Test ACURA TL 1995 Service Repair Manual
[x] Cancel search | Manufacturer: ACURA, Model Year: 1995, Model line: TL, Model: ACURA TL 1995Pages: 1771, PDF Size: 62.49 MB
Page 70 of 1771
Cylinder Head s
Illustrate d Inde x
CAUTION :
To avoi d damage , wai t unti l th e engin e coolan t temperatur e drop s belo w 100° F (38°C ) befor e removin g a cylinde r
head.
When handlin g a meta l gasket , tak e car e no t t o fol d it o r damag e th e contac t surface .
NOTE: Us e ne w O-ring s an d gasket s whe n reassembling .
6 x 1. 0 m m12 N- m (1. 2 kgf-m ,8.7 Ibf-ft )
RIGHT CAMSHAF T
PULLE Y
8 x 1.2 5 mm31 N- m (3. 2 kgf-m ,23 Ibf-ft )
6 x 1. 0 m m12 N- m (1. 2 kgf-m ,8.7 Ibf-ft ) ENGIN
E OI L TEMPERATUR E
SWITC H
2 7 N- m (2. 8 kgf-m ,
2 0 Ibf-ft )
Testing , pag e 8- 6HEA D COVE R GASKE TReplace whe n leaking , damage dor deteriorated .Apply liqui d gaske t a t th e fou r corner sof th e recesses , pag e 6-3 6
CYLINDE R HEA D COVE R
Refe r t o pag e 6-3 6 whe n
installing .
RUBBER SEAL S
Replac e whe n damage d
or deteriorated .
GROMMET
6 x 1. 0 m m12 N- m (1. 2 kgf-m ,
8. 7 Ibf-ft ) RUBBE
R SEA L
Replac e whe n damage dor deteriorated .
LEFT BAC K COVE R
8 x 1.2 5 mm31 N- m (3. 2 kgf-m , 2 3 Ibf-ft )6 x 1. 0 m m12 N- m (1. 2 kgf-m , 8. 7 Ibf-ft )
LEFT CAMSHAF T
PULLE Y CKP/CY
P
SENSO R
RIGH
T BAC K
COVE R O-RIN
G
Replace .
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Page 130 of 1771
Oil Pressur e Engin
e Oi l Temperatur e Switc h
Testin gTestin g
If th e oi l pressur e warnin g ligh t stay s o n wit h th e engin e
running , chec k th e engin e oi l level . I f th e oi l leve l i s cor -
rect :
1 . Connec t a tachometer .
2 . Remov e th e engin e oi l pressur e switc h an d instal l
a n oi l pressur e gauge .
3 . Star t th e engine . Shu t i t of f immediatel y i f th e
gaug e register s n o oi l pressure . Repai r th e proble m
before continuing .
4. Allo w th e engin e to reac h operatin g temperatur e (fa n
come s o n a t leas t twice) . Th e pressur e shoul d be :
Engin e Oi l Temperature : 176° F (80°C )
Engin e Oi l Pressure :
A t Idle : 7 0 kP a (0. 7 kgf/cm
2,1 0 psi )
minimu m
At 3,00 0 rpm : 34 0 kP a (3. 5 kgf/cm2,5 0 psi )
minimu m
• I f oi l pressur e i s withi n specifications , replac e th e
oi l pressur e switc h an d recheck .
• I f oi l pressur e i s NO T withi n specifications , inspec t
th e oi l pum p (se e pag e 8-12 ).
ADAPTE R(1/8"-28 BSPT )
ENGIN E OI L PRESSUR ESWITCH MOUNTIN GHOLE
OIL PRESSUR E
GAUG E
1. Remov e th e engin e oi l temperatur e switc h fro m th e
righ t cylinde r hea d cove r (se e pag e 6-12 ).
2 . Suspen d th e engin e oi l temperatur e switc h in a con -
taine r o f engin e oi l a s shown .
