1995 ACURA TL torque

Full Lock-up

Lock-up Control Solenoid Valve A: ON Lock-up Control Solenoid Valve B: ON

When the vehicle speed further increases, throttle B pressure is increased in accordance with the throttle opening.

Throttle B pressure (55) flows to the right side of the lock-up timing valve and the lock-up control valve, and they are moved

to the left side. The lock-up timing valve covers the port leading the torque converter pressure (90) from the torque convert-

er to the lock-up control valve. The lock-up control valve uncovers the port to leak torque converter pressure (94) and (96).

As this takes place, the torque converter back pressure is released fully, causing the lock-up clutch to be engaged fully.

NOTE:

When used, "left" or "right" indicates direction on the hydraulic circuit.

The hydraulic circuit shows '97- '98 models; '96 model is similar.ProCarManuals.com

Description

Lock-up System (cont'd)

Deceleration Lock-up

Lock-up Control Solenoid Valve A: ON Lock-up Control Solenoid Valve B: Duty Operation

The PCM switches solenoid valve B on and off rapidly under certain conditions. The slight lock-up and half lock-up regions

are maintained to lock the torque converter properly.

NOTE:

When used, "left" or "right" indicates direction on the hydraulic circuit.

The hydraulic circuit shows '97 - '98 models; '96 model is similar.ProCarManuals.com

Mainshaft/Countershaft Speed Sensors

Replacement (cont'd)

6. Place a jack under the transmission, and raise the

transmission just enough to take the weight off of the

mounts, then remove the stop holder, the mid mount

stops and the mid mounts.

TRANSMISSION

MID MOUNT NUT

10 x 1.25mm

48 N-m (4.9 kgf-m,

35 Ibfft
STOP HOLDER

(U.S. model only)

MID MOUNT

STOP

(U.S. model onlyf

10 x
1.25
mm

54 N-m

(5.5 kgf-m,

40 Ibf-ft)

7. Lower the transmission with a jack.
8x
1.25
mm

22 N-m

(2.2 kgf-m, 16 Ibf-ft)
MID

MOUNT

MID MOUNT

BRACKET BOLTS

10 x
1.25
mm

38 N-m (3.9 kgf-m,

28 Ibf-ft)

8. Remove the 6 mm bolt from the transmission hous-

ing, and remove the mainshaft and countershaft

speed sensors.

9. Replace the O-rings with new ones before reassem-

bling the mainshaft and countershaft speed sensors.

10. Install the washers on the mainshaft and countershaft

speed sensors, then install them on the transmission

housing.

6x
1.0mm

MAINSHAFT 12 N-m (1.2 kgf-m, 8.7 Ibf-ft)

SPEED SENSOR

WASHER

O-RING

Replace.
COUNTER-

SHAFT

SPEED

SENSOR

O-RING

Replace.

WASHER
11. Raise the transmission with a jack, then install the

mid mounts. Tighten the mid mount bracket bolts,

then tighten the mid mount nuts.

12. Install the transmission beam on the rear transmis-

sion mount bracket/mount, then tighten the three

bolts loosely.

13. Tighten the three transmission beam bolts, then

tighten the two transmission beam bolts to the

specified torque.

14. Install the shift cable guide bracket on the transmis-

sion beam.

6x
1.0mm

TRANSMISSION BEAM 9-8 N-m (1.0 kgf-m,

BOLTS, 2 7.2 Ibfft)

12x1.25 mm

54 N-m (5.5 kgf-m,

40 Ibf-ft)
SHIFT CABLE

GUIDE BRACKET

TRANSMISSION BEAM BOLTS, 3

10 x
1.25
mm

38 N-m (3.9 kgf-m, 28 Ibf-ft)

15. Install the heat shields.

16. Install the exhaust pipe A and the three way catalytic

converter, then install the exhaust pipe A cover.

17. Push the H02S (sensor 2) connector into the vehi-

cle, then secure with the harness grommet.

