coolant ACURA TL 1995 Service Repair Manual

59. Raise the hoist.

60. Remove the shift cable guide bracket.

CAUTION: Take care not to bend the shift cable.

61. Remove the transmission beam from the body, and

loosen the three bolts on the transmission bracket.

SHIFT CABLE

GUIDE BRACKET
6 x 1.0 mm

9.8 N-m (1.0 kgf-m,

7.2 Ibf-ft)

TRANSMISSION

BEAM
Loosen these

bolts.

62. Remove the stop holder, mid mount stops and mid

mounts.

Replace.

MID MOUNT

STOP

(US model only)

STOP HOLDER

(US model only)
MID MOUNT

Replace.
63. Lower the hoist.

64. Raise the chain hoist to remove all slack from the

chain.

65. Check that the engine/transmission is completely

free of vacuum hoses, fuel and coolant hoses and

electrical wiring.

66. Slowly raise the engine approximately 150 mm (6 in).

Check once again that all hoses and wires are discon-

nected from the engine/transmission.

67. Remove the left and right brackets.

LEFT:

LEFT

BRACKET

RIGHT:

RIGHT

BRACKET

68. Raise the engine all the way and remove it from the

vehicle.ProCarManuals.com

9. Tighte n th e bolt s an d nut s o n th e righ t bracke t i n
th e numbere d sequenc e a s show n ( ) .
10.
12 x 1.2 5 mm54 N- m (5. 5 kgf-m ,
4 0 Ibf-ft )
Tighte n th e bolt s o n th e transmissio n bracket /
moun t an d transmissio n bea m in th e numbere d
sequence a s show n ( ) .
12 x 1.2 5 mm54 N- m (5. 5 kgf-m , 4 0 Ibf-ft )
10 x 1.2 5 mm38 N- m (3. 9 kgf-m ,
2 8 Ibf-ft )
10 x 1.2 5 mm38 N- m (3. 9 kgf-m ,
2 8 Ibf-ft )10 x 1.2 5 mm38 N- m (3. 9 kgf-m ,
2 8 Ibf-ft )
11. D o th e followin g check s an d adjustments :
Chec k tha t th e sprin g clip s o n th e end s o f th e
driveshaf t an d intermediat e shaf t clic k int o place .
CAUTION : Us e ne w sprin g clips .
Adjus t th e shif t cabl e (se e sectio n 14 ).
Adjus t th e throttl e cabl e (se e sectio n 11 ).
Adjus t th e cruis e contro l cabl e (se e sectio n 23 ).
Refil l th e engine with engin e oi l (se e pag e 8-4 ).
Refil l th e transmissio n wit h AT F (se e sectio n 14 ).
Refil l th e differentia l wit h differentia l oi l (se e
sectio n 15 ).
Refil l th e radiato r wit h engine coolant (se e pag e
10-5).
Blee d ai r fro m th e coolin g syste m a t th e blee d
bol t wit h th e heate r valv e ope n (se e pag e 10-5 ).
Clea n th e batter y post s an d cabl e terminal s wit h
sandpaper , assembl e them , the n appl y greas e to
preven t corrosion .
Inspec t fo r fue l leakag e (se e sectio n 11 ).
• Afte r assemblin g al l fue l lin e parts , tur n o n th e
ignitio n switc h (d o no t operat e th e starter ) s o
tha t th e fue l pum p operates for approximatel y
tw o second s an d th e fue l lin e pressurizes .
Repea t thi s operatio n tw o o r thre e times , an d
chec k fo r fue l leakag e a t an y poin t i n th e fue l
line.
Ente r th e anti-thef t cod e fo r th e radio , the n ente r
th e customer' s radi o statio n presets .
12 x 1.2 5 mm54 N- m (5. 5 kgf-m ,
4 0 Ibf-ft )
10 x 1.2 5 mm38 N- m (3. 9 kgf-m ,
2 8 Ibf-ft )
ProCarManuals.com

22. Remove the positive crankcase ventilation (PCV)

hose.

23. Remove the bolt securing the automatic transmis-

sion fluid (ATF) dipstick tube bracket.