ENGINE OI LTEMPERATUR ESWITCH
THERMOMETE R
ENGINEOIL
3. Hea t th e engin e oi l an d chec k th e temperatur e wit h
a thermometer .
CAUTION : D o no t le t th e thermomete r touc h th e
botto m of th e ho t container .
4 . Measur e th e resistanc e betwee n th e A an d B termi -
nal s accordin g to th e table .
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Page 141 of 1771
Radiator
Illustrate d Inde x
Syste m is unde r hig h pressur e whe n th e
engin e i s hot . T o avoi d dange r o f releasin g scaldin g
coolant , remov e th e ca p onl y whe n th e engin e is cool .
Tota l Coolin g Syste m Capacit y (Includin g heate r an d
reservoir )
7.7 (8. 1 US qt , 6. 8 Im p qt )
Reservoi r capacity : 0.6 5 (0.6 9 U S qt , 0.5 7 Im p qt ) CAUTION
: Whe n pourin g engin e coolant , b e sur e t o
shu t th e rela y bo x li d an d no t t o spil l coolan t o n th e elec -
trica l part s o r th e painte d portion . I f an y coolan t spills ,
rins e it of f immediately .
NOTE:
• Chec k al l coolin g syste m hose s fo r damage , leak s o r
deterioratio n an d replac e if necessary .
• Chec k al l hos e clamp s an d retighte n if necessary .
• Us e ne w O-ring s whe n reassembling .
RADIATOR CA PPressur e testing , pag e 10- 6RADIATO REngine coolan t
Refillin g an d bleeding , pag e 10- 5
Leak test , pag e 10- 6Inspec t soldere d joint s an dseam s fo r leaks .Blow ou t dir t fro m betwee ncore fin s wit h compresse d air .If insects , etc. , ar e cloggin gradiator , was h the m of f wit hlow-pressur e water .
AUTOMATI C TRANSMISSIO NFLUID (ATF ) COOLE R HOSE SRefer t o sectio n 1 4 whe ninstalling .
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Page 145 of 1771
Radiator
Cap Testing
1. Remove the radiator cap, wet its seal with engine
coolant, then install it on the pressure tester.
2. Apply a pressure of 93-123 kPa (0.95-1.25 kgf/cm2,
14- 18
psi).
3. Check for a drop in pressure.
4. If the pressure drops, replace the cap.
RADIATOR PRESSURE TESTER
(Commercially available)
Testing
RADIATOR
CAP
SMALL ADAPTOR
(for 32 mm neck, low profile)
1. Wait until the engine is cool, then carefully remove
the
radiator
cap and
fill
the
radiator
with
engine
coolant to the top of the filler neck.
2. Attach the pressure tester to the radiator and apply
a pressure of 93-123 kPa (0.95 - 1.25 kgf/cm2, 14 -
18
psi).
3. Inspect for engine coolant leaks and a drop in pres-
sure.
4. Remove the tester and reinstall the radiator cap.
NOTE: Check for engine oil in the coolant and/or
coolant in the engine oil.
SMALL ADAPTOR
(for 32 mm neck, low profile)
RADIATOR PRESSURE
TESTER
(Commercially available)ProCarManuals.com
Page 147 of 1771
Thermostat ECT Switc h
Testin g
Replac e th e thermosta t i f i t i s ope n a t roo m temperature .
T o tes t a close d thermostat :
1 . Suspen d th e thermosta t i n a containe r o f wate r a s
shown .
2 . Hea t th e water , an d chec k th e temperatur e wit h a
thermometer . Chec k th e temperatur e a t whic h th e
thermosta t firs t opens , an d a t whic h i t i s full y open .
CAUTION : D o no t le t th e thermomete r touc h th e
botto m o f th e ho t container .
3. Measur e lif t heigh t o f th e thermosta t whe n it i s full y
open .
