wheel ACURA TL 1995 Service User Guide

A/T Gea r Positio n Switc h
Replacemen t
Make sur e lifts , jack s an d safet y stand s ar e
place d properly , an d hois t bracket s ar e attache d to th e
correc t positio n o n th e engin e (se e sectio n 1 ).
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. Shif t th e transmissio n t o th e position .
4 . Remov e th e shif t cabl e cove r mountin g bolts .
CLAM P
SHIF
T CABL ECOVERCONTRO LLEVER
CONTRO L SHAF T SHIF
T CONTRO L SOLENOI DVALVE/LINEA R SOLENOI DHARNESS CONNECTO R
5. Remov e th e A/ T gea r positio n switc h harnes s clam p
an d th e shif t contro l solenoi d valve/linea r solenoi d
harnes s connecto r fro m th e shif t cabl e cover .
6 . Remov e th e shif t cabl e cove r fro m th e transmissio n
housing .
7 . Remov e th e contro l lever .
8 . Remov e th e locknu t an d loc k washer .
9 . Disconnec t th e A/ T gea r positio n switc h harnes s
connecto r an d harnes s clamp , the n remov e th e A/ T
gea r positio n switc h fro m th e contro l shaft .
10. Se t a ne w A/ T gea r positio n switc h t o th e posi -
tio n a s shown .
NOTE: Th e A/ T gea r positio n switc h click s in th e
position .
POSITIO N MAR K
A/ T GEA R POSITIO N
SWITC H CONTRO
L SHAF T
HOL E
11. Se t th e contro l shaf t t o th e position .
CONTROL SHAF T
(cont'd )
LOCKNU T
LOCK WASHE RReplace.
A/T GEA R POSITIO N
SWITC H
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Set idl e rp m in gea r t o specifie d idl e speed . I f stil l n o good , adjus t moto r mount s a s outline d in engine
sectio n o f servic e manual .
I f th e larg e clutc h pisto n 0-rin g i s broken , inspec t th e pisto n groov e fo r roug h machining .
I f th e clutc h pac k is seize d o r i s excessivel y worn , inspec t th e othe r clutche s fo r wea r an d chec k th e orific e
contro l valve s an d throttl e valv e fo r fre e movement .
I f throttl e valv e is stuck , inspec t th e clutche s fo r wear .
I f th e 1- 2 shif t valv e is stuc k closed , th e transmissio n wil l no t upshift . I f stuc k open , th e transmissio n ha s
n o 1s t gear .
I f th e 4- 3 shif t timin g valv e is stuck , inspec t th e 2n d an d 3r d clutc h pack s fo r wear .
I f th e 3- 4 orific e contro l valv e is stuck , inspec t th e 3r d an d 4t h clutc h pack s fo r wear .
If th e CP C valv e is stuc k closed , th e transmissio n wil l no t shif t ou t o f 1s t gear .
Imprope r alignmen t o f AT F pum p bod y an d torqu e converte r housin g ma y caus e AT F pum p seizure . Th e
symptom s ar e mostl y a n rpm-relate d ticking nois e o r a hig h pitche d squeak .
I f th e AT F straine r i s clogge d wit h particle s o f stee l o r aluminum , inspec t th e AT F pump . I f th e pum p is O K
an d n o caus e fo r th e contaminatio n is found , replac e th e torqu e converter .
If th e 1s t clutc h feedpip e guid e in th e rea r cove r i s score d b y th e mainshaft , inspect th e bal l bearin g fo r
excessiv e movemen t i n th e transmissio n housing . I f OK , replac e th e rea r cove r a s it i s dented . Th e O-rin g
unde r th e guid e is probabl y worn .
Replac e the mainshaf t if th e bushing s for the Islan d 2nd feedpip e are loos e or damaged . If th e 1s t feedpip e
i s damage d o r ou t o f round , replac e it . I f th e 2n d feedpip e is damage d o r ou t o f round , replac e th e rea r cover .
