engine ACURA INTEGRA 1994 Service Repair Manual

Place the front wheels in the straight ahesd position and
measure the distSnce the steering wheel can be turned
without moving the front wheels.
ROTATIONAL PLAY: 0 - 10 mm l0 - o.:Xl inl
lf the plsy excseds the service limit, psrform rack guide
adjustment (see page 17-211.
lf the play is still excessive after rack guide adjustment,
inspect the stsering linksgo and gearbox as described
on the next page.
ROTANONAL PLAY
Inspection and Adjustment
Steering OperationPower Assist Gheck with
817-1
Gar Parked
1. Check the power steering fluid level (see page 17-
21) and pump belt tension lsee page l7-20).
2.Start the engine, allow it to idle, and turn the steer-
ing wheel from lock-to-lock sev€ral times to warm
uo the fluid.
Attach a spring scale to the steering wheel. With the
engine idling and the car on a clean, dry floor, pull
the scale as shown and read it as soon 8s the tires
begin to turn,
il. The scal6 should read no more than 33 N (3.4 kgf,
7.5 lbf). lf it reads more or less, ch€ck the gearbox
and pump.

NOTE: Perform rack guide adjustment with the wheels
in the straight ahead position.
Loosen the rack guide screw locknut with the spe-
cialtool, then loosen the rack guide screw.
Tighten the rack guide screw until it compresses the
spring and seats against the .ack guide, then loosen
it.
Retighten the rack guide screw to 3.9 N.m {0.4
kgf'm, 2.9 lbf.ft), then back it off to specified angle.
Specified R6turn Angle: 20 t 5"
Tighten the locknut while holding the rack guide
screw.
1.
6.
RACK GUIDE SCREW
25 N.m12.5 kgf.m, 18lbtftl
L(rcKNUT WRENCH, 40 mm07916 - SAs(xtOl
Check for tight or loose steering through the com-
plete turning travel.
Perform following inspections:
. Steering operation (see page 17-18).
. Power assist with car parked.
Check the reservoir at regular intervals. and add fluid as
necessary.
GAUTION: Use only Genuine Honda Power Stosring
Fluid-V. Using othsr fluids such as ATF or other manu-
facturer's power stoering fluid will damags ths systcm,
SYSTEM CAPACITY:
LO6 litor (1.12 US. qt, 0.93 lmp.qtl
at disasssmbly
RESERVOIR CAPACITY:
0.79 lit6r (0.8:l US. qt, 0.70 lmp.qt)
UPPER LEVEL UNE
LOWER LEVEL LINE
,l
Raise the reservoir and disconnect the return hose
that goes to the oil cooler.
Connect a hose of suitable diameter to the discon-
nected return hose and put the hose end in a suit-
able container.
CAUTION: Tako caro not to 3pill tho tluid on tho
body and parts. Wipe off the spilled tluid at onqe.
Start the engine. let it run at idle. and turn the steer-
ing wheel from lock-to-lock several times. When
fluid stops running out of the hose, shut off the
engine. Discard the fluid,
Refit the return hose on the reservor.
Fill the reservoir to the uDoer level line.
Start the engine and run it at fast idle, then turn the
steering from lock-to-lock several times to bleed air
f.om the system.
Recheck the fluid level and add some if necessary.
CAUTION: Do not lill the roservoir beyond tho
uppgr lovel line.
7.