18. Install the H02S (sensor 2) harness cover.

19. Connect the HO2S (sensor 2) connector.ProCarManuals.com

A/T Gea r Positio n Switc h
Replacemen t (cont'd )
12. Instal l th e A/ T gea r positio n switc h o n th e contro l
shaft , an d tighte n th e bolt s loosely .
6x 1. 0 m m BOLT STighten loosely .
A/T GEA R POSITIO N
SWITC H
CLAM P BRACKE T
CONTRO L SHAF T
13. Instal l a ne w loc k washe r o n th e A/ T gea r positio n
switch b y alignin g it s projecte d ti p wit h th e posi -
tio n mar k o n th e A/ T gea r positio n switc h a s shown .
LOCK WASHE R
LOC K TAB S
LOCKNU T
12N-m(1.2kgf-m ,
8. 7 Ibf-ft )
A/T GEA R POSITIO NSWITCHPROJECTE DTIP
LOC K WASHE RReplace.
CONTRO L
SHAF T6x 1. 0 m m12N-m(1.2kgf-m ,
8. 7 Ibf-ft )
14. Tighte n th e locknu t whil e holdin g th e contro l shaft ,
the n ben d th e loc k tab s agains t th e locknut .
15. Tighte n th e 6 m m bolt s to th e specifie d torque .
16. Instal l th e contro l lever .
CAUTION : Tak e car e no t t o ben d th e shif t cable .
8x 1.2 5 mm16N-m(1.6kgf-m , 1 2 Ibf-ft )
SPRIN G
WASHE R
CONTRO LLEVER
CONTRO L SHAF T
17. Connec t th e A/ T gea r positio n switc h connector , an d
clam p th e harnes s o n th e clam p bracket .
6x 1.0m m12 M m (1.2kgfm ,8.7 Ibf-ft )
CLAMP
SHIF T CABL E
COVER
SHIFT CONTRO L SOLENOI D
VALVE/LINEA R SOLENOI D
HARNES S CONNECTO R
18. Instal l th e shif t cabl e cover , an d instal l th e shif t con -
tro l solenoi d valve/linea r solenoi d harnes s connec -
to r an d th e A/ T gea r positio n switc h harnes s clam p
o n th e shif t cabl e cover , the n tighte n th e bolts .
MARKPOSITIO N
ProCarManuals.com

PROBABLE CAUSE

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40
Low ATF

ATF pump worn or binding

Regulator valve stuck or spring worn

Mainshaft worn/damaged

Shift cable broken/out of adjustment

Secondary drive gear, secondary driven gear,

extension shaft worn/damaged

Countershaft worn/damaged

1st gears worn/damaged (2 gears)

1st clutch defective

2nd gears worn/damaged (2 gears)

2nd clutch defective

Reverse gears worn/damaged (2 gears)

Excessive ATF

Torque converter one-way clutch defective

Parking mechanism defective

Throttle valve stuck

Linear solenoid defective

1-2 shift valve stuck

2-3 shift valve stuck

3-4 shift valve stuck

2nd accumulator defective

3rd accumulator defective

4th accumulator defective

4-3 shift timing valve stuck

Foreign material in main orifice

Foreign material in 1st orifice

Foreign material in 2nd orifice

3-4 orifice control valve stuck

Foreign material in 3rd orifice

Foreign material in 4th orifice

3rd clutch defective

4th clutch defective

Engine output low

Needle bearing worn/damaged

Thrust washer worn/damaged

Clutch clearance incorrect

Drive plate defective or transmission misas-

sembly

2nd check ball stuck

3rd check ball stuck

4th check ball stuck
41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61C96)

61
('97 -'98)

62C97 - '98)

63

64
Torque converter housing or transmission

housing ball bearing worn/damaged

ATF strainer clogged

Joint in shift cable and transmission or body

worn

Modulator valve stuck

Torque converter check valve stuck

Foreign material in separator plate orifice

Lock-up timing valve stuck

Lock-up shift valve stuck

Lock-up piston defective

Lock-up control valve stuck

Shift control solenoid valve A defective

Shift control solenoid valve B defective

Lock-up control solenoid valve A defective

Lock-up control solenoid valve B defective

A/T gear position switch defective

4-3 kick-down valve stuck

1st-hold clutch defective

Reverse clutch defective

1st gear one-way clutch worn/damaged

2nd gear one-way clutch worn/damaged

CPC valve defective

Line pressure control valve defective

Main orifice control valve defective

Mainshaft speed sensor defective

Countershaft speed sensor defective

(cont'd)ProCarManuals.com

Symptom-to-Component Chart

Hydraulic System (cont'd)

The following symptoms can be caused

by improper repair or assembly

Vehicle creeps in position.

Vehicle does not move in or position.

Transmission locks up in position.

Excessive drag in transmission.

Excessive vibration, rpm related.

Main seal pops out.

Various shifting problems.

Harsh upshifts.
Check these items on the

PROBABLE CAUSE DUE TO

IMPROPER REPAIR List

R1,R2

R4

R1

R6

R7

R8

R9, R10

R11
Items on the

NOTES List

K, R

S

PROBABLE CAUSE DUE TO IMPROPER REPAIR

R1

R2

R4

R6

R7

R8

R9

R10

R11
Improper clutch clearance.

Improper gear clearance.

One-way (sprag) clutch installed upside down.

ATF pump binding.

Torque converter not fully seated in ATF pump.

