oil pressure ACURA TL 1995 Service Repair Manual

8. Disconnect the TCS throttle sensor connector and

TCS throttle actuator connector, then remove the

TCS control valve assembly.

Do not disconnect the breather pipe bypass hose.

TCS THROTTLE SENSOR

CONNECTOR

TCS THROTTLE

ACTUATOR CONNECTOR

TCS CONTROL VALVE

ASSEMBLY

9. Remove the oil pressure switch connector, engine

ground cable and engine wire harness cover.

6 x 1.0 mm

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

OIL PRESSURE

SWITCH CONNECTOR
ENGINE

GROUND

CABLE

ENGINE WIRE

HARNESS COVER
10. Remove the idler pulley bracket, dipstick and pipe.

6 x 1.0 mm

12 N-m (1.2 kgf-m,

8.7 Ibf-ft)
DIPSTICK/PIPE

8 x
1.25
mm

22 N-m (2.2 kgf-m, 16 Ibf-ft)

11. Remove the crankshaft pulley.

12. Remove the upper and lower covers.

NOTE: Do not use the upper and lower covers to

store removed items.

UPPER COVERS

Clean.

6 x 1.0 mm

12 N-m (1.2 kgf-m,

8.7 Ibf-ft)

LOWER COVER

Clean.
IDLER PULLEY

BRACKET
O-RING

Replace.ProCarManuals.com

Reaming
NOTE: Fo r ne w valv e guide s only .
1 . Coa t bot h th e reame r an d valv e guid e wit h cuttin g
oil.
2. Rotat e th e reame r clockwis e th e ful l lengt h o f th e
valv e guid e bore .
3 . Continu e t o rotat e th e reame r clockwis e whil e
removin g i t fro m th e bore .
4 . Thoroughl y was h th e guid e i n detergen t an d wate r
t o remov e an y cuttin g residue .
5 . Chec k th e clearanc e wit h a valv e (se e pag e 6-28 ).
— Verif y tha t a valv e slide s i n th e valv e guid e with -
ou t exertin g pressure .
REAMER HANDL E
VALVE GUID E
REAMER , 5. 5 m m
07HA H - PJ7010 B
Tur n reame r i n
clockwis e directio n
only.
ProCarManuals.com

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 .
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

Powertrain Control Module (PCM)

NOTE: If this symptom is intermittent, check for a loose fuse No. 1 (BACK UP

LIGHTS, METER LIGHTS, 10 A) in the under-dash fuse/relay box, a poor con-

nection at PCM terminal A7, or an intermittent open in the GRN/RED wire

between the PCM (A7) and the gauge assembly.

Is the low oil pressure light on?

Try to start the engine.

Does the engine start?

Check for an open in the wire or

bulb (MIL line):

1. Turn the ignition switch OFF.

2. Connect the PCM connector ter-

minal A7 to body ground with a

jumper wire.

3. Turn the ignition switch ON (II).

Is the MIL on?

Substitute a known-good PCM,

and recheck. If symptom/indica-

tion goes away, replace the origi-

nal
PCM.
— Repair short or open in the

wire between NO. 1 (BACK-UP

LIGHTS, METER LIGHTS) (10

A) fuse and gauge assembly.

— Replace No. 1 (BACK-UP

LIGHTS, METER LIGHTS) (10 A)

fuse.

PCM CONNECTOR A (26P)

Check for an open in the wires

(PG1, PG2 lines):

1. Turn the ignition switch ON (II).

2. Measure voltage between

body ground and PCM con-

nector terminals A12 and A25

individually.
Wire side of female terminals

Is there less than 1.0 V?
Repair open in the wire(s)

between PCM and G101 (located

at intake manifold) that had

more than 1.0 V.

PCM CONNECTOR A (26P)

JUMPER WIRE

Wire side of female terminals
Repair open in the wires

between PCM (A7) and gauge

assembly.

