INSTALLATION
(1) Reverse the above procedure for installation.
ENGINE COOLANT TEMPERATURE SENSORÐ3.0L
The sensor is installed next to the thermostat
housing (Fig. 3).
WARNING: HOT, PRESSURIZED COOLANT CAN
CAUSE INJURY BY SCALDING. COOLING SYSTEM
MUST BE PARTIALLY DRAINED BEFORE REMOV-
ING THE COOLANT TEMPERATURE SENSOR.
REFER TO GROUP 7- COOLING.
REMOVAL
(1) With the engine cold, drain coolant until level
drops below cylinder head. Refer to Group 7, Cooling
System.
(2) Disconnect coolant sensor electrical connector.
(3) Remove coolant sensor.
INSTALLATION
(1) Install coolant sensor. Tighten sensor to 7 N´m
(60 in. lbs.) torque.
(2) Attach electrical connector to sensor.
(3) Fill cooling system. Refer to Group 7, Cooling
System.
CRANKSHAFT POSITION SENSOR
REMOVAL
(1) Raise and support vehicle.
(2) Disconnect crankshaft position sensor electrical
connector from the wiring harness connector (Fig. 4).
(3) Remove crankshaft position sensor retaining
bolt.
(4) Pull crankshaft position sensor straight up out
of the transaxle housing.
INSTALLATION
NOTE: If the removed sensor is to be reinstalled,
clean off the old spacer on the sensor face. A NEW
SPACER must be attached to the sensor face before
installation. If the sensor is being replaced, confirm
that the paper spacer is attached to the face of the
new sensor (Fig. 5).
(1) Install sensor in transaxle and push sensor
down until contact is made with the drive plate.
While holding the sensor in this position, and install
and tighten the retaining bolt to 11.9 N´m (105 in.
lbs.) torque.
(2) Raise and support vehicle.
(3) Connect crankshaft position sensor electrical
connector to the wiring harness connector.
THROTTLE POSITION SENSOR
Refer to Group 14, Fuel Injection Section, for
Removal/Installation.
Fig. 3 Manifold Absolute Pressure Sensor
Fig. 4 Crankshaft Position Sensor Connector
Fig. 5 Crankshaft Position Sensor and Spacer
NSIGNITION SYSTEM 8D - 25
REMOVAL AND INSTALLATION (Continued)
WIPER ARM
CAUTION: The Driver side wiper arm must be parked
above the passenger side. Failure to do so will result
in damage to the arms, blades, or system.
REMOVAL
(1) Disengage the clip holding outside end of the
wiper arm pivot cover to the wiper arm.
(2) Lift the arm cap upward.
(3) Remove the nut holding wiper arm to the wiper
pivot.
(4) Using a suitable two jaw puller, separate the
wiper arm from the wiper pivot (Fig. 11).
INSTALLATION
(1) Verify that the wiper motor and linkage are in
the park position.
(2) Place the wiper arm in position over the wiper
pivot (Fig. 12). Refer to Alignment.
(3) Install the nut to hold the wiper arm to the
wiper pivot. Tighten nut to 35 N´m (26 ft. lbs.).
(4) Push the arm cap cover down.
(5) Engage clip to the hold outside end of wiper
arm pivot cover to the wiper arm.
WIPER UNIT
REMOVAL
(1) Remove the wiper arms.
(2) Remove the cowl cover. Refer to Group 23 Body
for proper procedure.
(3) Release the hood latch and open hood.
(4) Disconnect the positive lock on the wiper unit
wire connector (Fig. 13).
(5) Disconnect the wiper unit wire connector from
the engine compartment wire harness.
(6) Disconnect the windshield washer hose from
coupling inside unit.(7) Disconnect the drain tubes from nipples on bot-
tom of the wiper unit.
(8) Remove nuts holding wiper unit to lower wind-
shield fence.
(9) Remove bolts holding the wiper unit to the
dash panel (Fig. 14).
(10) Lift wiper unit from weld-studs on lower
windshield fence.
CAUTION: Do not allow wiper unit to rest on brake
master cylinder reservoir, damage to brake system
can result.
(11) Remove wiper unit.
INSTALLATION
For installation, reverse the above procedure.
WIPER LINKAGE
REMOVAL
(1) Remove the windshield wiper unit from vehicle.
Fig. 11 Wiper Arm Removal
Fig. 12 Wiper Arm Adjustment
Fig. 13 Wiper Unit Wire Connector
NSWINDSHIELD WIPERS AND WASHERS 8K - 7
REMOVAL AND INSTALLATION (Continued)
need to be reground to prevent seal damage when
the valve is installed.
VALVE INSTALLATION
(1) Coat valve stems with clean engine oil and
insert in cylinder head.
