Control Valve Assembly
Control Valve AssemblyAT-264 Components:
DISASSEMBLY
Place control valve assembly with control valve upper body (1) side down. Remove bolts (A) to (G), reamer bolts (F), nuts and support plates (4) according to the following procedures. Separate control valve upper body (1), control valve inter body (2) and control valve lower body (3).
1. Remove bolts (A), (D), reamer bolt (F) and nut, and remove oil strainer (1) from control valve assembly.
2. Remove bolts (A), (C) and (G), and then remove solenoid valve assembly (1) from control valve assembly.
3. Remove O-rings from solenoid valves and terminal body.
4. Place control valve upper body face down, and remove bolts (B), reamer bolt (F) and nut.
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 (1) from control valve inter body (2).
(3): Control valve upper body
6. Turn over control valve lower body (1).
7. Remove bolts (E), support plates (2) and separating plate (3) from control valve lower body (1).
8. Remove check balls (1), line pressure relief valve springs (2) and torque converter pressure holding spring (3) from control valve lower body (4).
CAUTION: Be careful not to lose check balls (1), line pressure relief valve springs (2) and torque converter pressure holding spring (3).
9. Remove control valve inter body from control valve upper body.
10. Remove pilot filter (1) from control valve upper body (2).
11. Remove separating plate from control valve upper body (2).
12. 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.
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 control valve lower body.
^ Check to see that retainer plates are properly positioned in control 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.
^ For shift solenoid valve A, refer to AT-137, "Component Inspection". P0750
^ For shift solenoid valve B, refer to AT-142, "Component Inspection". P0755
^ For line pressure solenoid valve, refer to AT-133, "Component Inspection". P0745
^ For torque converter clutch solenoid valve, refer to AT-122, "Component Inspection". P0740
^ For overrun clutch solenoid valve, refer to AT-147, "Component Inspection". P1760
A/T Fluid Temperature Sensor
Measure resistance.
^ For A/T fluid temperature sensor, refer to AT-156, "Component Inspection". DTC Batt/Fluid Temp SEN (A/T Fluid Temp Sensor Circuit and TCM Power Source)
Line Pressure Relief Valve Springs and Torque Converter Pressure Holding Spring
^ Check each spring for damage or deformation. Also measure free length and outer diameter. Refer to AT-343, "Control Valves". Control Valves
^ 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 (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 in figure (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.
f. Install check balls (1), line pressure relief valve springs (2) and torque converter pressure holding spring (3) in their proper positions 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.
3. Install and tighten bolts.
(1): Control valve upper body
(2): Control valve inter body
(3): Control valve lower body
(4): Support plate
a. Install and tighten bolts (B) to the specified torque.
Tightening torque: 7.84 Nm (0.80 kg-m, 69 in-lb)
b. Install solenoid valve assembly (1) on control valve assembly.
c. Tighten bolts (A), (C) and (G) to the specified torque.
Tightening torque: 7.84 Nm (0.80 kg-m, 69 in-lb)
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.
Tightening torque: 7.84 Nm (0.80 kg-m, 69 in-lb)
f. Tighten bolts (E) to the specified torque.
Tightening torque: 3.92 Nm (0.40 kg-m, 35 in-lb)