6 x 1.0 mm

12 N-m (1.2 kgf-m,

8.7 Ibf-ft)

ATF BRACKET

DIPSTICK TUBE

BRACKET

PCV HOSE

24.

Remove the engine wire harness connectors and

wire harness clamps from the cylinder heads and

intake manifold.

Six injector connectors

Six ignition coil connectors

Throttle position sensor connector

CKP/CYP sensor connector

Intake air temperature (IAT) sensor connector

Exhaust gas recirculation (EGR) valve lift sensor

connector

Idle air control (IAC) valve connector

Engine coolant temperature (ECT) sensor con-

nector

ECT gauge sending unit connector

Engine oil temperature sensor connector

Left primary heated oxygen sensor (left primary

HO2S) connector

Right primary heated oxygen sensor (right pri-

mary HO2S) connector

Evaporative emission (EVAP) purge control

solenoid valve connector ('97 - '98)
25. Remove the inlet pipe mounting bolts from the right

cylinder head cover.

26. Remove the vacuum hoses and breather hose.

6 x 1.0 mm

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

BREATHER

HOSE

VACUUM

HOSES

27. Remove the six ignition coils from the left and right

cylinder head covers.

6 x 1.0 mm

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

IGNITION

COILProCarManuals.com

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 .
ProCarManuals.com

Radiator
5. Remov e th e fa n shrou d assemblie s an d othe r part s
from th e radiator .
Install th e radiato r i n th e revers e orde r o f removal :
NOTE:
Set th e uppe r an d lowe r cushion s securely .
Fil l th e radiato r wit h engin e coolan t an d blee d th e air .
VACUU MTANK
6 x 1. 0 m m8 N- m (0. 8 kgf-m ,6 Ibf-ft )
CONDENSO RFAN SHROU D
6 x 1. 0 m m7 N- m (0. 7 kgf-m ,
5 Ibf-ft )
FAN MOTO RCONNECTO R
RADIATO R FA N
SHROU D
ATF COOLE R
HOSE S
Refe r t o sectio n 1 4
whe n installing .
UPPER RADIATO R
HOS E RADIATO
RCAP6 x 1. 0 m m9.8 N- m (1. 0 kgf-m ,
7. 2 Ibf-ft )
UPPE R BRACKE T
AND CUSHIO N
RADIATO R
LOWE R
CUSHIO N
O-RINGReplace .
ECT SWITC H24 N- m (2. 4 kgf-m ,17 Ibf-ft )
LOWE R RADIATO R
HOS E
FA N MOTO R
CONNECTO R
ECT SWITC HCONNECTO R
DRAINPLUG
O-RIN GReplace .
Replacemen t
1. Drai n th e engin e coolant .
2 . Remov e th e uppe r an d lowe r radiato r hoses , an d
AT F coole r hoses .
3 . Disconnec t th e fa n moto r connector s an d EC T
switc h connector .
4 . Remov e th e radiato r uppe r brackets , the n pul l u p
th e radiator .
ProCarManuals.com

