A750 A761E Vac Locations

A750-A761E Vaclocations A750-A761E_VacLocations A750-A761E_VacLocations 120 pdf pdf uploads sonnax-dev

A750-A761E Vaclocations A750-A761E_VacLocations A750-A761E_VacLocations 484 file tech_resource uploads sonnax-dev

: Sonnax A750-A761E Vaclocations A750-A761E_VacLocations 490 file tech_resource uploads

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Zip Kit® A750E-A761E-ZIP
Available for this unit.

Toyota A750E/F, A760E/F/H, A761E

TIME TESTED • INDUSTRY TRUSTED

Critical Wear Areas & Vacuum Test Locations

20

15

10

25

Note: OE valves are shown in rest position and should be tested in rest position unless otherwise indicated. Test locations are pointed
to with an arrow. Springs are not shown for visual clarity. Low vacuum reading indicates wear and Sonnax parts noted for replacement.
For specific vacuum test information, refer to individual part instructions included in kits and available at www.sonnax.com.

5

0
30
VACUUM
TEST

A750 Series • Lower Valve Body
22

Block valve outboard with
.218" dia. checkball.

1

7
10

16

15
11

2

21

Upper Valve Body
Block valve outboard with
.218" dia. checkball.
Seal port
on back.

17

18

Seal port
on back.

15

23

Test
together.

See page 3 for test
area IDs, transmission
symptoms and
recommended repairs.

5

12

4

24
Block valve outboard with
.218" dia. checkball.

15

8

19

Seal port
on back.

Upper Valve Body No. 2

15

3

6
25

©2014 Sonnax Industries, Inc.
800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com

9

Inset: View of reverse
side of upper valve
body. Similar location
on A760 series.
A750-A761E_VacTestLocations 01-30-14
Page 1

Zip Kit® A750E-A761E-ZIP
Available for this unit.

Toyota A750E/F, A760E/F/H, A761E

TIME TESTED • INDUSTRY TRUSTED

Critical Wear Areas & Vacuum Test Locations

20

15

10

25

Note: OE valves are shown in rest position and should be tested in rest position unless otherwise indicated. Test locations are pointed
to with an arrow. Springs are not shown for visual clarity. Low vacuum reading indicates wear and Sonnax parts noted for replacement.
For specific vacuum test information, refer to individual part instructions included in kits and available at www.sonnax.com.

5

0
30
VACUUM
TEST

A760 Series • Lower Valve Body
Block valve inboard with
.218" dia. checkball.

20
1

16

14

2

Upper Valve Body
Seal port
on back.

19

22
18

17

21

14

14

Test together.

5

See page 3 for test
area IDs, transmission
symptoms and
recommended repairs.

4

13

8
14

Seal port
on back.

7

Seal port
on back.

Lower Valve Body No. 2
12

14

3

14

Upper Valve Body No. 2

11

24

6

10

©2014 Sonnax Industries, Inc.
800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com

21

14

26
A750-A761E_VacTestLocations 01-30-14
Page 2

Toyota A750E/F, A760E/F/H, A761E

Zip Kit® A750E-A761E-ZIP
Available for this unit.

TIME TESTED • INDUSTRY TRUSTED

Click on Sonnax part numbers to see more information.
1. Primary Regulator Valve
• Low/High line pressure • Clutch/Brake failure
• Soft/Harsh shifts • Low converter pressure

10. Accumulator Control Valve
• Shift complaints
• Shift codes

• Harsh shifts

Replace with Sonnax Part No. 147741-04K
Requires F-147741-TL4 & VB-FIX

Replace with Sonnax Part No. 147741-24K
Requires 147741-TL24

2. Boost Assembly

11. A
 ccumulator Control
Plunger Valve & Sleeve

• Insufficient line rise • Soft/Harsh shifts
• High reverse pressure • Clutch/Brake failure
Replace with Sonnax Part No. 147741-01K

3. L
 ockup Relay Valve
•C
 onverter apply/release complaints/codes
• Burned converter
Replace with Sonnax Part No. 147741-07K
Requires F-147741-TL7 & VB-FIX

4. Secondary Regulator Valve
• Converter apply/release complaints
• Harsh lockup • Lube-related failures

• Shift complaints • Harsh shifts
• Shift codes
Replace with Sonnax Part No. 147741-35K

12. Brake Control Valve
• Shift complaints • Harsh shifts
• Flares • Burnt brakes
Replace with Sonnax Part No. 147741-28K
Requires F-147741-TL28 & VB-FIX

13. B2 Accumulator Pistons
• Harsh/Slipping 5-6 shifts
• Harsh 3-2 downshifts

Replace with Sonnax Part No. 147741-10K
Requires F-147741-TL4 & VB-FIX

Replace with Sonnax Part No.

