1994 HONDA INTEGRA air temperature

20. Connect the vehicle speed sensor (VSS), mainshatt
speed sensor and counterchalt speed sensor con
nectors.
VEHICLE SPEED SEiISORCONNECTOR
21. Connect the lock-uD control solenoid valve connec-
tor and shift control solenoid valve connector. then
clamp the lock-up control solenoid harness with the
harness stay.
22. Connect the transmission ground cable.
LOCK-UP CONTROLSOLENOID VALVE HARNESS STAY
23. Connect the starter cable to the starter motor, and
install the cable holder.
NOTE: When installing the starter motor cable,
make sure that the crimped side of the ring terminal
is facing out (see section 23).
CABLEHOLDER
6x 1.0 mm'12 N.m (1.2 kgf'm,8.7 lbt.tl)
24.
N.mlO.9 ksr.m, 7 tbr-rtt
STARTER CAELE
Install the air cleaner housing assembly and intake
arr oucl.
AIR CLEANER HOUSINGASSEMBLYINTAKE AIRDUCT
25.
26.
24.
29.
30.
Retill the transmission with ATF(see page '14-93).
Connect the battery positive ( + ) and negative ( - )
cables to the battery.
Start the engine. Set the parking brake, and shift the
transmission through all gears three times.
Check shitr cable adjustment as described on page
14-171 .
Check that front wheel alignment (see section 18).
Let the engine reach operating temperature (the cool-
ing tan comes on) with the transmission in S or @position, then turn it off and check the fluid level.
31. Road test as described on page 14-9o and 91.
14-167

Grating noise from pump
Pump gear noise
Check fluid level.lf low. fill reservoir to properlevel, and check tor l€aks.Tighten or roplac6 as n€cessary.
Check for crushed suction hoseor a loose hose clamp allowingair into the system.Tighten or replace as noce$ary.
NOTE: Pump noise up to 2 - 3minutes alter starting in coldweather (-20'C, -4'F or colder) isnormat,Comparo pump noise at operat-in9 temperature to another car.
lf pump noise is abnormally loud,chgck the pump ball b€aring andany pans (see page 17-351.
17-15

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

lllustrated Index
CAUTION:
a All SRS electrical wiling harnesses are covered with
y€llow insulation.
a Bafore disconnecting any pan of the SRS wile har-
ness. connect the sholt connectorlsl.
a Replace the sntire aflected SRS halness assembly if
it has an open circuit or damaged wiring.
NOTE: The original radio has a coded thelt protection
circuit. Be sure to get the customer's code number before- disconnecting the battery.- removing the No. 32 (7.5 Al fuse lrom the under-
hood fuse/relav box.- removing the radio.
After service, reconnect 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.
BLOWER UNITReplacement, page 21-2OOverhaul, page 21-21HEATER UNITRepfacement, page 2l 22Overhaul, page 21-24
RECIRCULATION CONTROL MOTORTest, page 21-29Replacement, page 21 29I{EATER VAIVE CABLEAdjustment, page 21-27
BLOWEN RESISTORTest, page 21-9
AIR MIX CONTROLCABLEAd,ustment, page 21-27Replacement. page 21-26
a/c swrTcH(wirh A/clTest, page 22-20
RECIRCULATIONCONTROL SWITCHTest, page 21-31
HEATER FANswtTcHTest, page 2'l-3O
MODE CONTROL MOTORTest, page 21-28Repfacement, page 21'28
MODE CONTROL SWITCHTest, page 21'31
HEATER CONTROL PANELRepf acement, page 21 -25
Overhaul, page 21-26
TEMPERATURE CONTROLLEVER(Adjustmonl: See AIR MIXCONTROL CABLE}
SRS MAIN HARNESS
W,
21-2
I

