check engine ACURA RL KA9 1996 Service User Guide

Idle Contro l Syste m
Idle Ai r Contro l (IAC ) Valv e
The HD S o r th e sca n too l indicate s Diagnosti c Troubl e Cod e (DTC ) P0511 : A proble m in th e Idl e Ai r Contro l (IAC )
valve circuit .
— Th e MI L ha s bee n reporte d on .
— DTCP051 1 i s stored .
Problem verification :1. D o th e PC M Rese t Procedure .
2 . Star t th e engine .
Is DTC P0511 indicated?
YES
Chec k fo r a n ope n i n the wir e
(IGP 1 line) :
1. Tur n th e ignitio n switc h OFF .2. Disconnec t th e IA C valv e con -
nector .
3 . Tur n th e ignitio n switc h O N (II) .
4 . Measur e voltag e betwee n bod y
groun d an d th e IA C valv e con -
necto r termina l No . 2 .
I s ther e batter y voltage ?
I s ther e batter y voltage ?
YES
Chec k th e IA C valv e function :
Momentaril y connec t PC M con -
necto r terminal s A 5 an d A1 2 wit h
a jumpe r wir e severa l times .
Doe s th e IA C valv e click ?
YES
Substitut e a known-goo d PC M
an d recheck . I f symptom/indica -
tio n goe s away , replac e th e origi -
nal PCM .
NO
Intermitten t failure , syste m is O K
a t thi s time . Chec k fo r poo r con -
nection s o r loos e terminal s a t
C253 , (locate d a t righ t shoc k
tower) , C12 9 (IA C valve ) an d
PCM .
Repai r ope n in th e wir e betwee n
IA C valv e an d PGM-F I mai n relay . Wir
e sid e o f femal e terminal s
Repai r ope n o r shor t i n th e wir e
betwee n PC M (AS ) an d IA C valve .
Replac e th e IA C valve .
ProCarManuals.com

Charging Syste m
Troubleshootin g (cont'd )
(From page 4-25)
Chec k fo r a n ope n in th e IG circuit :
Measur e th e voltag e a t th e No . 1
termina l o f th e 4 P connector .
I s ther e batter y voltage ?
Chec k th e Alternator/Regulator :
1. Tur n th e ignitio n switc h OFF .2. Connec t th e 4 P connecto r t o
th e alternator .
3. Tur n th e ignitio n switc h O N(II).
Doe s th e chargin g syste mlight com e on ?
4. Star t th e engine .
Doe s th e chargin g syste m
ligh t g o off ?
Th e chargin g syste m ligh t circui t
is OK .
Turn th e ignitio n switc h OFF , an drepai r th e ope n circui t i n th e BLK /YEL wire .
ALTERNATO R4P CONNECTO R
Wir e sid e o f
femal e terminal s
Check th e alternator/regulato r
(se e pag e 4-27 ).
Chec k th e alternator/regulato r
(se e pag e 4-27 ).
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Actuator Cable Adjustment

1. Check that the actuator cable moves smoothly with

no binding or sticking.

2. Measure the amount of movement of the output

linkage until the engine speed starts to increase. At

first, the output linkage should be located at the

fully closed position. Free play should be 5 ± 0.5 mm

(0.20
±
0.02 in).

OUTPUT

LINKAGE
ADJUSTING

NUT

FREE PLAY: 5 ± 0.5 mm (0.20 ± 0.02 in)
ACTUATOR

CABLE

3. If the free play is not within specs, move the cable to

the point where the engine speed starts to increase,

and tighten the locknut and adjusting nut.

CABLE

BRACKET
ADJUSTING

NUT

LOCKNUT

ACTUATOR

CABLE
4.

Turn the adjusting nut until it is 5 ± 0.5 mm (0.20 ±

0.02 in) away from the bracket.

5 ± 0.5 mm
(0.20
±
0.02
in)

CABLE

BRACKET

ADJUSTING

NUT

5.

Pull the cable so that the adjusting nut touches the

bracket, and tighten the locknut.

ADJUSTING

NUT

LOCKNUTProCarManuals.com

62. Separate the right engine mount bracket from the

right engine mount, then remove the vacuum hose.

RIGHT ENGINE

MOUNT BRACKET

VACUUM

HOSE

RIGHT ENGINE

MOUNT

63. Separate the left engine mount bracket from the left

engine mount, then remove the vacuum hose.

