until the transmission has reached operating temperature. Re-check the fluid level and for any fluid
leaks from the oil pan area, refer to 2.1 Transmission
Fluid.
Figure 7C4 – 55
3.16 Filler Tube and Breather Hose
Remove
NOTE
The breather hose and/or vent pipe can be
removed independently from the filler tube as
described in step 7.
Disconnection of the battery affects certain
vehicle electronic systems. Refer to 6D1-3
Battery, before disconnecting the battery.
1 Disconnect the battery ground lead.
2 Release the lock down lever (1) and remove the transmission fluid level indicator from the filler tube (2).
Figure 7C4 – 56
3 Remove the bolt (1) attaching the filler tube (2) to the side of the right-hand cylinder head, refer to Figure 7C4 – 57.
4 Using a twisting and pulling motion, remove the filler tube from the seal (3) in the transmission case.
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