A wor n o r damage d one-wa y (sprag ) clutc h is mostl y a resul t o f shiftin g th e transmissio n in S o r S posi -
tion whil e the wheel s rotat e in reverse , suc h as rockin g the vehicl e in snow.__________________ _
Inspect th e fram e fo r collisio n damage .
Inspec t th e revers e clutc h fo r damag e o r wear .
Inspec t botto m o f 3r d clutc h fo r swir l marks .
Replac e revers e clutc h i f wor n o r damaged . I f transmissio n make s clicking , grindin g o r whirrin g noise , als o
replac e mainshaf t revers e gear , revers e idle r gear , an d countershaf t revers e gear .
I f botto m of 3r d clutc h ha s swir l marks , an d transmissio n make s gea r noise , replac e th e countershaft .
B e ver y carefu l no t t o damag e th e torqu e converte r housin g whe n replacin g th e mai n bal l bearing . Yo u
ma y als o damag e th e AT F pum p whe n yo u torqu e dow n th e AT F pum p body . Thi s wil l resul t i s AT F pum p
seizur e if no t detected . Us e th e prope r tools .
Instal l th e mai n sea l flus h wit h th e torqu e converte r housing . I f yo u pus h it int o th e torqu e converte r
housin g unti l i t bottom s out , i t wil l bloc k th e flui d retur n passag e an d resul t i n damage .
Hars h downshift s whe n coastin g to a sto p wit h zer o throttl e ma y b e cause d b y th e linea r solenoi d no t working .
Adjustin g th e throttl e valv e body , throttl e valve , an d linea r solenoi d is essentia l fo r prope r operatio n o f th e
transmission . No t onl y doe s it affec t th e shif t qualit y i f misadjusted , bu t als o th e lock-u p clutc h operation .
A
B
C
D
E
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
V
Flush th e AT F coole r an d coole r lin e (se e flushin g procedur e in th e '95 - '98 Acur a 2.5TL Servic e Manual ,
61SW504) .
NOTES
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Road Tes t
NOTE : War m u p th e engin e t o norma l operatin g temperatur e (th e radiato r fa n come s on) .
1. Appl y parkin g brak e an d bloc k th e wheels . Star t th e engine , the n shif t t o positio n whil e depressin g th e brak e pedal .
Depres s th e accelerato r peda l an d releas e it suddenly . Th e engin e shoul d no t stall .
2. Repea t sam e tes t i n position .
3. Tes t driv e th e vehicl e o n th e fla t roa d in position . Chec k tha t th e shif t point s occu r a t th e approximat e speed s show n
o n th e nex t page . Als o chec k fo r abnorma l nois e an d clutc h slippage .
NOTE : Throttl e positio n senso r voltag e represent s th e throttl e opening .
-1 . Remov e th e PC M cove r t o expos e th e PC M fo r roa d testing ; refe r t o pag e 14-6 6 an d 14-67 .
-2 . Se t th e digita l multimete r t o chec k voltag e betwee n D 6 (+ ) termina l an d A2 6 (- ) termina l o f th e PC M fo r th e throttl e
positio n sensor .
NOTE : Refe r t o pag e 14-66 ; Ho w to us e th e Backprob e Set .
SR S component s ar e locate d i n thi s area . Revie w th e SR S componen t locations , precautions , an d procedure s i n th e SR S
( sectio n 24 ) befor e performin g repair s o r service .
DIGITAL MULTIMETE R
(Commerciall y available )
KS - AH M - 32 - 003 ,or equivalen t
STACKIN G PATC H
CORDS
BACKPROB EADAPTER
BACKPROB E SE T07SAZ-001000 A
(tw o required )
v
A26 Termina l D
6 Termina lPCM
PC M CONNECTOR S
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Stall Speed