LEFT ENGINE

MOUNT BRACKET

LEFT ENGINE

MOUNT

VACUUM

HOSE
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. Raise the engine all the way, and remove it from the

vehicle.ProCarManuals.com

Engine Removal/Installatio n
Installation (cont'd )
5. Instal l th e transmissio n beam , the n tighte n th e bolt s
in th e numbere d sequenc e show n ( ) .
12 x 1.2 5 mm54 N- m (5. 5 kgf-m ,40 Ibf-ft )10 x 1.2 5 mm38 N- m (3. 9 kgf-m ,28 Ibf-ft )
10 x 1.2 5 mm38 N- m (3. 9 kgf-m ,28 Ibf-ft )
6. Tighte n th e lef t fron t moun t mountin g bolt .
12 x 1.2 5 mm74 N- m (7. 5 kgf-m ,52 Ibf-ft )
7. Tighte n th e righ t fron t moun t mountin g bolt .
12 x 1.2 5 mm74 N- m (7. 5 kgf-m ,52 Ibf-ft )
8. D o th e followin g check s an d adjustments :
Chec k tha t th e se t ring s o n th e end s o f th e drive -
shaf t an d intermediat e shaf t clic k int o place .
CAUTION : Us e ne w se t rings .
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 4 ).
Refil l th e engin e wit h 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 engin e coolan t (se e pag e
10-5).
Blee d ai r fro m th e coolin g syste m a t th e blee d
bolt 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 operate s fo r approxi -
matel y 2 second s an d pressurize s th e fue l
line .
— Repea t thi s operatio n 2 or 3 times , the n chec k
for 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 .
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Engine Moun t Contro l Syste m
Troubleshootin g Flowchar t
NOTE:
Check th e vacuu m hose s an d line s fo r damag e an d prope r connections .
Refe r t o th e Troubleshootin g Procedure s (se e sectio n 11 ).
Th e engin e vibrate s excessivel y
whe n idling .
Chec k Idl e Speed :
War m u p engin e t o norma l oper -
ating temperatur e (th e coolin gfan come s o n 2 times) .
I s th e idl e spee d les s tha n
70 0 rpm ? Adjus
t th e idl e spee d (se e
sectio n 11 ).
Chec k th e Engin e Moun t Contro l
System:1. Full y depres s th e brak e pedal .
2 . Wit h th e transmissio n i n gear ,
hav e a n assistan t disconnec t
and reconnec t th e IMRC /engine moun t contro l solenoi d
valv e assembl y 6 P connector .
I s ther e a noticeabl e chang e in
idl e smoothnes s whe n th e
IMRC/engin e moun t contro lsolenoi d valv e assembl y 6 P con -
necto r i s disconnected ? Reconnec
t th e IMRC/engin e
moun t contro l solenoi d valv e
assembl y 6 P connector . Th e
engin e moun t contro l syste m isOK .
IMRC/ENGIN E MOUN T
CONTRO L SOLENOI D
VALV E ASSEMBL Y 6P
CONNECTO R
Test th e Engin e Moun t Contro l
Solenoi d Valv e Wire :
1. Shif t t o o r position .
2 . Disconnec t th e IMRC/engin e
moun t contro l solenoi d valv e
assembl y 6 P connector .
3 . Measur e voltag e betwee n th e
No. 3 termina l an d bod y
ground .
Is ther e batter y voltage ? Repai
r ope n i n BLK/YE L wir e
betwee n th e IMRC/engin e
moun t contro l solenoi d valv e
assembl y 6 P connecto r an d PC M
fuse (2 0 A) .
Wir e sid e o f femal e
terminal s
Tes t th e Engin e Moun t Contro l
Solenoi d Valv e Wire :
Measur e voltag e betwee n th e
No . 3 an d No . 6 terminals .
I s ther e batter y voltage ?
NO
(T o pag e 5-21 ) —
Repai r ope n i n L T GR N wir e
betwee n PC M (A17 ) an d th e
IMRC/engin e moun t contro l
solenoi d valv e assembl y 6 P
connector .— If th e wir e i s OK , substitut e a
known-goo d PC M an d recheck .
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Hydraulic Tappets

Bleeding

1. Fill a container with 5W - 30 or 10W - 30 engine oil,

and place the hydraulic tappet in it. Press down on

the check ball with a thin wire. Bleed the tappet of

air by pumping the plunger slowly until no bubbles

come out of the hydraulic tappet.

WIRE

HYDRAULIC

TAPPET
PLUNGER

5W
- 30 or

10W
-
30

ENGINE OIL

CHECK BALL

2. Install the hydraulic tappet to the rocker arm.

NOTE:

• Use a new O-ring when reassembling.

• Apply oil to the O-ring before installation.