Main seal improperly installed.

Springs improperly installed.

Valves improperly installed.

Check valve balls not installed.ProCarManuals.com

Pressure Testin g — '96 Mode l
While testing , b e carefu l o f th e rotatin g fron t wheels .
Mak e sur e lifts , jack s an d safet y stand s ar e place d
properl y (se e sectio n 1 ).
CAUTION :
Befor e testing , b e sur e th e transmissio n flui d i s fille d
t o th e prope r level .
War m u p th e engin e befor e testing .
1 . Rais e th e fron t o f th e vehicle , an d suppor t i t wit h
safet y stand s (se e sectio n 1 ).
2 . Se t th e parkin g brake , an d bloc k bot h rea r wheel s
securely .
3 . Allo w th e fron t wheel s t o rotat e freely .
4 . War m u p th e engin e (th e radiato r fa n come s on) ,
the n sto p an d connec t a tachometer .
5 . Connec t th e specia l too l t o eac h inspectio n hole .
TORQUE : 1 8 N- m (1. 8 kgf-m , 1 3 Ibf-ft )
CAUTION : Connec t th e oi l pressur e gaug e securely ,
b e sur e no t t o allo w dus t an d othe r foreig n particle s
t o ente r th e inspectio n hole .
A/T OI L PRESSUR E GAUG E
SE T W/PANE L
0740 6 - 002040 0
A/ T LO W PRESSUR E
GAUG E W/PANE L
0740 6 - 007030 0
A/ T PRESSUR E HOSE ,
2210 mm07MAJ-PY4011 A
( 4 Required )
A/ T PRESSUR E HOS E
ADAPTE R07MAJ - PY4012 0
( 4 Required )
NOTE: Th e A/ T Oi l Pressur e Gaug e Se t
(07406-0020003 ) o r A/ T Lo w Pressur e Gaug e
(07406-0070000 ) ma y als o b e used . 6
. Measur e th e respectiv e pressur e a s follows .
Lin e Pressur e
Clutc h Pressur e
Clutc h Low/Hig h Pressur e
Throttl e B Pressur e
7 . Disconnec t th e specia l too l afte r testing .
8 . Instal l th e sealin g bol t wit h a ne w sealin g washe r i n
th e inspectio n hole , an d tighte n t o th e specifie d
torque .
TORQUE : 1 8 N- m (1. 8 kgf-m , 1 3 Ibf-ft )
NOTE : D o no t reus e ol d sealin g washers ; alway s
replac e washers .
Lin e Pressur e Measuremen t
1 . Star t th e engine , an d ru n i t a t 2,00 0 rpm .
2. Shif t t o o r position .
3. Measur e lin e pressure .
NOTE : Highe r pressur e ma y b e indicate d if measure -
ments ar e mad e i n shif t leve r position s othe r tha n
or position .
LINE PRESSUR E
INSPECTIO N HOL E
ProCarManuals.com

Pressure Testin g — '97 - '9 8 Model s
While testing , b e carefu l o f th e rotatin g fron t wheels .
Mak e sur e lifts , jack s an d safet y stand s ar e place d properl y (se e sectio n 1 ).
CAUTION :
Befor e testing , b e sur e th e transmissio n flui d is fille d to th e prope r level .
War m u p th e engin e befor e testing .
1 . Rais e th e fron t o f th e vehicle , an d suppor t i t wit h safet y stands .
2 . Se t th e parkin g brake , an d bloc k rea r wheel s securely .
3 . Allo w th e fron t wheel s t o rotat e freely .
4 . War m u p th e engin e (th e radiato r fa n come s on) , the n sto p an d connec t a tachometer .
5 . Connec t th e specia l too l t o lin e pressur e inspectio n hole .
TORQUE : 1 8 N- m (1. 8 kgfm , 1 3 Ibfft )
CAUTION : Connec t th e oi l pressur e gaug e securely , b e sur e no t t o allo w dus t an d othe r foreig n particle s t o ente r th e
inspectio n hole .
LINE PRESSUR E
INSPECTIO N HOL E
A/ T OI L PRESSUR E GAUG E
SE T W/PANE L
07406-0020400
A/T LO W PRESSUR E
GAUG E W/PANE L
07406-007030 0
A/T PRESSUR E HOS EADAPTE R07MAJ-PY4012 0
( 4 Required )
A/ T PRESSUR E HOSE ,
2210 mm07MAJ-PY4011 A(4 Required )
NOTE: Th e A/ T Oi l Pressur e Gaug e Se t (0740 6 - 0020003 ) o r A/ T Lo w Pressur e Gaug e (0740 6 - 0070000 ) ma y als o b e
used .
ProCarManuals.com