lnspection and Adjustment
Pump Pressure Check
Check the fluid pressure as follows to determine
whether the trouble is in the pump or gearbox.
NOTE: First check the power steering fluid level and
pump belt tension,
CAUnON: Dilconn€st the high pros3uro ho3s with cale
!o e3 not to spill tho powor stooring fluid on th6 lramo
lnd olhor parG.
1. Disconnect the outlet hose from the oumo outlet fit-
ting, 8nd install the pump joint adapter on the
pump outlet.
2, Connect the hose joint sdapter to the power steer-
ing pressure gauge, then connect the outlet hose to
the adaotor.
3. Instsll the power steering pressure gauge to the
pump joint adaptor as shown.
OUTLET HOSE FlTnNG
HOSE ATTACHING BOLT1l Nm11.1 kg{ m 8lbf.ftl
6 x 1.0 m.n BOLT{P!rt of tooll11 N.m11.1 kgtm,8lbf.ftl
P/S JOINT ADAPTOR IPUMPIo?NAK - SmolrA
PUMP OUTI.TTFITIING
Open the shut-off valve fully.
Open the pressure control valve fully.
17 -22
1.
Start the engine and let it idle.
Turn the stee.ing wheel from lock-to-lock several
times to warm the fluid to operating temperature.
Measure steady-state fluid pressure while idling
with the shut-off valve fully open. lf the pump is in
good condition, the gauge should read less than
1500 kpa (15 kgf/cm,,213 psi).
lf it reads high, check the feed line or valve body
unit (see General Troubleshooting l7-10).
Close the shut-off valve. then close the pressure
control valve gradually until the pressure gauge
needle is stabl6, Read the pressure.
lmmediately open the shut-off valve fully.
CAUTION: Do not keep the shut-ott valvs closod
moro thgn 5 soconds or th9 pump could b6 dam"
agod by over-h6ating,
lf the pump is in good condition, the gauge should
read at least 6.400 - 7,400 kpa (65 - 75 kgIlcm,,924- 1,067 psi). A low reading means pump output is
too low for full assist. Repair or replace the pump.
10.
P/S PRESSURE GAUGE

Power Steering Pump
lnstallation
1.Connect the inlet and outlet hoses. Tighten the
pump fiftings securely.
Loosely install the pump in the pump bracket with
mounting bolts.
11N.m11.r kgf.m, 8lbf.ftlOUTIIT HOUSE
INI.TT HOSEO-RINGReplaco.
ADJUSTINGBOLT
PUMP MOUNTING BOLTS2,r N.m {2.4 kgl.m. 17 lbf'ft}
Install the DumD belt.
CAUTION:
. Make surs that thg powor gtooring bslt i!
securgly on the grooyos of ths pulloy!.
. Do not get powor stggring fluid o. groaso in thg
power steering bclt or pulley trc6. Cloan oft 8ny
tluid or groa36 belore installation.
POWER STEERING BELT
PULI..EY
5.
Adjust the pump belt (see page 17-201.
Fill the reservoir to the uoDer level line.
NOTE; Take care not to spill the fluid on the body
and parts. Wipe off the spilled fluid at once.
GAUTION: Uro only Ganuino Honda Powor Stsor.
ing Fluid-V. Using othor tlui& 3uch a3 ATF or oiher
manutacturor's powor steering tluid will drm89e
the rystgm.
SYSTEM CAPACITY:
1.06litor (1.12 US.qt, 0.93 lmp.qt)
RESERVOIR CAPACIW:
0.79 litor (0.1|:| US.qt, 0.?0 lmp.qtl
UP?ER I.fVEL LINE
IEVEI LINE
- Start the engine, let it run at idle, then turn the
steering wheel lock-to-lock severaltimes to bleed
air from the system.
- Recheck the fluid level and add some if neces-
s8ry.
CAUTIONT Do not fill tha .63ervoir boyond th6
upp€r lcvol lino.
17 -44

Troubleshooting
Symptom Chart
NOTE: Check the engine coolant level and allow the engine to warm up before troubleshooting.
SYMPTOMREMEDY
Hot air flow is low.Blower motor runs, but one ol more
speeds are inoperative.
Follow the tlowchart (see page 21-9).
Blower runs properly.Check for the following:. Clogged heater duct. Clogged heater outlet. Incorrect door position
No hot air JlowBlowel motor does not run at all.Follow the flowchart (see page 2l-l1l
Blower motor runs.Check for the following:. clogged heatet duct. Clogged blower outlet. Clogged heater valve. Faultv air mix door. Heater valve cable sdjustment lsee page 2'l-271
. Air mix control cable adjustment (see page 21-27)
. Faulty thermostat (see section lO)
. Clogged evaporator (with air conditioning). Frozen evaporator (with air conditioning)
Mode control motor does not run, or one or more modes are
inooerative.
Follow the flowchart (see page 21-14).
Recirculation control door does not change between FRESH
and RECIRCULATE.
Follow the flowchart (see page 21- 17).
21-A

