Page 105 of 2389
AT3603
SpringFree length mm (in.)Coil outer diameter
mm (in.)Total No. of coils
Color
Second coast modulator valve 27.5 (1.083)
8.9 (0.350)
14.6 Brown
B
1 orifice control valve24.8 (0.976)
8.0 (0.315)
12.0
White
Down-shift plug29.8 (1.173)
8.7 (0.343)
13.5
Yellow
Throttle valve 30.7 (1.209) 9.2 (0.362)
9.5 Purple
Throttle modulator valve 21.7 (0.854)
9.5 (0.374)
9.5
Orange
Cut-back valve21.8 (0.858)
6.0 (0.236)
13.5
Red
No. 1 accumulator control valve 28.1 (1.106)
10.6 (0.417)
13.0
Yellow
Lock-up relay valve26.6 (1.047)
10.2 (0.402)
11.5 Green
SPECIFICATIONS OF VALVE BODY SPRINGS
HINT: During reassembly please refer to the spring specifications above to help discriminate the different
springs.
SECTIONAL VIEW OF VALVE BODY
AT-90- AUTOMATIC TRANSAXLEComponent Parts (Valve Body)
Page 106 of 2389
11.5
(0.453)5.0
(0.197)3.2
(0.126) B1 orifice control valve6.5
(0.256)5.0
(0.197)3.2
(0.126) No. 1 accumulator control valve9.2
(0.362)5.0
(0.197)3.2
(0.126) Cut-back valve5.0
(0.197)3.2
(0.126) 6.5
(0.256) Second coast modulator valve6.5
(0.256)5.0
(0.197)3.2
(0.126) Throttle modulator valve6.5
(0.256)5.0
(0.197)3.2
(0.126) Lock-up relay valveRetainerHeightWidthThickness
mm (in.)
AT3478 AT3479
Pin Valve
Vibrating
Stopper (Upper Side)
(Lower Side)
AT3480AT3481
LOCATION OF RETAINERS, PIN, STOPPER, CHECK BALL AND STRAINER
1. RETAINER, STOPPER AND PIN
3. STRAINER
2. CHECK BALL
- AUTOMATIC TRANSAXLEComponent Parts (Valve Body)AT-91
Page 107 of 2389
(Lower Valve Body)
COMPONENTS
AT4502
AT3483
Retainer Plug3 - 4 Shift Valve PlugRetainer PlugRetainer PlugNo. 2 Accumulator
Control Valve Retainer
2nd lock ValveCheck Ball Secondary Regulator ValveCheck Valve
Oil Strainer Pressure Relief ValveCheck Ball
Plunger Sleeve
The line pressure changes
according to the part of
the plunger sleeve which
comes into contact with
the retainer.
When reassembling the
valve body, position the
retainer in the same
position.
Retainer PlugPlunger RetainerRetainer Shift Valve Plug PlugPrimary Regulator
Valve Plate Washer 2 - 3 Shift Valve Retainer1 - 2 Shift Valve Low Coast Modulator Valve
AT-92- AUTOMATIC TRANSAXLEComponent Parts (Valve Body)
Page 108 of 2389
SpringFree length mm (in.)Coil outer diameter
mm (in.)Total No. of coils Color
Pressure relief valve11.2 (0.441) 6.4 (0.252)
7.5
None
Check valve19.9 (0.783) 11.0 (0.433)
8.5 None
Secondary regulator valve38.5 (1.516) 8.4 (0.331)
17.0
Purple
No. 2 accumulator control valve23.0 (0.906)6.3 (0.248)
12.0 Gray
Second lock valve20.7 (0.815) 6.1 (0.240)
12.0 Orange
3 - 4 shift valve29.2 (1.150) 8.9 (0.350)
12.0Light Green
Low coast modulator valve20.2 (0.795) 7.9 (0.311)
11.9 Purple
1 - 2 shift valve29.2 (1.150) 8.9 (0.350)
12.0Light Green
2 - 3 shift valve28.0 (1.102)9.4 (0.370)
10.3 None
Primary regulator valve64.2 (2.528)
18.6 (0.732)
12.5
None
SPECIFICATIONS OF VALVE BODY SPRINGS
HINT: During reassembly please refer to the spring specifications above to help discriminate the different
springs.
