Page 143 of 1395

Cylinder Head
Installation
Installthe cylinder head in the reverse order of removal:
1. Clean the cylinder head and block surfaces.
2. Clean the oil control orifice. Install the cylinder headgasket, dowel pins and the oil control orifice on thecylinder block. Always use a new cylinder head gas-ket.
CYLII{DER HEADGASKETR€place.
DOWEL PIN
O.RINGRoplace.
DOWELPIN
OIL CONTBOLORIFICEClean.
Apply clean engine oil to the bolt threads and underthe bolt heads.
4. Tighten the cylinder head bolts in two steps. In thefirst step tighten all bolts, in sequence, to about 29
N.m {3.0 kgf.m,22 lbf.ft); in the finat step, tighten inthe same sequence to 85 N.m (8.7 kgf.m,63 lbf.ft).
Use a beam-type torque wrench. When using a pre-
set-type torque wrench, be sure to tighten slowly
and do not overtighten.
lf a bolt makes any noise while you are torquing it,loosen the bolt, and retighten it from the 1st step.
CYLINDER HEAD BOLTS TOROUE SEOUENCE:
Tighten the intake manifold mounting bolts (see
page 6-21).
Install the exhaust manifold bracket. and tighten thenew self-locking nuts (see page 6-20).
6-30
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Page 183 of 1395
Intake Manifold
Replacement
NOTE:
. Use new O-rings and gaskets when reassembling.
. Check for folds or scratches on the surface of the gasket.
. Replace with a new gasket if damaged.
'97 - 98 models:
INTAK€ MANIFOLDReplace if cracked orif mating surfaces areoamageo,
INTAKE AIRTEMPERATURE
{IATI SENSOR22 N.n 12.2 kgl.m,16 rbf.ftl
8 x 1.25 mm22 N.m 12.2 kgtm.'t6 tbf ft)
8 x 1.25 mm22 N.m |.2.2 kgl.rn,'16 tbt ftl
I x 1.25 mm24 N m 12.4 kgf m.17 tbf.ft)
INTAKBRAC}
INTAKE MANIFOLOBRACKET B ('98 modell8 x 1.25 mm23 N m (2.3 kgt m,17 tbf.ftlI x 1.25 mm24 N.m 12.4 kgf.m,17 tbf.ft)
8 x 1.25 mm24 N.m (2.4 kgf.m,17 tbf.ft)
9-2
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Page 184 of 1395
'99 - O0 modol3:
6x1.0mm9.8 N.m 11.0 kg{.m,7.2 tbtltl
NESONATOR
6x1.0mm9.8 N.m {1.0 kgf.m,7.2 rbr.ftt
O-RINGReplace.Apply oil to O-RINGbetore installing.
RESONATORCHAMBERBRACKET
GASKETReplace.
IAT SENSOR2:2N.m l2.2kgl.n,16 tbtftl
O.RINGReplace.
l
O.RINGReplace.
8 x 1.25 mm24 N.m 12.4 kgt m,17 tbt frl
INTAKE MANIFOLDReplace it cracked orif mating surfaces areoamageo.
8 x 1.25 mm22 N.m 12.2 kgl.m,16 rbf.ftt
IAC VALVE
8 x 1.25 mm23 N.m (2.3 kgf.m,17 tbf.ft,
INTAKE MANIFOLD
22 N.m 12,2 kgl.m,16 rbfftl
("\"- K\*}Gt
W\qu u
N,1\J 'n\
.a,,-\\J "
G)s
BRACKET
9-3
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Page 185 of 1395
Exhaust Manifold
Replacement
NOTE:
. Use new gaskets and self-locking nuts when reassembling.
. Check for folds or scratches on the surface of the gasket.
. Replace with a new gasket if damaged.
'97 - 98 U.S. models (Calilornia):
8 x 1.25 mm31 N.m (3.2 kgf.m, 23 lbtft)Replace.
I x 1.25 mm24 N.m (2.4 kgl.m,1? tbf.ft)
8 x 1.25 mm24 N.m (2.i1kgt.m,
17 lbf.ftl
EXHAUSTMANIFOLO
10 x 1.25 mm44 N.m 14.5 kgf.m, 33 lbf.ft)
SELF.LOCKING NUT8 x 1.25 mm31 N m 13.2 kgt.m, 23 lbt'ft)Replace.
EXHAUST MANIFOLDBRACKET
10 x 1.25 mm44Nm{4.5kg{.m.33 lbf.ftl
NN
9-4
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Page 186 of 1395
'97 - 98 U.S. models {Except California):'99 - 00 models:
8 x '1.25 mm31 N.m {3.2 kgl.m,23 lbl.ft)Beplace.
8 x 1.25 mm31 N.m {3.2 kgf.m.23 lbf.ft)Replace.
MANIFOLD
6x1.0mm9.8 N m 11.0 kgf.m, 7.2 lbf.ft)
COVER
(v/\
NL-]\ r-------.\\' 'r
\F=
\\/ ,l
BRACKET
44 N.m {4.5 kgf.m, 33 lbtftl
9-5
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Page 192 of 1395
Radiator
1.
2.
3.
4.
Replacement
CONDENSERFAN,/SHROUDASSEMBLY
Drain the engine coolant.
Remove the upper and lower radiator hoses, and
ATF cooler hoses.
Disconnect the fan motor connector.
Remove the radiator upper bracket, then pull up the
raotalor,
5. Remove the fan shroud assemblies and other parts
from the radiator.
6. lnstall the radiator in the reverse order of removal.
NOTE:
. Set the upper and lower cushions securely.
. Fill the radiator with engine cooiant and bleed the air.
RADIATOR CAP
RADIATOR
6x1.0mm9.8 N.m 11.0 kgf.m,7.2 tbl.trl
6x1.0mm7 N.m (0.? kgd.m, 5 lbl.ftl
UPPER MDIATOR HOSE
Reler to section 14when installing.
DRAIN PLUG
LOWER CUSHION
LOWERTOR HOSE
RADIATORASSEMBLY
6x1.0mm7 N.|n 10.7 kgt.m,5 tbt.ftl
rriItriiii
10-4
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Page 319 of 1395