Test

CAUTION:

To prevent transmission damage, do not test stall speed for more than 10 seconds at a time.

Do not shift the lever while raising the engine speed.

Be sure to remove the pressure gauge before testing stall speed.

1. Engage the parking brake, and block the front wheels.

2. Connect a tachometer to the engine, and start the engine.

3. Make sure the A/C switch is OFF.

4. After the engine has warmed up to normal operating temperature (the radiator fan comes on), shift into [2] position.

5. Fully depress the brake pedal and accelerator for 6 to 8 seconds, and note engine speed.

6. Allow two minutes for cooling, then repeat the test in , , and positions.

NOTE:

• Stall speed tests should be used for diagnostic purposes only.

• Stall speed should be the same in , and positions.

Stall Speed RPM:

Specification: 2,000 rpm

Service Limit: 1,850 - 2,150 rpmProCarManuals.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
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• Clutch Pressur e Measuremen t
Whil e testing , b e carefu l o f th e rotatin g fron t wheels .
1 . Star t th e engine , an d ru n i t a t 2,00 0 rpm .
2 . Shif t t o eac h shif t leve r positio n indicate d b y th e tabl e below .
3 . Measur e eac h clutc h pressure .
1ST CLUTC H PRESSUR EINSPECTIO N HOL E
4TH CLUTC H PRESSUR EINSPECTIO N HOL E
3RD CLUTC H PRESSUR EINSPECTIO N HOL E
REVERS E CLUTC HPRESSUR E INSPECTIO NHOLE
1ST-HOL D CLUTC HPRESSUR E INSPECTIO NHOLE
2ND CLUTC H PRESSUR EINSPECTIO N HOL E
PRESSUR E
Line
1s t clutc h
1st-hol d
clutc h
2n d clutc h
2n d clutc h
3r d clutc h
4t h clutc h
Revers e
clutch SHIF
T LEVE R
POSITIO N
or
, or
or
SYMPTO M
No (o r low )
line pressur e
No o r lo w 1s t
pressur e
No o r lo w 1st -
hold pressur e
No o r lo w 2n d
pressur e
No o r lo w 2n d
pressur e
No o r lo w 3r d
pressur e
No o r lo w 4t h
pressur e
No o r lo w
Revers e
pressur e
PROBABL E CAUS E
Torqu e converter ,
AT F pump , pres -
sur e regulator ,
torqu e converte r
chec k valv e
1s t Clutc h
1st-hol d Clutc h
2n d Clutc h
2n d Clutc h
3r d Clutc h
4t h Clutc h
Revers e
Clutch
FLUID PRESSUR E
Standard
780 - 84 0 kP a
(8.0 - 8. 6 kgf/cm2,
110-120psi )
390 kP a
(4.0 kgf/cm2, 5 7 psi )
Full y close d throttl e
840 kP a
(8.6 kgf/cm2, 12 0 psi )
Mor e tha n 1/ 4 throttl e
1,170- 1,250 kPa
(11. 9 -12. 7 kgf/cm2,
169-18 1 psi )
Servic e Limi t
740 kP a
(7.5 kgf/cm2, 11 0 psi )
370 kP a
(3.8 kgf/c r
Full y clo s
740 kP a
(7.5 kgf/c r
Mor e tha r
n2, 5 4 psi )
3d throttl e
n2, 11 0 psi )
i 1/ 4 throttl e
1,130kP a
(11. 5 kgf/cm2, 16 4 psi )
(cont'd )
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Pressure Testing — '96 Model

3. Slowly depress the accelerator pedal to increase

engine rpm until pressure is indicated on the pres-

sure gauge. Then release the accelerator pedal,

allowing the engine return to an idle, and measure

the pressure reading.
4. With the engine idling, depress the accelerator

pedal approximately 1/2 of its possible travel, and

increase the engine rpm until pressure is indicated

on the gauge. Then measure the highest pressure

reading obtained.

5. Repeat steps 3 and 4 for each clutch pressure being

inspected.

4TH CLUTCH PRESSURE

INSPECTION HOLE

3RD CLUTCH PRESSURE

INSPECTION HOLE

2ND CLUTCH PRESSURE

INSPECTION HOLE

PRESSURE

2nd Clutch

3rd Clutch

4th Clutch
SHIFT LEVER

POSITION
SYMPTOM

No or low 2nd

pressure

No or low 3rd

pressure

No or low 4th

pressure
PROBABLE CAUSE

2nd Clutch

3rd Clutch

4th Clutch
FLUID PRESSURE

Standard

390
-
840
kPa

(4.0 - 8.6 kgf/cm2,

57-120psi)

varies with throttle

opening
Service Limit

370 kPa

(3.8 kgf/cm2, 54 psi)

with accelerator

pedal released

740 kPa

(7. 5 kgf/cm2, 110 psi)

with more than 1/4

throttle
1. Start the engine, and let it idle.
(cont'd)

Clutch Low/High Pressure Measurement

2. Shift to position.
front wheels.
While testing, be careful of the ratatingProCarManuals.com

Throttle B Pressure Measurement

While testing, be careful of the rotating

front wheels.

