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Check wire netting of oil strainer for damage. Replace if necessary.
Shift Solenoid Valves “A and B”, Line Pressure Solenoid Valve, Torque Conv erter Clutch Solenoid Valve and Overrun
Clutch Solenoid Valve
Measure resistance.
• For shift solenoid valve A, refer to AT-142, " Component Inspec-
tion " .
• For shift solenoid valve B, refer to AT-147, " Component Inspec-
tion " .
• For line pressure solenoid valve, refer to AT-138, " Component
Inspection " .
• For torque converter clutch solenoid valve, refer to AT-127, " Com-
ponent Inspection " .
• For overrun clutch solenoid valve, refer to AT-152, " Component
Inspection " .
A/T Fluid Temperature Sensor Measure resistance.
• For A/T fluid temperature sensor, refer to AT-161, " Component
Inspection " .
Line Pressure Relief Valve Springs and To rque Converter Pressure Holding Spring
• Check each spring for damage or deformation. Also measure free length and outer diameter. Refer to AT-374, " Control Valves " .
• Replace springs if deformed or fatigued.
ASSEMBLY SCIA3485E
SAT138D
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AT-286< SERVICE INFORMATION >
REPAIR FOR COMPONENT PARTS
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 (1). Using reamer bolts (F) as guides, install separating plate (2)
as a set.
c. Install pilot filter (1) on control valve upper body (2).
d. Place control valve inter body as shown (side of control valve lower body face up). Install steel balls in their proper positions.
e. Install control valve inter body (1) on control valve upper body (2) using reamer bolts (F) as guides.
CAUTION:
Be careful not to dislocate or drop steel balls. SAT871J
SCIA7010E
SCIA7011E
SAT870J
SCIA7012E
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f. Install check balls (1), line pressure relief valve springs (2) and
torque converter pressure holding spring (3) in their proper posi-
tions in control valve lower body (4).
g. Install bolts (E) from bottom of control valve lower body (1). Using bolts (E) as guides, install separating plate (2) as a set.
h. Install support plates (3) on control valve lower body (1).
i. Install control valve lower body (1) on control valve inter body (2) using reamer bolts (F) as guides, and tighten reamer bolts (F)
slightly.
2. Install O-rings on solenoid valves and terminal body.
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d. Remove reamer bolts (F), and then set oil strainer (1) on control
valve assembly
e. Install and tighten bolts (A), (D), reamer bolts (F) and nuts to the specified torque.
f. Tighten bolts (E) to the specified torque.
Control Valve Upper Body INFOID:0000000004305518
COMPONENTS
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DISASSEMBLY
1. Remove valves at retainer plates. CAUTION:
Do not use a magnetic pick-up tool.
a. Use a suitable tool (A) to remove retainer plates (1).
b. Remove retainer plates (1) while holding spring, plugs (2) or sleeves using a suitable tool (A).
CAUTION:
Remove plugs (2) slowly to prevent internal parts from
jumping out. 19. 3-2 timing valve spring 20. 3-2 timing valve 21. Retainer plate
22. Plug 23. Overrun clutch reducing valve24. Overrun clutch reducing valve
spring
25. Retainer plate 26. Torque converter relief valve spring27. Torque converter relief valve
28. Retainer plate 29. Sleeve 30. Plug
31. Torque converter clutch control valve spring 32. Torque converter clutch
control valve 33. Retainer plate
34. Plug 35. 1-2 accumulator valve spring36. 1-2 accumulator valve