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DISASSEMBLY
Disassemble control valve upper, inter and lower bodies.
Bolt length, number and location:
f: Reamer bolt and nut.
1. Remove bolts a , d , reamer bolt f and nut , and remove oil
strainer from control valve assembly.
2. Remove bolts a, c and g , and remove solenoid valve assembly
and line pressure solenoid valve from control valve assembly.
Bolt symbolabcde f g
Bolt length “ ” mm (in)
13.5
(0.531)58.0
(2.283) 40.0
(1.575)66.0
(2.598)33.0
(1.299)78.0
(3.071)18.0
(0.709)
Number of bolts 6 3 6 11 2 2 1
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3. Remove O-rings (1) from solenoid valves and terminal body.
4. Place control valve upper body facedown, and remove bolts b
and nut f .
CAUTION:
Remove bolts with control valve upper body facing down,
because control valve upper body and control valve inter
body may come off and steel ball may fall and be lost.
5. Remove control valve lower body from control valve inter body.
6. Turn over control valve lower body.
7. Remove bolts e , separating plate and support plate from control
valve lower body.
8. Remove check balls and oil cooler relief valve springs from con-
trol valve lower body.
CAUTION:
Be careful not to lose check balls and oil cooler relief valve
springs.
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9. Remove control valve inter body from control valve upper body.
10. Check to see that steel balls are properly positioned in control
valve inter body and then remove them.
CAUTION:
Be careful not to lose steel balls.
11. Remove pilot filter from control valve upper body.
12. Remove separating plate from control valve upper body.
13. Check to see that steel balls are properly positioned in control
valve upper body and then remove them.
CAUTION:
Be careful not to lose steel balls.
INSPECTION
Control Valve Lower and Upper Bodies
CAUTION:
Be careful not to lose these parts.
Check to see that retainer plates are properly positioned in con-
trol valve lower body.
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Check to see that retainer plates are properly positioned in con-
trol valve upper body.
Oil Strainer
Check wire netting of oil strainer for damage. Replace if necessary.
Shift Solenoid Valves “A” and “B”, Line Pressure Solenoid Valve, Torque Converter Clutch
Solenoid Valve and Overrun Clutch Solenoid Valve
Measure resistance.
A/T Fluid Temperature Sensor
Measure resistance.
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Item TerminalResistance
(Approx.)
Shift solenoid valve A 2 Ground 20 - 30 Ω
Shift solenoid valve B 1 Ground 5 - 20Ω
Line pressure solenoid valve 4 Ground 2.5 - 5.0Ω
Torque converter clutch
solenoid valve5Ground5 - 20Ω
Overrun clutch solenoid
valve3 Ground 20 - 30Ω
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Item Terminal Temperature°C (°F)Resistance
(Approx.)
A/T fluid tem-
perature sensor6 - 720 (68) 2.5 kΩ
80 (176) 0.3 kΩ
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Oil Cooler Relief Valve Springs
Check each spring for damage or deformation. Also measure
free length and outer diameter. Refer to AT- 3 6 4 , "
Control
Va l v e s" .
Replace springs if deformed or fatigued.
ASSEMBLY
1. Install control valve upper, inter and lower body.
a. Place oil circuit of control valve upper body face up. Install steel
balls in their proper positions.
b. Install reamer bolts f from bottom of control valve upper body.
Using reamer bolts f as guides, install separating plate as a set.
c. Install pilot filter to control valve upper body.
SAT138D
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d. Place control valve inter body as shown in figure (side of control
valve lower body face up). Install steel balls in their proper posi-
tions.
e. Install control valve inter body on control valve upper body using
reamer bolts f as guides.
CAUTION:
Be careful not to dislocate or drop steel balls.
f. Install check balls and oil cooler relief valve springs in their
proper positions in control valve lower body.
g. Install bolts e from bottom of control valve lower body. Using
bolts e as guides, install separating plate as a set.
h. Install support plates on control valve lower body.
i. Install control valve lower body on control valve inter body using
reamer bolts f as guides, and tighten reamer bolts f slightly.
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2. Install O-rings (1) to solenoid valves and terminal body.
3. Install and tighten bolts.
Bolt length, number and location:
f: Reamer bolt and nut.
a. Install and tighten bolts b and nut f to specified torque.
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Bolt symbolabcde f g
Bolt length “ ” mm (in)
13.5
(0.531)58.0
(2.283) 40.0
(1.575)66.0
(2.598)33.0
(1.299)78.0
(3.071)18.0
(0.709)
Number of bolts 6 3 6 11 2 2 1
Tightening torque
N·m (kg-m, in-lb)7.8 (0.80, 69)4.0
(0.41, 35)7.8 (0.80, 69)
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: 7.8 N·m (0.80 kg-m, 69 in-lb)
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b. Install solenoid valve assembly and line pressure solenoid valve
to control valve assembly.
c. Tighten bolts a , c and g to specified torque.
d. Set oil strainer, then tighten bolts a , d and nut f to specified
torque.
e. Tighten bolts e to specified torque. : 7.8 N·m (0.80 kg-m, 69 in-lb)
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: 7.8 N·m (0.80 kg-m, 69 in-lb)
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: 4.0 N·m (0.41 kg-m, 35 in-lb)
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