1998 ACURA INTEGRA radiator cap

Cooling
lllustrated Index ........
Radiator
Replacement ..............
Engine Coolant Refilling and
Bleeding
Cap Testing
Pressure Testing
Thermostat
Replacement ..............
Testing
Water Pump
lllustrated Index .........
Inspection
Replacement ...............
10-2
10-5
10-6
10-8
10-8
10-9
10-9
10-10
10-11
10-11

lllustrated Index
!$!!@ sv"t"m is under high plessure when the
engine is hot, To avoid dangei of releasing scalding
engine coolant, remove the cap only when engine is cool.
Total Cooling System Capacity {lncluding heater and
leservoir)
Bl8Bl engine:
MIT: 6.4 l. {6.8 US qt, 5.6 lmp qt)
Ant 6.7 t (7.1 US qt,5.9 lmp qt)
B18C1, 818C5 engines:
Mfi:6.7 t (7.1 US qt, 5.9 lmp qt)
CAUTION: lf any engine cgolant spills on painted por-
tions of the body, rinse it off immediately.
NOTE:
a Check all cooling system hoses for damage, leaks or
deterioration and replace il necessary.
a Check all hose clamps and retighten if necessary.
a Use new O-rings when reassembling.
RADIATOREngine coolant refilling and bleeding,page 10-6Leak test, page 10 8Inspecl soldered joints andseams for leaks,RAOIATOR CAPPressure test, page 10-8
UPPERRADIA
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CONDENSERFAN SHROUD{s€o section 22)
6 x 1.0 mm7 N.m {0.7 kgl.m, 5 lbf'ftl
5x0.8mm4.4 N.m (0.45 kgl.m,3.3 tbt.ft)
Blow out dirt from betweencore fins with compressed air.lf insects, etc., are cloggingradiator, wash them o{f withlow paessure water,
TOR HOSE
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ATF COOLERHOSES181881 €ngin
S!g
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COOLANTRESERVOIR
M/T: Manual lransmissionA/T: Automatic transmissionATF: Automatic t.ansmission fluid
FAN SHROUD
10-2

Radiator
Replacement
1.
2.
Drain the engine coolant.
Remove the upper and lower radiator hoses, and ATF
cooler hoses.
Disconnect the lan motor connectors.
Remove the radiator upper brackets, then pull up the
radiator.
6 x 'l .0 mm9,8 N.m {1.O kgf.m,7.2 tbl'ltl
UPPER RADIATORHOSE
6 x 1.0 mm9.8 N.m (1.0 kgf.m,7.2 tbt'trl
LOWERCUSHION
CONDENSERFAN SHROUO
FAN MOTOR
ATF COOLERHOSES
COOLING FANSHROUDO-RINGReplace.
6 x 1.O mm9.8 N.m 11.0 kgf.m,7 .2 tbl.ftl
LOWER RADIATORHOSE
FAN MOTORCONNECTOR
5. Remove the tan shroud assemblies and other parts
from radiator.
Install the radiator in the reverse order of removal:
NOTE:
a Set the upper and lower cushions securely.
a Fill the radiator and bleed the air.
UPPER BRACKETAND CUSHION
RADIATOR CAP
u
DRAIN PLUG
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HI
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Radiator
Engine Coolant Refilling and Bleeding
CAUTION: When pouring engine coolant, be sure to shut
th6 relay box lid and not to l€t coolant spill on th6 el€c-
trical parts or the paint. lf any coolant spills, rinse it off
immediately.
1. Slide the heater temDerature control lever to maxi-
mum heat.
Make sure the engine and radiator are cool to the
touch.
2. Remove the radiator cap.
3. Loosen the drain plug, and drain the coolant.
4. Remove the drain bolt from the cvlinder block.
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ENGINE DRAIN EOLT78 N.m {8.0 kgt'm,54 lbt.ft)Apply liquid gasket tobolt thread when installing.WASHERReplace.
10-6
5. Apply liquid gasket to the drain bolt threads, then
reinstall the bolt with a new washer and tighten it
securely.
6. Tighten the radiator drain plug securely.
7. Remove, drain and reinstall the reservoir. Fillthe tank
halfway to the MAX mark with water, then up to
MAX mark with antifreeze.
COOLANTRESERVOIR
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8.Mix the recommended antifreeze with an equal
amount of water in a clean container.
NOTE:
a Use only genuine Honda antifreeze/coolant.
a For best corrosion protection, the coolant concen-
tration must be maintained year-round at 500,6
minimum. Coolant concentrations less than 507o
may not provide sufficient protection against cor,
rosion or freezing.
a Coolant concentrations greater than 60% will im-
pair cooling efliciency and are not recommended.
CAUTION:
a Do not mix different brands of anti-lrcezel
coolants.
a Do not use additional rust inhibitots or anti-tustproducts; they may not be compatible with the
coolant.
Engine Coolant Refill Capacity [including reservoir
{0.6 { (0.6 US qt, 0.5 lmp qr)ll:
81881 engine:
Ml7:1-1t {/t.6 US qt. 3.9 lmp qtl
818B1, 818C1 engin€s:
AlTt 1.7 | 15.0 US qt, 4.1 lmp qt)
818C1, B18C5 engines:
MlTt 1.7 t 15.0 US $, 4.1 lmp qtl
FILLER NECK
9.Pour coolant into the radiator up to the base of the
tiller neck.
10. Startthe engine and let jt run until itwarmsup(the
radiator fan comes on at least twice).
1 1 . Turn olf the engine. Check the level in the radiator,
add coolant if needed.
'12. Put the radiator cap on tightly, then run the engine
again and check for leaks.
10-7