Heater Control Panel
Overhaul
HEATER FAN SWITCHTest, page 21-30
AIR MIX CONTROL CABLE
Adjustment, page 21-27
Air Mix Control Cable Replacom€ni
1. Remove the ait mix control caDle'
2. Hook the tip of the new air max control cable to the temperature control lever, and push the cable housing until it
is locked.
AIR MIX CO]IITROL CABLE
NoTE:Alterassemb|y,checkthatthetemperaturecontro||eve's|idessmooth|ythroughthe'u||strokefromright
to left.
21-26

Heater Valve Gable
Adjustment
Disconnect the heater valve cable from the heatervalve arm and the clamp, and from the heater con-trol arm and the clamp.
Set the temperature control lever to MAX. HEAT.
Turn the heater control arm as shown. and connectthe end of the heater valve cable to the heater con-trol arm.
Gently slide the heater valve cable housing back fromthe end enough to take up any slack in the heatervalve cable, but not enough to make the tempera-ture control lever move. Hold the end of the heatervalve cable housing against the stop, then snap theheater valve cable housing into the clamp.
2.
Air Mix Control Cable
Adjustment
'l . Disconnect the air mix control cable from the air maxcontrol arm and the clamp.
2. Set the temperature control lever to MAX, HEAT.
3, Turn the air mix control arm as shown. and connectthe end of the air mix cont.ol cable to the air mixcontrol arm.
4. Gently slide the air mix control cable housing backtrom the end enough to take up any slack in the airmix controlcable, but not enough to make the tem-pe.ature control lever move, then snap the air mixcontrol cable housing into the clamp.
NOTE: The heater valve cable should always be ad-justed whenever the air mix control cable has beendisconnected.
HEATER COIITBOLARMHEATEB VALVECABLE
AIR MIX CONTROLCABLEAIB MIX CONTROLARM
5. Turn the heate. valve arm as shown, and connectthe end of the heater valve cable to the heater valve
arm.
Gently slide the heater valve cable housing back from
the end enough to take up any slack in the heatervalve cable, but not enough to make the tempera-ture control lever move, then snap the heater valve
cable housing into the clamp,
NOTE: The air mix control cable should always beadjusted whenever the heater valve cable has beendisconnected.
CLAMP
21-27

Description
Outline
The air conditioner system delivers cooled air into the passenger compartment by circulating refrigerant through the sys-
tem as shown below.
CONDENSOR
This car uses HFC-134a {R-134a) refrigerant which does not contain chlorofluorocarbons Pay attention to the following
service items:
. Do not mix refrigerants CFC-I2 (R-l21 and HFC-134a (R-134a) They are not compatible'
. Use onty the recommended potyatkytenegtycol {PAG) refrigerant oil (ND-OIL 8: P/N 38899-PR7-A01) designed for the R-
134a compressor. Intermixing the recommended (PAG) refrigerant oil with any other refrigerant oil will result in com-
pressor tailure.
.A||lvcsystemparts(compressor.dischargeIine,suotionIine,evaporator,condenser.receiver/dryer,expansionva|ve.
o-ringsforioints}havetobeproperforre'rigerantR-l34a.DonotconfusewithR.l2parts.
. Use a halogen gas leak detector designed for refrigerant R-134a'
. R-.12 and C-l34a refrigerant servicing equipment are not interchangeable. Only use a Recovery/Recyclins/Charging
System that is U.L.-listed and is certifLd to meet the requirements of sAE J2210 to service R-134a air conditioning sys-
rems.
. Always recover the refrigerant R-134a with an approved Recover/Recycling/Charging System before disconnecting any
A,/C fitting.
coMpRESsoR -coNDENSER - RECEIVER/DRYER
High temperature/
high pressure gas
Suction and comPression
Less moisturized
low pressure vaPor
High temperature/ Traps debris High temperature/
hilh pressure liquid and removes high pressure liquid
Radiation of heat molsture
More liquidified
low Pressure vaPor
Absorption of heat
EVAPORATOR <-'----------.- EXPANSION VALVE
EVAFORATOR
22-6