Heater Unit
Replacement
CAUTION:
a All SRS electrical witing hame$os are covoed wlth
yollow insulation.
a Before disconnecting any patt of tho SRS wito har-
neas, connect tha shott connoctol(s|.
a Roplaco th€ enlire sffacted SRS harnosr a$smbly if
it has an opon cilcult or dsmaged wiring.
NOTE: The original radio h8s a coded theft protection
circuit. Be sure to get the customer's code number betors
- disconnecting the bafterY.
- removing the No. 32 (7.5 A) fuse from th€ under-
hood tuse/relav box.- removing the radio
After service. teconnect power to the radio and turn it
on, when the word "CODE" is displayed, enter the cus-
tomer's 5-digit code to restore radio operation.
1. When the engine is cool, dtain the engine coolant
from the radiator (see section 1O).
@@ oo not lomove tho radiator cap whan
the ongine is hol; tha ongino coolant is undot
pressure and could a€voralY tcald you.
2. Snap open the clamp and disconnect the heater
valve cable from the heater valve arm.
HEATER VALVE CABLE
21-22
CLAMFS
3. Disconnect the heater hoses from the heater unit'
CAUTIOII: Engino coobnt will damago paint. orick-
ly dnse any rpilled engine coolant from paintod
surfac63.
NOTE: Engine coolant will tun out when the hoses
are disconnected, drain it into a clean drip pan'
HEATER HOSES
Remove the mounting nut from the heater unit.
NOTE: When removing the mounting nut, take care
not to damage or bend the fuel pipes, brake pipes,
etc.
8 r 1,25 rn|n22 N.m 12.2 kgt.m, tO lbf'ftl
4.

5.
6.
7.
Rsmove the dashboard (see section 2O).
Remove the heater duct (see page 21-20) or theevaporator lse€ page 22-26).
Rsmove the two bolts, nut and the passenger,s SRS(}eam.
PASSEIVGER'SSRS EEAM
Disconnect the mode control motor conngctor, andremove the wire harness clip from the h€8ter unit.Remove the two mounting nuts and the haater unit.
6 r 1.0 mm9.8 .m (l.O kgt.m, 7.2 tbt.frl
MODE COI{TROL I,IOTORcol{t{€cToF
8.
8 x 1,26 mln22 N.m 12.2 kgf.m, 18 tbt.ttl
9. Install in the reverse order of removal, and:
a apply sealant to the grommets.a do not int6rchange the inlet and outl€t hoses.Make sure that the hose clamps are secure.a loosen th€ ble6d bolt on th6 engine and r€fillthetadiator and coolant r€servoir with the propsr en_gine coolant mixture (sse section 1O).Tighten the blsed boh when all the trapped air has6sc8p6d and engine coolant begins to flow fromit (see section 1O).a connect all csbles and make sure they 8re properlyadiusted (see pdge 21-271.
21-23

Troubleshooting
Reference Ghart
. Any abnormality must be correctsd before continuing the test.. Because of the precise measurgments needed, use a multimeter when testing.
Before performing any troubleshooting procedures check:. Fus€s .r No. 35120 A), *1 No. 33 (20 A), ), No. 13(7.5A). Grounds No. G401, G201, G'151, G101. Cleanliness and tightness of all connectors*1: In the under-hood fuse/relay box*2: In the under-dash fuse/relay box
SYMPTOMREMEDY
Radiator fan does not run 8t all.Perform the procedures in the flowchan (see page 22-8).
Condenser fan does not run at all.Perform the procedures in the flowchart (see page 22-10).
Both fans (radiator and condenser) do not
run for engine cooling, but they both run
with the Ay'C on.
Perform the procedures in the flowchan (see page 22-12).
Eoth fans do not run at all.Perform the procedures in the flowchart (see page 22-13).
Compressor clutch does not engage.Perform the procedures in the flowchart (see page 22-14).
Ay'C system does not come on
{compressor and both fans}.Perform the procedures in the flowchart (see page 22-16).
22-7