Cap Testing
1.Remove the radiator cap, wet its seal with engine
coolant, then install it on the pressure tester.
Apply a pressure of:
93 123 kPa(0.95 1.25 kgf/cm', 13.5 17.8 psi)
Check for a drop in pressure.
2.
3.
AOAPTOR(for small cap)
PRESSURE TESTER
Radiator
Pressure Testing
1. Wait until the engine is cool, then carefully remove
the radiator cap and fill the radiator with engine
coolant to the top ot the filler neck.
2. Attach the pressure tester to the radiator and apply
a pressure of:
93 123 kPa(O.95- 1.25 kgf/cmr, 13.5-'17.8 psi)
3. Inspect lor engine coolant leaks and a drop inpressure.
4. Remove the tester and reinstall the radiator cap.
NOTE:
a Check for engine oil in the engine coolant and/orcoolant in the engine oil.a Check for ATF in the engine coolant and/orcoolant in the ATF {A/T}.
\
PRESSURE TESTES
AOAPTOR{for small cap)

Three Way Catalytic Converter (TWC)
lT042O I Th" """n tool indicates Diagnostic Trouble Code (DTC) P0420: catatyst system efficiency below threshold.
Descriotion
This system evaluates the catalyst's capacity by means of the HO2S (Primary and Secondary) output during stable drivingconditions. lf deterioration has been detected during three consecutive driving cycles, the MIL comes on and DTC p0420 willbe stored.
NOTE: lf some of the DTCS listed below are stored at the same time as DTC PO42O. troubleshoot those DTCS tirst. thentroubleshoot DTC P0420.
P0136, P0139: Secondarv HO2S
P0141:Secondary HO2S Heater
Possible Cause
. TWC Deterioration
. Exhaust system leakage
Troubleshooting Flowchart
Problem verification:1. Do the ECM Reset Procedure.2. Start the engine. Hold theengine at 3,000 rpm with noload (in Park or neutral) untilthe radiator fan comes on,3. Connect the SCS service con,
4. Test drive 40 - 55 mph (64 -
88 km/h) for approx. two min-utes, Then decelerate Ior atleast 3 seconds with the throttle completely closed. Thenreduce the vehicle speed to35 mph (56 km/h), and try tohold it until the readinesscode comes on.
I
- The MIL has been report€d on.- OTC P0420 is stored.
Intermittent tailure, sFtem is OKat this time.ls DTC P0420 indicated?
Check the TWC {s6e 3ection 91.lf necessary, reolace the TWC.
11-139

Checking/Changing
Checking
NOTE: Check the fluid level with the engine at normal
operating temperature (the radiator fan comes on).
1.
2.
Park the vehicle on level ground. Turn off the
eng I ne.
Remove the dipstick (yellow loopl from the trans-
mission, and wipe it with a clean cloth.
Insert the dipstick into the transmission.
Remove the dipstick and check the fluid level.
should be between the u9Der and lower marks.
lf the level is below the lower mark. pour the recom-
mended fluid* into the tube to bring it to the upper
mark.
DIPSTICK
UPPERLOWER
Insert the dipstick back into the transmission in the
direction shown.
DIPSTICK
Changing
DRAIN18 x 1.5 mm49 N.m 15.0 kgt.m, 36 lbf.ftl
Bring the transmission up to operating temperature
by driving the vehicle. Park the vehicle on level
ground, turn the engine off, then remove drain plug
and drain the automatic transmission fluid (ATF).
Reinstall the drain plug with a new sealing washer,
then refill the transmission with the recommended
fluid* to the upper mark on the dipstick.
Automatic Transmission Fluid Capacity:
2.7 t 12.9 US qr,2.1lmp qt) at change
5.9 / 16.2 US $. 5.2 lmp qt) at overhaul
Recommended Automatic Transmisgion Fluid:
Genuine Honda Premium Formula Automatic
Transmission Fluid (ATE*
* Always use Genuine Honda Premium Formula
Automatic Transmission Fluid (ATF). Using a non-
Honda ATF can affect shift qualitv
1.
WASHERReplace.
FRONT
Installthe dipstick in the extentof the direction shown.
Fluid Level
V*Y
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, 14-98
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