Engine Coolan t Refillin g an d Bleedin g
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 le t coolan t spil l o n th e
electrica l part s o r th e paint . I f an y coolan t spills , rins e it
of f immediately .
NOTE:
Perfor m thi s procedur e whe n th e engin e is cool .
Befor e replacin g th e coolant , tur n th e ignitio n O N (II) ,
slowl y tur n th e climat e contro l temperatur e kno b t o
90 ° an d tur n of f th e ignition . Thi s wil l allo w th e
coolan t i n th e heate r t o drai n ou t wit h th e res t o f th e
system .
1 . Mak e sur e yo u hav e th e anti-thef t cod e fo r th e radio ,
the n writ e dow n th e frequencie s fo r th e radio' s pre -
se t buttons .
2 . Disconnec t th e batter y negativ e termina l first , the n
th e positiv e terminal , the n remov e th e batter y an d
batter y bas e (se e pag e 5-4 ).
3 . Whe n th e radiato r i s cool , remov e th e radiato r cap .
Loose n th e drai n plug , an d drai n th e coolant .
4 . Remov e th e drai n bol t fro m th e lef t sid e o f th e cylin -
de r bloc k t o drai n th e block .
DRAINPLUG
5.
WASHE RReplace .DRAIN BOL T64 N- m (6. 5 kgf-m ,
4 7 Ibf-ft )
Apply liqui d gaske t t o th e drai n bol t threads , the n
reinstal l th e bol t wit h a ne w washe r an d tighte n i t
securely .
6. Tighte n th e radiato r drai n plu g securely .
7 . Remove , drai n an d reinstal l th e reservoir . Fil l th e
tan k halfwa y t o th e MA X mar k wit h water , the n u p
t o th e MA X mar k wit h antifreeze . 8
. Mi x th e recommende d antifreez e wit h a n equa l
amoun t o f wate r i n a clea n container .
NOTE:
Use onl y genuin e Hond a antifreeze/coolant .
Fo r bes t corrosio n protection , th e coolan t con -
centratio n mus t b e maintaine d year-roun d a t
50 % minimum . Coolan t concentration s les s tha n
50 % ma y no t provid e sufficien t protectio n
agains t corrosio n o r freezing .
Coolan t concentration s greate r tha n 60 % wil l
impai r coolin g efficienc y an d ar e no t recom -
mended .
CAUTION :
D o no t mi x differen t brand s o f antifreeze/coolants .
D o no t us e additiona l rus t inhibitor s o r anti-rus t
products ; the y ma y no t b e compatibl e wit h th e
coolant .
Engine Coolan t Refil l Capacit y [Includin g reservoi r
(0.65 (0.6 9 U S qt , 0.5 7 Im p qt))] :
3.2 (3. 4 US qt , 2. 8 Im p qt )
9. Loose n th e ai r blee d bol t i n th e wate r passage , the n
fill th e radiato r t o th e botto m o f th e fille r nec k wit h
the coolan t mixture . Tighte n th e blee d bol t a s soo n
a s coolan t start s t o ru n ou t i n a stead y strea m with -
ou t bubbles .
10 . Wit h th e radiato r ca p off , star t th e engin e an d le t i t
ru n unti l warme d u p (radiato r fa n come s o n a t leas t
twice) . Then , i f necessary , ad d mor e coolan t mi x t o
brin g th e leve l bac k u p to th e botto m o f th e fille r neck .
11 . Pu t th e radiato r cap on tightly , the n ru n th e engin e
agai n an d chec k fo r leaks .
12 . Ente r th e anti-thef t cod e fo r th e radio , the n ente r th e
customer' s radi o statio n presets .
BLEED BOL T9.8 N- m (1. 0 kgf-m , 7. 2 Ibf-ft )
ProCarManuals.com

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

Thermostat

Replacement

NOTE: Use new O-rings when reassembling.

ENGINE COOLANT

TEMPERATURE

(ECT) SENSOR

18 N-m (1.8 kgf-m, 13 Ibf-ft)
BLEED BOLT

9.8 N-m (1.0 kgf-m,

7.2 Ibf-ft)

O-RING

Replace.
ECT GAUGE

SENDING UNIT

9 N-m (0.9 kgf-m,

7lbf-ft)

THERMOSTAT

COVER

THERMOSTAT

Install with pin up.

RUBBER SEAL

Replace.