1. Disconnect the transmission sub-harness connector

(14P).

2. Start the engine, and run it at 1,000 rpm.

3. Measure fully-opened throttle B pressure.

4. Connect battery voltage to the linear solenoid termi-

nals of the transmission sub-harness connector as

shown.

5. Measure fully-closed throttle B pressure.
TRANSMISSION SUB-HARNESS

CONNECTOR (14P)

Terminal side of

male terminals

THROTTLE B PRESSURE

INSPECTION HOLE

PRESSURE

Throttle B
SHIFT LEVER

POSITION
SYMPTOM

Pressure too

high

No or low

pressure
PROBABLE CAUSE

Throttle Valve

Body/Linear

Solenoid

Assembly
FLUID PRESSURE

Standard

0-15kPa

(0-0.15kgf/cm2,

0-2
psi)

Fully closed throttle

580
-
630
kPa

(5.9 - 6.4 kgf/cm2,

84-91 psi)

Fully opened throttle
Service Limit

540 kPa

(5.5 kgf/cm2, 78 psi)

Fully opened throttle

14-117ProCarManuals.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 .
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Lower Valv e Bod y Assembl y
Removal/Installatio n
Make sur e lifts , jack s an d safet y stand s ar e
place d properly , an d hois t bracket s ar e attache d to th e
correc t positio n o n th e engin e (se e sectio n 1 ).
SEALIN G WASHE RReplace.
DRAIN PLU G18 x 1. 5 m m49 N- m (5. 0 kg f m , 3 6 Ibf-ft )
5. Remov e th e shif t cabl e cove r mountin g bolts , the n
remov e th e A/ T gea r positio n switc h harnes s clam p
an d th e shif t contro l solenoid/linea r solenoi d har -
nes s connecto r fro m th e shif t cabl e cover .
6x 1.0m m12N-m(1.2kgf-m ,8.7 Ibf-ft )
SHIF T CABL E
COVER
SHIFT CONTRO L SOLENOI D
VALVE/LINEA R SOLENOI D
HARNES S CONNECTO R
6. Remov e th e shif t cabl e cove r fro m th e transmissio n
housing.
7. Disconnec t th e shif t contro l solenoid/linea r solenoi d
harnes s connector . 8
. Remov e th e shif t contro l solenoid/linea r solenoi d
harnes s connecto r stop .
, . .12 N- m ( 1. 2 kg f -m ,8.7 Ibf-ft )
CONNECTO R STO P
DOWE L PI N
O-RIN G
Replac e
O-RINGReplac e
DOWEL PI N DOWE
L PI N
LOWE R VALV E
BOD Y ASSEMBL Y
6x 1.0m m12N-m(1.2kgf-m ,
8. 7 Ibf-ft )
AT F STRAINE R
6x 1. 0 m m12 N- m (1.2 kgf-m ,
8. 7 Ibf-ft )
AT F PA N GASKE T
Replace .
DOWEL PI N
AT F PA N
6x 1.0m m12N-m(1.2kgf-m ,
8. 7 Ibf-ft )
9. Remov e th e AT F pa n (1 4 bolts) .
10 . Remov e th e AT F straine r (thre e bolts) .
11 . Remov e th e lowe r valv e bod y assembl y (si x bolts )
whil e pushin g th e connecto r ou t o f th e transmissio n
housing .
12 . Clea n th e inle t openin g o f th e AT F straine r
thoroughl y wit h compresse d air , the n chec k tha t i t i s
in goo d condition , an d th e inle t openin g i s no t
clogged .
13. Replac e th e AT F straine r i f i t i s clogge d o r dam -
aged.
NOTE : Th e AT F straine r ca n b e reuse d i f i t i s no t
clogged .
14 . Instal l th e lowe r valv e bod y assembly in th e revers e
orde r o f removal .
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. Shif t th e transmissio n t o th e position .
4 . Remov e th e drai n plug , an d drai n th e automati c
transmissio n flui d (ATF) . Reinstal l th e drai n plu g
wit h a ne w sealin g washer .
CLAMP
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