Pressure Test Chart
NOTE: Performance Test on page 22-24.
TEST RESULTSRELATED SYMPTOMSPROAABLE CAUSEREMEDYDischsrge(high) pressureabnormallynrgn
AftEr stopping compressor, pressuredrops to about 200 kPa (2.0 kof/cmr. 28psi) quickly, and then falls gr;dua y.
Air in systemRecover, evacuate and recharqowith sDecified amount. -
Evacuation: see Daqe 22-38Charoino: se6 D;op--2?-?qNo bubbles in sight g16ss when con-denser is cooled bv water.E-\cessive refrigerant in sys-Recover, evacuate and recharqewith specitied amount. -
Reduced or no air flow through con-oenser.Clogged condenser orradiato. finsCondenser o. radiator fannot working properly
CleanCheck voltage and fan rpmunecK lan ofeclton
Line to condenser is excessivelv hot.Restricted flow of refriger-ant In syslem. Restricted lines
Discharge pres-su re abnormal-Excossive bubbles in sight glass;condenser is not hot.Insuff icient refrigerant insyslemCheck for leakCharge systemHigh and low pressures are balancedsoon after stopping compressor. Lowside is higher than normal,
Faulty compressor dis-cnarge vaNsFaulty compressor seal
Replace the compressor.
Outlet of expansion vslve is not frost-ed, low pressure gauge indicates vacu-um,
. Faulty expansion valve. Moisture in sysiem. Replace. Recover, evacuate and recharoewith specified amount. -
Suction (lowlpressureabnormally low
Excessive bubbles in sight glass;conqenser rs not hot_Insuff icient ref rigerantReoair the leaks.Reaover, evacuate and recharoewith sDecifisd amount. -
Charqe as required.Expansion valve is not trosted and lowpressur€ line is not cold. Low pressuregauge Inorcates vacuum.
Frozen expansion valveFaulty expansion valveReplace the expansion valve.
Discharge temperaturg is low and theair flow from vents is restricted.Froren evaporatorRun the tan with comoressor oftthen check Ay'C thermostat.Expansion valve is frost€d.Clogged expansion valveCl€an or replace.Receiver/dryer outlet is cool and inletisrryarm (should be warm during oper-Clogged r€ceiver/dry€rReplace
Suction pres-su re abnormal-ly high
Low pressure hose and check joint arecooler than the temDeraturo aroundevaDorator.
'
ffin"nsion u"lu" oD"n too
. Loose expansion capillary
Repair or replace.
Suction pressure is lowered when con-denser is cooled by water,Excessive refrigerant in sys-remRecover, evacuate and recharqewith sDecifi€d amount. -
High and low pressure are equalizedas soon as the compressor is stopped,and both gauges fluctuate while run-nrng.
Faultv oasketFaulty Figh pressure valveForeign particle stuck inhigh pressure valve
Replace the compressor.
Suction anddischarg€ pres-sufes aonor-mally high
Reduced air flow through condenser.. Clogged condenser orradiator fins. Condenser or radiator fannot working properly.
Clean condenser and radiatorCheck voltage and fan rpmCheck fan direcrion
No bubbles in sight glass when con-cl€nser is cooled bv water.Excessive refrigerant in sys-remRgcover, €vacuate and recharoewith sp€cified amount.Suction snddischarge pres-su r€ abnormal-
Low pressure hose and metal endafeas are cooler than evaDorator.Clogged or kinked tow pre€-sure nos€ pansFepair or replace.
Temperature around expansion valveis too low compared with that aroundrecerver/orver.
Clogged high pressure lineRepair or replace.
Refrig€rantleaksCompressor clutch is dirty.Compressor shaft seal leak-IngReplace the comDressor.
Compressor bolt(s) are dirty.Leaking around bolt(s)Tighten bolt(sl or replace com-pressor.Compressor gasket is wet with oil. IGasket leakingReplace the compressor.
22-23