SECTIONAL VIEW OF VALVE BODY
AT3604
- AUTOMATIC TRANSAXLEComponent Parts (Valve Body)AT-93
Page 109 of 2389
6.5
(0.256)5.0
(0.197)3.2
(0.126) 3 - 4 shift valve5.0
(0.197) 9.2
(0.362)3.2
(0.126) 2 - 3 shift valve6.5
(0.256)5.0
(0.197)3.2
(0.126) 1 - 2 shift valve3.2
(0.126) 11.5
(0.453)5.0
(0.197) Low coast modulator valve11.5
(0.453)5.0
(0.197)3.2
(0.126) Second lock valve9.2
(0.362)5.0
(0.197)3.2
(0.126) No. 2 accumulator control valve3.2
(0.126) 15.0
(0.591)5.0
(0.197) Secondary regulator valve5.0
(0.197)3.2
(0.126) 9.2
(0.362) Primary regulator valveHeight Width
Thickness Retainer
mm (in.)
AT3485 AT3484
(Lower Side)
(Upper Side)
AT4501
AT3487
LOCATION OF RETAINERS, CHECK BALLS AND STRAINERS
1. RETAINER
2. CHECK BALL
3. STRAINER
AT-94- AUTOMATIC TRANSAXLEComponent Parts (Valve Body)
Page 110 of 2389
AT3490 AT3491
No. 1 GasketNo. 2 Gasket
AT3474 AT3489
No. 2
Gasket
No. 1 Plate
No. 1
Gasket
(Assembly of Valve Body)
(See page AT-85)
1. POSITION NO. 1 PLATE AND NEW GASKETS ON
UPPER VALVE BODY
Position new No. 1 gasket, No. 1 plate and then new
No. 2 gasket on the upper valve body.
HINT: Since No. 1 gasket and No. 2 gasket are similar,
use the illustration below to discriminate between them.
2. PLACE UPPER VALVE BODY WITH NO. 1 PLATE
AND GASKETS ON LOWER VALVE BODY
Hold the upper valve body, No. 1 plate and gaskets
securely so they do not separate.
Align each bolt hole in the valve bodies with the
gaskets and plate.
AT3475
3. INSTALL AND FINGER TIGHTEN BOLTS IN UPPER
VALVE BODY TO SECURE LOWER VALVE BODY
Install and finger tighten the three bolts.
HINT: Each bolt length (mm, in.) is indicated in the
figure.
- AUTOMATIC TRANSAXLEComponent Parts (Valve Body)AT-95
Page 111 of 2389
AT3469
AT3468
AT3472AT3473
4. INSTALL LOCK-UP RELAY VALVE SLEEVE STOPPER
5. INSTALL UPPER VALVE BODY COVER GASKETS,
PLATE AND THROTTLE MODULATOR OIL STRAINER
(a) Position a new gasket and plate and then another
new gasket
HINT: Both gaskets are same one.
(b) Install the oil strainer onto the gasket.
6. INSTALL UPPER VALVE BODY COVER
(a) Position the upper valve body cover.
(b) Install and finger tighten the eleven bolts.
HINT: Each bolt length (mm, in.) is indicated in the figure.
AT3467
7. INSTALL AND FINGER TIGHTEN BOLT IN LOWER
VALVE BODY
HINT: Bolt length (mm, in.) is indicated in the figure.
8. INSTALL CHECK BALLS
Install the two check balls into the lower valve body.
Oil Strainer
Gasket
Plate
Gasket
AT-96- AUTOMATIC TRANSAXLEComponent Parts (Valve Body)
Page 112 of 2389
AT3471
GasketPlate Gasket
AT3470
AT3492
AT3466
CylinderSpringPiston O-Ring
AT3493
9. INSTALL LOWER VALVE BODY COVER GASKETS
AND NO. 2 PLATE
Position a new gasket and plate and then another new
gasket.
HINT: Both gaskets are same one.
10. INSTALL LOWER VALVE BODY COVER
(a) Position the lower valve body cover.
(b) Install and finger tighten the twelve bolts.
HINT: Each bolt length (mm, in.) is indicated in the figure.
11. TIGHTEN BOLTS OF UPPER AND LOWER VALVE
BODIES
(a) Tighten the thirteen bolts in the lower valve body.
Torque: 67 kg-cm (58 in.-lb, 6.6 N-m)
(b) Tighten the fourteen bolts in the upper valve body.
Torque: 67 kg-cm (58 in.-lb, 6.6 N-m)
12. INSTALL B
0 ACCUMULATOR ASSEMBLY
(a) Coat new O-rings with ATF and install them to
the piston.
(b) Insert the spring and piston into the cylinder.
- AUTOMATIC TRANSAXLEComponent Parts (Valve Body)AT-97