Replace the MIL bulb.
Substitute a known-good PCM

and recheck. If symptom/indica-

tion goes away, replace the origi-

nal
PCM.
Turn the ignition switch ON (II).
The Malfunction Indicator Lamp

(MIL) never comes on (even for

two seconds) after ignition is

turned on (II).ProCarManuals.com

Clutch

Disassembly (cont'd)

CAUTION: If either end of the special tool is set over an

area of the spring retainer which is unsupported by the

return spring, the retainer may be damaged. Be sure the

special tool is adjusted to have full contact with the

spring retainer.

SPECIAL TOOL

Set here.

SPECIAL TOOL

SPRING RETAINER

4. Compress the return spring with the special tool.
5. Remove the snap ring. Then remove the special tools,

spring retainer and return spring.

SPECIAL TOOL

SNAP RING

RETURN SPRING

SPRING RETAINER

6. Wrap a shop rag around the clutch drum, and apply

air pressure to the oil passage to remove the piston.

Place a finger tip on the other end while applying

air pressure.

OSH A
-APPROVED

30 psi NOZZLE

CLUTCH

DRUM

PISTONProCarManuals.com

Reassembly

NOTE:

• Clean the disassembled parts with a solvent, and dry them with compressed air. Do not dip the rubber parts in a sol-

vent.

• Always replace the O-rings and rubber seals with new ones before assembly.

• Apply the recommended power steering fluid to the parts indicated in the assembly procedures.

• Do not allow dust, dirt, or other foreign materials to enter the power steering system.

• Use the appropriate special tools where necessary.

FLANGE BOLT

9 N-m (0.9 kgf-m, 6.5 Ibf-ft)
FLANGE BOLT

20 N-m (2.0 kgf-m, 14 Ibf-ft)

CAP
PINION DUST COVER

VALVE HOUSING

26 N-m (2.7 kgf-m, 20 Ibf-ft)

CYLINDER LINE A

VALVE OIL SEAL

Replace.

SHIMS

CYLINDER END

78 N-m (8.0 kgf-m, 58 Ibf-ft)

CYLINDER END SEAL

Replace.
BACKUP RING

Replace.
CAP SEAL

Replace.

PRESSURE CONTROL

VALVE
SPRING

HOUSING SEAL

Replace.

CYLINDER LINE B
VALVE BODY
ASSIST CONTROL

VALVE

VALVE SEAL RING

Replace.

ROLLER BEARING

Replace.

O-RING

Replace.

SLEEVE SEAL

RINGS

Replace.
CIRCLIP

Replace.

SLEEVE
20 N-m (2.0 kgf-m, 14 Ibf-ft)

BACKUP RING

PINION SHAFT
LOCKNUT

RACK GUIDE SCREW

O-RING

Replace.
SPRING
RACK GUIDE

STEERING RACK
CYLINDER END SEAL

Replace.
PISTON SEAL RING

Replace.
CYLINDER HOUSING

GEARBOX HOUSING
O-RING

Replace.
RUBBER STOP

Check for damage or

deterioration.
VALVE SEAL RING

Replace.
O-RING

Replace.ProCarManuals.com

A/C Service Tips and Precautions

The air
conditioner system uses
HFC-134a
(R-134a)
refrigerant
and
polyalkyleneglycol (PAG) refrigerant
oil*,
which
are not

compatible with CFC-12 (R-12) refrigerant and mineral oil. Do not use R-12 refrigerant or mineral oil in this system, and do

not attempt to use R-12 servicing equipment; damage to the air conditioner system or your servicing equipment will result.

*DENSO ND-OIL 8:

P/N 38897 - PR7 - A01AH: 120 (4 fl-oz, 4.2 Imp-oz)

P/N 38899 - PR7 - A01: 40 (1 1/3 fl-oz, 1.4 Imp-oz)

Use only service equipment that is U.L.-listed and is certified to meet the requirements of SAE J2210 to remove R-134a

from the air conditioner system.

CAUTION: Exposure to air conditioner refrigerant and lubricant vapor or mist can irritate eyes, nose and throat. Avoid

breathing the air conditioner refrigerant and lubricant vapor or mist.