Secondary Heated Oxygen Sensor (Secondary HO2S) (Sensor 2)
The scan tool indicates Diagnostic Trouble code (DTC) P0137: A low voltage problem in the secondary Heated
Oxygen Sensor (Secondary HO2S) (Sensor 2) circuit.
SECONDARY HO2S ls.nlor 2)4P CONNECTOB lC721l
Wire side of lemale terminals
(cont'd)
11-117
The MIL hrs been reported on.DTC P0137 is stored.
Problem veritication:1. Do the ECM/PCM Reset Pro'cedure.2. Start the engine. Hold theengine at 3,000 rpm wilh no
load (in Park or neutral) untalthe radiator {an comes on,3. Check the Secondary H02S
lSensor 2) output voltage at3,000 rpm with the scan tool.
lnlermittent failure, 3ystem i5 OK
at this time. Check tor Poor con'
noction3 or loose wires at C127
{locatod on ECM/PCM bracket},C721 (Secondary HO2S, Sensor2l and at the ECM/PCM.
Does the voltage stay at 0.3 V
or less?
Check for a short in the SecondaryHO2S:1. Turn the ignition switch OFF.2. Disconnect the SecondaryHO2S lSensor 2) 4P connector.3. Start the engine.4. Check the Secondary HO25(Sensor 2) output with the scantool.
Check lor a short in the wire(SHO2S linel:1. Turn the ignition switch OFF.2. Disco n nect the ECM/PCMconnector {D (16P}, A (32P}').
3. Check for continuity betweenthe Secondary HO2S (Sensor
2i 4P connector terminal No. 1and body ground.
Reoair short in the wire b€twoen
rhe ECM/PCM |D14, 423*l and
the Secondary HO2S {Sensor 2).
Substitute a known-good ECM/PCM and rocheck. lf symptom/indication goes away, replacethe original ECM/PCM.
*: '98 - 00 modeis
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Page 384 of 1395

Fuel Supply System
Fuel Filter
Replacamont
. Do not smoke whilo working on tuol syslom,Keep open flame away from your work area.. While rsplscing ths fuolfihor. bo careful to ko€p a safedistanca betweon baftsry tarminals and any tools,
The fuel filter should be replaced whenever the fuel Dres-sure drops below the specified value* with the fuel pres-
sure regulator vacuum hose disconnected and pinchedl
after making sure that the fuel pump and the fuel pres-
sure regulator are OK.
i: '97 - 98 modelsi 260 - 310 kPa 12.7 - 3.2 kgllcm2,3g -
46 psil'99 - 00 mod6fs: 270 - 320 kP8 12.8 - 3.2 kgilcm2, 40 -
il7psi)
1, Place a shop towel under and around the fuel filter.
2. Relieve fuel pressure (see page l1-l7B).
3. Remove the engine wire harness bracket and power
steering feed hose clamp.
4. Remove the banjo bolt and the fuel feed pipe whilesupporting the fuel filter with another wrench. assnown.
Remove the fuelfilter clamp and fuel filter,
Install the new fuel filter in the reverse orde. ofremoval, and note these items:
. When assembling, use new washers as shown.. Clean the flared joint of high pressure nosesthoroughly before reconnecting them.
11-182
12 mmSEAUNGBOLT33 hl.m
l3.a kgt m,25 lbt frl
9.8 N.|n11.0 kgf'm,t.2 tbt.ftl
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