ROCKER ARM

O-RING

Replace.

HYDRAULIC

TAPPETProCarManuals.com

Cylinder Heads

Installation (cont'd)

4. Install the cylinder heads on the cylinder block.

5. Tighten the cylinder head bolts sequentially in 2 or

3 steps.

Specified Torque:

76 N-m (7.8 kgf-m, 56 Ibf-ft)

NOTE:

We recommend using a beam-type torque wrench.

When using a preset-type torque wrench, be sure

to tighten slowly and not to overtighten.

If a bolt makes any noise while you are torquing

it, loosen the bolt and retighten it.

CYLINDER HEAD BOLTS TORQUE SEQUENCE

CYLINDER HEAD BOLTS

Apply engine oil to the bolt

threads.
6. Install the head cover gasket in the groove of the

cylinder head cover. Seat the recesses for the cam-

shaft first, then work it into the groove around the

outside edges.

NOTE:

Before installing the cylinder head cover gasket,

thoroughly clean the seal and the groove.

When installing, make sure the head cover gasket

is seated securely in the corners of the recesses

with no gap.

CORNERS OF

THE RECESS
HEAD COVER

GASKET

Clean.
CORNERS OF

THE RECESS

CYLINDER

HEAD COVER

7. Apply liquid gasket to the head cover gasket at the

four corners of the recesses.

NOTE:

Use liquid gasket, Part No. 08718 - 0001 or 08718

- 0003.

Check that the mating surfaces are clean and dry

before applying liquid gasket.

Do not install the parts if five minutes or more have

elapsed since applying liquid gasket. Instead, reap-

ply liquid gasket after removing old residue.

After assembly, wait at least 30 minutes before

filling the engine with oil.

Apply liquid gasket to

the shaded areas.ProCarManuals.com

3. Stop after the ring compressor pops free, and check

the connecting rod-to-crank journal alignment

before pushing the piston into place.

4. Install the rod caps with bearings, and torque the

nuts to 44 N-m (4.5 kgf-m, 33 Ibf-ft).
RUBBER HOSES
CORRECT
Pistons

Installation

Before installing the piston, apply a coat of engine

oil to the ring grooves and cylinder bores.

1. Install the ring compressor, check that the bearing

is securely in place; then position the piston in the

cylinder and tap it in using the wooden handle of a

hammer.

2. Install the piston/connecting rod assemblies in the

cylinder block.

• Guide the piston carefully to prevent damage.

• Fit long rubber hoses (about 30 cm (12 in) long)

to the connecting rod bolts to protect the crank-

shaft.

• Install the pistons after setting the crankshaft to

BDC for each cylinder.

INCORRECT
The arrow must face

the timing belt side

of the engine and the

connecting rod oil hole

must face the right side

of the engine.

CONNECTING ROD

OIL HOLE

RUBBER

HOSE

NOTE: Maintain downward force on the ring com-

pressor to prevent the rings from expanding before

entering the cylinder bore.

Use the wooden handle

of a hammer to push, or

tap the piston into the

cylinder bore.

RING COMPRESSOR

(Commercially available)ProCarManuals.com

Crankshaft

Installation (cont'd)

10. Apply liquid gasket to the cylinder block mating sur-

face of the rear cover, then install the cover on the

cylinder block.

REAR COVER

Apply liquid gasket

along the broken line.

Do not apply liquid gasket

to O-ring groove.

NOTE:

• Use liquid gasket, Part No. 08718 - 0001 or 08718

- 0003.

• Check that the mating surfaces are clean and dry

before applying liquid gasket.

• Apply liquid gasket evenly, being careful to cover

all the mating surface.

• To prevent oil leakage, apply liquid gasket to the

inner threads of the bolt holes.

• Do not apply liquid gasket to O-ring grooves.

• Do not install the parts if five minutes or more

have elapsed since applying liquid gasket.

Instead reapply liquid gasket after removing old

residue.

• After assembly, wait at least 30 minutes before

filling the engine with oil.

Apply liquid gasket

along the broken line.
O-RING GROOVE
NOTE:

• Apply a light coat of oil to the crankshaft and to the

lip of the oil seal.

• Use a new O-ring and apply oil when installing it.

REAR COVER
DOWEL PINS

6 x 1.0 mm

12 N-m (1.2 kgf-m,

8.7 Ibf-ft)
O-RING

Replace.

11. Apply liquid gasket to the cylinder block mating sur-

face of the oil pump.

NOTE: Do not apply liquid gasket to the O-ring

grooves.

OIL PUMP

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