If accidental system discharge occurs, ventilate work area before resuming service.

R-134a service equipment or vehicle air conditioner systems should not be pressure tested or leak tested with compressed

air.

Some mixtures of air and R-134a have been shown to be combustible at elevated pressures and can result

in tire or explosion causing injury or property damage. Never use compressed air to pressure test R-134a service equip-

ment or vehicle air conditioner systems.

Additional health and safety information may be obtained from the refrigerant and lubricant manufacturers.

1. Always disconnect the negative cable from the battery whenever replacing air conditioning parts.

2. Keep moisture and dust out of the system. When disconnecting any lines, plug or cap the fittings immediately; don't

remove the caps or plugs until just before you reconnect each line.

3. Before connecting any hose or line, apply a few drops of refrigerant oil to the O-ring.

4. When tightening or loosening a fitting, use a second wrench to support the matching fitting.

5. When discharging the system, use a R-134a refrigerant Recovery/Recycling/Charging System; don't release refriger-

ant into the atmosphere.

6. Add refrigerant oil after replacing the following parts:

NOTE:

To avoid contamination, do not return the oil to the container once dispensed, and never mix it with other refriger-

ant oils.

Immediately after using the oil, replace the cap on the container, and seal it to avoid moisture absorption.

Do not spill the refrigerant oil on the vehicle; it may damage the paint; if the refrigerant oil contacts the paint, wash

it off immediately.

Condenser ........................................ 25 (5/6 fl-oz, 0.9 Imp-oz)

Evaporator........................................ 50 (1 2/3 fl-oz, 1.8 Imp-oz)

Line or hose ...................................... 20 (2/3 fl-oz, 0.7 Imp-oz)

Receiver/Dryer
.................................
15
(1/2
fl-oz,
0.5
Imp-oz)

Leakage repair ................................. 25 (5/6 fl-oz, 0.9 Imp-oz)

Compressor ................................ For compressor replacement, subtract the volume of oil drained from the

removed compressor from 140 (4 1/3 fl-oz, 4.9 Imp-oz), and drain the calculated

volume of oil from the new compressor: 140 (4 1/3 fl-oz, 4.9 Imp-oz) — Volume

of removed compressor = Volume to drain from new compressor.

NOTE: Even if no oil is drained from the removed compressor, don't drain more

than 50 (1 2/3 fl-oz, 1.8 Imp-oz) from the new compressor.

REMOVED NEW

COMPRESSOR COMPRESSOR

SAME LEVEL

140 (4 1/3 fl-oz, 4.9 Imp-oz)
DRAINING

VOLUMEProCarManuals.com

Valve Guide s
Reamin g
NOTE: Fo r ne w valv e guide s only .
1 . Coa t bot h th e reame r an d valv e guid e wit h cuttin g
oil.
2. Rotat e th e reame r clockwis e th e ful l lengt h o f th e
valv e guid e bore .
3 . Continu e t o rotat e th e reame r clockwis e whil e remov -
in g i t fro m th e bore .
4 . Thoroughl y was h th e guid e i n detergen t an d wate r
t o remov e an y cuttin g residue .
5 . Chec k th e clearanc e wit h a valv e (se e pag e 6-27 ).
— Verif y tha t th e valv e slide s i n th e valv e guid e
withou t exertin g pressure .
VALVE GUID E
REAMER , 5. 5 m m
07HA H - PJ7010 B
ProCarManuals.com

Oil Pressur e
Testing
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 engine oil 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 switch , 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 befor e
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 : 6 9 kP a (0. 7 kgf/cm
2,1 0 psi )
minimu m
A t 3,00 0 rpm : 34 0 kP a (3. 5 kgf/cm
2, 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 is NO T withi n specifications , inspec t
th e oi l pum p (se e pag e 8-14 ).
ADAPTE R(1/8"-28, BSPT )(Commerciall y available )
OIL PRESSUR E GAUG E(Commerciall y available )
ENGINE OI L PRESSUR E SWITC HMOUNTIN G HOL E
ProCarManuals.com