STANDAR D THERMOSTA T
Lif t height : abov e 10. 0 m m (0.3 9 in )
Start s opening : 169-176° F (76-80°C )
Fully open : 194° F (90°C )
THERMOMETE R
THERMOSTAT
Testing
Removin g th e EC T switc h whil e th e engin e
is ho t ca n caus e th e coolan t t o spra y out , seriousl y scald -
ing you . Alway s le t th e engin e an d radiato r coo l dow n
befor e removin g th e EC T switch .
NOTE : Blee d ai r fro m th e coolin g syste m afte r installin g
th e EC T switc h (se e pag e 10-5 ).
1 . Remov e th e EC T switc h fro m th e radiato r (se e pag e
10-2).
2 . Suspen d th e EC T switc h i n a containe r o f wate r a s
shown .
ECT SWITC HTHERMOMETE R
WATER
3. Hea t th e wate r an d chec k th e temperatur e wit h a
thermometer .
CAUTION : D o no t le t th e thermomete r touc h th e
botto m of th e ho t container .
4 . Measur e th e resistanc e betwee n th e A an d B termi -
nal s accordin g t o th e table .
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Page 152 of 1771
Component Location s
Index (cont'd )
THREE WA Y CATALYTI C CONVERTE R (TWC )
SECONDAR Y HEATE D OXYGE N SENSO R (SECONDAR Y HO2S ) (SENSO R 2)
SERVIC E CHEC K CONNECTO R (2P )
Troubleshooting , procedures , pag e 11-3 2
DAT A LIN K CONNECTO R (16P )Troubleshootin gprocedures, page , 11-3 2
POWERTRAI N CONTRO L MODUL E(PCM)Troubleshooting , pag e 11-5 3
PGM- RMAIN RELA Y
Rela y Testing , pag e 11-12 9
Troubleshooting , pag e 11-13 0
For Troubleshooting of DTC related components, see chart on page 11-45.
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Page 154 of 1771
Component Location s
Index (cont'd )
'96 model :
EVAPORATIV E EMISSIO N
(EVAP ) TW O WA Y VALV E
FUE L INJECTOR S
Repalcement , pag e 11-12 1 FUE
L PUM P
Testing , pag e 11-12 8
FUEL FIL L CA P
FUE L RAI L FUE
L TUBE/QUICK-CONNEC T
FITTINGS
EVAPORATIV E EMISSIO N
(EVAP ) CONTRO L CANISTE R
EVAPORATIV E EMISSIO N
(EVAP ) PURG E CONTRO L
DIAPHRAG M VALV E
FUE L FEE D PIP E
FUE L VAPO R PIP E
FUE L RETUR N PIP E
'97 - 9 8 models :FUEL GAUG E SENDIN G UNI T
FUE L TAN K
FUE L
PRESSUR E REGULATO R
Testing, pag e 11-12 4Replacement , pag e 11-12 7
FUE L
PULSATIO N
DAMPE R
FUE L RAI L FUE
L FILTE R
Replacement , pag e 11-12 7
FUE L INJECTOR S
Replacement , pag e 11-12 1
EVAPORATIV E EMISSIO N
(EVAP ) CONTRO L CANISTE R
VEN T SHU T VALV E
Replacement , pag e 11-16 9
FUEL PUM PTesting , pag e 11-12 8
FUEL FIL L CA P
FUE L TUBE/QUICK-CONNEC T
FITTINGS
EVAPORATIV E EMISSIO N(EVAP) BYPAS S SOLENOI D
VALV E
EVAPORATIV E EMISSIO N(EVAP) TW O WA Y VALV E
FUE L FEE D PIP E
FUE L VAPO R PIP E
EVAPORATIV E EMISSIO N
(EVAP ) CONTRO L CANISTE R
FUEL RETUR N PIP E
FUE
L FILTE R
Replacement , pag e 11-12 7FUE
L TAN K
FUE L
PRESSUR E REGULATO R
Testing, pag e 11-12 4Replacement , pag e 11-12 7 FUE
L GAUG E SENDIN G UNI T
For Troubleshooting of DTC related components,
see chart on page 11-45.