6 x 1.0 mm

12 N-m (1.2 kgf-m,

8.7 Ibf-ft)ProCarManuals.com

Water Pum p
Inspectio n
1. Remov e th e timin g bel t (se e pag e 6-6 ).
2 . Tur n th e wate r pum p pulle y counterclockwise .
Check tha t i t turn s freely .
3. Chec k fo r sign s o f sea l leakage .
NOTE: A smal l amoun t o f "weeping " fro m th e blee d
hole is normal .
BLEED HOL E
Replacemen t
1. Remov e th e timin g bel t (se e pag e 6-6 ).
2 . Remov e th e lef t camshaf t pulle y an d bac k cove r
(se e pag e 6-19 ).
3 . Remov e th e wate r pump .
NOTE: Inspect , repai r an d clea n th e O-rin g groov e
and matin g surfac e wit h th e cylinde r block .
8 x 1.2 5 mm22 N- m (2. 2 kgf-m ,
1 6 Ibf-ft )
O-RIN GReplace .
DOWE L
PIN
DOWE L PI N
O-RIN G
Replace .
WATER8 x 1.2 5 m m \ PUM P22 N- m (2. 2 kgf-m , 6 x 1. 0 m m
1 6 Ibf-ft ) 1 2 N- m (1. 2 kgf-m ,
8. 7 Ibf-ft )
4. Instal l th e wate r pum p in th e revers e orde r o f removal .
NOTE :
Keep th e O-rin g in positio n whe n installing .
Clean th e spille d engin e coolant .
ProCarManuals.com

PGM-FI System

System Description (cont'd)

3. Fuel Cut-off Control

During deceleration with the throttle valve closed, current to the fuel injectors is cut off to improve fuel economy at

speeds over 1,000 rpm.

Fuel cut-off action also takes place when engine speed exceeds 6,500 rpm, regardless of the position of the throttle

valve, to protect the engine from over-revving.

4. A/C Compressor Clutch Relay .

When the PCM receives a demand for cooling from the air conditioning system, it delays the compressor from being

energized, and enriches the mixture to assure a smooth transition to the A/C mode.

5. Evaporative Emission (EVAP) Purge Control Solenoid Valve

'96 model: When the engine coolant temperature is below 158°F (70°C), the PCM controls the EVAP purge control

solenoid valve which cuts vacuum to the EVAP purge control canister diaphragm.

'97 - 98 models: When the engine coolant temperature is above 99°F (37°C), the PCM controls the EVAP purge control

solenoid valve which controls vacuum to the EVAP purge control canister.

6. Intake Air Bypass (IAB) Low Control Solenoid Valve, Intake Air Bypass (IAB) High Control Solenoid Valve

When engine speed is below 3,350 rpm, the IAB High Control Solenoid Valve and IAB Low Control Solenoid Valve are

activated by a signal from the PCM. Intake air flows through a long chamber path, increasing torque at low RPM.

When engine speed is 3,350 - 3,950 rpm, the IAB Low Control Solenoid Valve is deactivated by the PCM. Intake air

flows through a short chamber path, increasing mid-range torque.

When the engine rpm is above 3,950 rpm, the IAB Low Control Solenoid Valve and IAB High Control Solenoid Valve are

deactivated by the PCM. This creates a very short intake path and increases high-speed torque.

7. Exhaust Gas Recirculation (EGR) Control Solenoid Valve

When the EGR is required for control of oxides of nitrogen (NOx) emissions, the PCM controls the EGR control solenoid

valve which supplies regulated vacuum to the EGR valve.

ECM Fail-safe/Back-up Functions

1. Fail-safe Function

When an abnormality occurs in a signal from a sensor, the PCM ignores that signal and assumes a pre-programmed

value for that sensor that allows the engine to continue to run.

2. Back-up Function

When an abnormality occurs in the PCM itself, the fuel injectors are controlled by a back-up circuit independent of the

system in order to permit minimal driving.

3. Self-diagnosis Function [Malfunction Indicator Lamp (MIL)]

When an abnormality occurs in a signal from a sensor, the PCM supplies ground for the MIL and stores the DTC in

erasable memory. When the ignition is initially turned on, the PCM supplies ground for the MIL for two seconds to

check the MIL bulb condition.

4. Two Driving Cycle Detection Method

To prevent false indications, the two driving cycle detection method is used for the H02S, fuel metering-related, idle

control system, ECT sensor, EGR system, TWC, EVAP control system and other self-diagnostic functions. When an

abnormality occurs, the PCM stores it in its memory. When the same abnormality recurs after the ignition switch is

turned OFF and ON (II) again, the PCM informs the driver by lighting the MIL.

However, to ease troubleshooting, this function is cancelled when you short the service check connector. The MIL will

then blink immediately when an abnormality occurs.ProCarManuals.com