5. B1 Accumulator Piston

14. & 15. End Plugs

• 4-5 Shift complaints (A750 Series)
• 4-5, 5-6 Shift complaints (A760 Series)
Replace with Sonnax Part No. 57917E-19K

6. Solenoid Modulator Valve
• Solenoid codes • TCC slip/RPM cycling
• Shift complaints • Low cooler flow
Replace with Sonnax Part No. 147741-05K
Requires F-147741-TL5 & VB-FIX

7. Clutch Control Valve
• Harsh up/down shifts • Flare upshifts
• Gear ratio/solenoid codes
Replace with Sonnax Part No.
147741-22K
A750 Series
147741-14K
A760 Series
Requires F-147741-TL22 or F-147741-TL14 & VB-FIX

8. Lockup Control Valve
• Harsh downshifts • RPM surge on coast
• TCC apply/release complaints
Replace with Sonnax Part No. 147741-16K
Requires F-147741-TL16 & VB-FIX

9. L
 ockup Control Plunger
Valve & Sleeve

147741-13

	Various complaints depending on
locations of leaking end plug.
14. Replace with Sonnax Part No. 147741-30K
15. Replace with Sonnax Part No. 147741-31K

16. SLT Damper
• Harsh/Soft shifts
• Loss of pressure control

17.
18.
19.
20.
21.
22.
23.
24.

1-2 Shift Valve
2-3 Shift Valve
3-4 Shift Valve
4-5 Shift Valve
Clutch Apply Control Valve
Sequence Valve
Clutch Lock Valve
B1 Apply Control Valve
& Assembly
25. Coast Brake Relay Valve
26. C3 Apply Relay Valve
• Related shift complaints
• Burnt clutches/brakes

• Harsh downshifts • RPM surge on coast
• TCC apply/release complaints
Replace with Sonnax Part No. 147741-37K
©2014 Sonnax Industries, Inc.
800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com

A750-A761E_VacTestLocations 01-30-14
Page 3

Zip Kit® A750E-A761E-ZIP
Available for this unit.

Toyota A750E/F, A760E/F/H, A761E

TIME TESTED • INDUSTRY TRUSTED

OE Exploded View
A750 Valve Body 			

Note: Depending upon vehicle application, the OE springs shown may not be present.

Filter
Upper
Valve Body
No. 2

101

301
Lower
Valve Body

Check
Valve

104

107

106

201

102

105

103

A750 Series Valve Body Descriptions

I.D. No.
101

Manual Valve

102

SLT Damper

103

Primary Regulator Valve (inboard)
Boost Assembly (outboard)

104

Clutch Control Valve

105

Clutch Apply Control Valve

106

Accumulator Control Valve (inboard)
Accumulator Control Plunger Valve
& Sleeve (outboard)

107

Sequence Valve

201

Solenoid Modulator Valve

202

Clutch Lock Valve

203

B1 Accumulator Piston

204

Secondary Regulator Valve

205

Lockup Relay Valve

206

Lockup Control Valve (inboard)
Lockup Control Plunger Valve
& Sleeve (outboard)

207

C3 Check Valve

208

3-4 Shift Valve

209

Brake Control Valve

210

2-3 Shift Valve

211

1-2 Shift Valve

212

B1 Apply Control Valve (inboard)
B1 Apply Control Plunger Valve &
Sleeve (outboard)

301

Coast Brake Relay Valve

202

Upper
Valve Body

203

207
209

212

211 210

208

206
205

204

©2014 Sonnax Industries, Inc.
800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com

Description

A750-A761E_VacTestLocations 01-30-14
Page 4

Zip Kit® A750E-A761E-ZIP
Available for this unit.

Toyota A750E/F, A760E/F/H, A761E

TIME TESTED • INDUSTRY TRUSTED

OE Exploded View
A760 Valve Body

Note: Depending upon vehicle application, the OE springs shown may not be present.

304

302
301

Upper
Valve Body

303

Upper
Valve Body
No. 2

401

305

A760 Series Valve Body Descriptions

I.D. No.

311

309

308

314
313

307

312

306

310
Filter

201
Lower
Valve Body

102

104
101

Check
Valve

103

202
204

Lower
Valve Body
No. 2

105

©2014 Sonnax Industries, Inc.
800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com

203

Description

101

Brake Control Valve

102

Accumulator Control Valve (inboard)
Accumulator Control Plunger Valve
& Sleeve (outboard)

103

SL1 Relay Valve

104

B1 Apply Relay Valve

105

Solenoid Modulator Valve

201

Manual Valve

202

SLT Damper

203

Primary Regulator Valve (inboard)
Boost Valve Assembly (outboard)

204

4-5 Shift Valve

301

B2 Accumulator Piston

302

Reverse Sequence Valve

303

Clutch Control Valve

304

Clutch Apply Relay Valve

305

B1 Accumulator Piston

306

Secondary Regulator Valve

307

Lockup Relay Valve

308

Lockup Control Valve (inboard)
Lockup Control Plunger Valve
& Sleeve (outboard)

309

C3 Check Valve

310

1-2 Shift Valve

311

B4 Check Valve

312

2-3 Shift Valve

313

3-4 Shift Valve

314

B2 Accumulator Piston

401

C3 Apply Relay Valve

A750-A761E_VacTestLocations 01-30-14
Page 5



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