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Page 180 of 1771
Troubleshooting
Troubleshooting Procedure s
I. Ho w T o Begi n Troubleshootin g
Whe n th e Malfunctio n Indicato r Lam p (MIL ) ha s bee n reporte d on , o r ther e i s a driveabilit y problem , us e th e appropri -
at e procedur e belo w to diagnos e an d repai r th e problem .
A . Whe n th e MI L ha s com e on :
1 . Connec t th e Hond a PG M Teste r o r a n OB D II sca n too l t o th e 16 P Dat a Lin k Connecto r (DLC ) locate d o n th e cente r
consol e behin d th e ashtray .
2 . Tur n th e ignitio n switc h O N (II) .
3 . Chec k th e DT C an d not e it . Als o chec k an d not e th e
freez e fram e data .
Refe r t o th e Diagnosti c Troubl e Cod e Char t an d
begi n troubleshooting .
MALFUNCTIONINDICATORLAMP(MIL)
NOTE :
See th e OB D II sca n too l o r Hond a PG M Teste r user' s manual s fo r specifi c operatin g instructions .
Th e sca n too l o r teste r ca n rea d th e Diagnosti c Troubl e Code s (DTC) , freez e fram e data , curren t data , an d othe r
Powertrai n Contro l Modul e (PCM ) data .
Freez e fram e dat a indicate s th e engin e condition s whe n th e firs t malfunction , misfir e o r fue l tri m malfunctio n wa s
detected . I t ca n b e usefu l informatio n whe n troubleshooting .
B . Whe n th e MI L ha s no t com e on , bu t ther e is a driveabilit y problem , refe r t o th e Sympto m Char t o n pag e 11-34 .
C . DTC s wil l b e indicate d b y th e blinkin g o f th e Malfunctio n Indicato r Lam p (MIL ) wit h th e SC S servic e connecto r
connected .
• Connec t th e SC S servic e connecto r t o Servic e Chec k Connecto r a s shown . (Th e 2 P Servic e Chec k Connecto r
i s locate d unde r th e das h o n th e passenger' s sid e o f th e car. ) Tur n th e ignitio n switc h O N (II) .
DAT A LIN K CONNECTO R (16P )SERVIC E CHEC KCONNECTO R (2P )
OBD II SCA N TOO L o rHOND A PG M TESTE R
SCS SERVIC E CONNECTO R07PAZ-001010 0
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Page 181 of 1771
II. Powertrain Control Module (PCM) Reset Procedure
Either of the following actions will reset the PCM
Use the OBD II scan tool or Honda PGM Tester to clear the PCM's memory.
NOTE: See the OBD II scan tool or Honda PGM Tester user's manuals for specific operating instructions.
Turn the ignition switch OFF. Remove the BACK UP RADIO (10 A) fuse from the under-hood fuse/relay box for
10 seconds.
BACK UP RADIO
(10 A) FUSE
UNDER-HOOD
FUSE/RELAY
BOX
III. Final Procedure (this procedure must be done after any troubleshooting)
1. Remove the SCS Service Connector if it is connected.
NOTE: If the SCS service connector is connected and there are no DTCs stored in the PCM, the MIL will stay
on when the ignition switch is turned ON (II).
2. Do the PCM Reset Procedure.
3. Turn the ignition switch OFF.
4. Disconnect the OBD II scan tool or Honda PGM Tester from the Data Link Connector (16P).ProCarManuals.com
Page 183 of 1771
CAUTION:
Puncturing the insulation on a wire can cause poor or intermittent electrical connections.
Bring the tester probe into contact with the terminal from the terminal side of wire harness connectors in the engine
compartment. For female connectors, just touch lightly with the tester probe and do not insert the probe.
RUBBER SEAL
TESTER PROBE
WIRE HARNESS
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