A/G System Service
Performance Test
The performance test will help determine if the air con-
ditioner system is operating within specitications.
Only use service equipment that is U.L.-listed and is cer-
tified to meet the requirements of SAE J2210 to remove
HFC-134a {R-134a) from the air conditioner system.
CAUTION: Exposure to air conditioner relrig€rant and
lubricant vapor ot mist can irritate eyes, nose and
throat. Avoid breathing the air conditioner rstrigerant
and lubricant vapor or mi3t.
It accidental system discharge occurs, ventilate work
area before resuming service.
R-134a service equipment or vehicle air conditioner sys-
tems should not be pressure tested or leak tested with
comPressed atr.
!@ some mixtures ot air and R'1344 hrv6
been shown to be combustibls at elovatod prsssurel
and can result in firg or explosion causing iniury 01
property damage. Ngvor usg compregsed ail to prossuro
t€st R-134a ssrvice equipment or vohicl€ air conditioner
syst€ms.
Additional health and safety information may be
obtained from the refrigerant and lubricant manufactur-
ers.
1. Connect a R-134a refrigerant Recovery/Recycling/
Charging System to the car, as shown, iollowing
the equipment manufacturer's instructions.
2. Insert a thermometer in the center vent outlet.
Determine the relative humidity and air temperature
by calling the local weather information line,
3. Test conditions:
. Avoid direct sunlight.
. Open hood.
. Open front doors
. Set the temperature control lever to MAX COOL,
the mode control switch on VENT and the recir-
culation control switch on RECIRCULATE.
. Slide the heater fan switch on MAX
. Run the engine at 1,500 rPm
. No driver or passengers in vehicle.
4. After running the air conditioning for 10 minutes
under the above test conditions. read the delivery
temperature from the thermometer in the dash vent
and the high and low system pressure from the A,/C
gauges.
Rocov.rylB.cycling/Ch!lging SFtrm.
PRESSURELOW
22-24

A/C Compressor Belt
Replacement
Automatic Transmission Type
1. Loosen the adjust pulley bracket pivot bolt and the
adjusting bolt, then remove the A/C compressor
belt from the oullevs.
2, Remove the two mounting bolts from the left front
engine mount, then pass the A,/C compressor belt
through the gap between the body and left front
en9rne mount.
ADJUSTING BOLTADJUST PULLEY BRACKETPIVOT BOLT
10 x 1.25 mm54 N.m (5.5 kgf.m,4(' rbr.ft)
Install in the reverse order of removal, and adjust
the A,/C compressor belt (see page 22-36).
"t.M'
22-35
-la ar-
Manual Transmission Type
1. Loosen the adjust pulley bracket pivot bolt and the
adjusting bolt, then remove the A/C compressor
belt from the pullevs.
2. Remove the two mounting bolts from the left front
engane mount.
Remove the engine mount nut, washer, bolt and theleft front engine mount.
Remove the A,./C comoressor belt.
ADJUSTING BOLT
ADJUST PULLEY BRACKETPIVOT EOLT
l!l',
I
14 x 1.25 mm83 N.m 18.5 kgl.m.61 tbf.ft)
LEFT FRONTENGINE MOUNT
12 x'1.25 mm69 N.m {7.0 kgf.m,51 tbf.ftt
WASHER
Install in the reverse order of removal, and adjust
the Ay'C compressor belt (see page 22-36).
NOTE: When tightening the engine mount nut,
make sure the washer is set properly on the left
front engine mount as shown.
10 x 1.25 mm54 N.m (5.5 kgtm, irc lbf.ft)