(2) Install new valve stem seals on all valves using
a valve stem seal tool (Fig. 21). The valve stem seals
should be pushed firmly and squarely over valve
guide.CAUTION: When oversize valves are used, the cor-
responding oversize valve seal must also be used.
Excessive guide wear may result if oversize seals
are not used with oversize valves.
(3) Install valve springs and retainers. Compress
valve springs only enough to install locks, taking
care not to misalign the direction of compression.
Nicked valve stems may result from misalignment of
the valve spring compressor.
CAUTION: When depressing the valve spring
retainers with valve spring compressor the locks
can become dislocated. Check to make sure both
locks are in their correct location after removing
tool.
(4) Check the valve spring installed height B after
refacing the valve and seat (Fig. 20). Make sure mea-
surements are taken from top of spring seat to the
bottom surface of spring retainer. If height is greater
than 38.75 mm (1.525 in.), install a .762 mm (0.030
inch.) spacer under the valve spring seat to bring
spring height back within specification.
(5) Install rocker arm shafts as previously
described in this section.
(6) Checking dry lash. Dry lash is the amount of
clearance that exists between the base circle of an
installed cam and the rocker arm roller when the
adjuster is drained of oil and completely collapsed.
Specified dry lash is 1.17 mm (0.046 in.) for intake
and 1.28 mm (0.050 in.) for exhaust. After performing
dry lash check, refill adjuster with oil and allow 10
minutes for adjuster/s to bleed down before rotating
cam.
REMOVAL AND INSTALLATION
ENGINE MOUNTÐFRONT
REMOVAL
(1) Support the engine and transaxle assembly
with a floor jack so it will not rotate.
(2) Remove the front engine mount through bolt
from the insulator and front crossmember mounting
bracket (Fig. 22).
(3) Remove six screws from air dam to allow
access to the front mount screws.
(4) Remove the front engine mount screws and
remove the insulator assembly.
(5) Remove the front mounting bracket, if neces-
sary (Fig. 22).
INSTALLATION
(1) Reverse removal procedure for installation and
tighten fasteners in this order. For engine mount
Fig. 19 Refacing Valve Seats
Fig. 20 Checking Spring Installed Height and Valve
Tip Height Dimensions
Fig. 21 Valve Stem Oil Seal Special Tool C4745
NS2.4L ENGINE 9 - 23
SERVICE PROCEDURES (Continued)
ENGINE ASSEMBLY
REMOVAL
(1) Perform fuel pressure release procedure. Refer
to Group 14, Fuel System for procedure. Remove fuel
line to fuel rail.
(2) Disconnect battery.
(3) Remove Air cleaner and hoses.
(4) Drain cooling system. Refer to Group 7, Cooling
System for procedure.
(5) Remove upper radiator hose and remove radia-
tor fans. Refer to Group 7, Cooling System for proce-
dure.
(6) Remove lower radiator hose.
(7) Disconnect automatic transmission cooler lines
and plug, if equipped.
(8) Disconnect transmission shift linkage.
(9) Disconnect throttle body linkage.
(10) Disconnect engine wiring harness.
(11) Disconnect heater hoses.
(12) Discharge Air Conditioning System. Refer to
Group 24, Air Conditioning for procedure.
(13) Hoist vehicle and remove right inner splash
shield. Remove wheels and tires.
(14) Loosen power steering belt for pump removal.
Refer to Group 7, Cooling System for procedure.
(15) Remove axle shafts. Refer to Group 2, Suspen-
sion and Driveshafts for procedure.
(16) Disconnect exhaust pipe from manifold.
(17) Remove front and rear engine mount brackets
from the body.
(18) Remove bending braces and front engine
mount bracket. Remove transmission inspection
cover.
(19) Mark flexplate to torque converter and
remove torque converter bolts.
(20) Install front engine mount bracket.
(21) Lower vehicle.
(22) Remove power steering pump. Set pump
aside.
(23) Remove A/C lines at compressor and cap.
(24) Remove ground straps to body.
(25) Raise vehicle enough to allow engine dolly
Special Tool 6135, cradle Special Tool 6710 with
Posts Special Tool 6848 and Adaptor Special Tool
8130 to be installed under vehicle (Fig. 27).
(26) Loosen cradle posts to allow movement for
proper positioning. Locate two rear posts (right side
of engine) into the holes on the engine bedplate.
Locate the two front posts (left side of engine) on the
front engine bracket and A/C compressor bracket
(Fig. 27). Lower vehicle and position cradle mounts
until the engine is resting on mounts. Tighten
mounts to cradle frame. This will keep mounts from
moving when removing or installing engine and
transmission.(27) Lower vehicle so the weight ofONLY THE
ENGINE AND TRANSMISSIONare on the cradle.
(28) Remove engine and transmission mount bolts.
(29) Raise vehicle slowly. It may be necessary to
move the engine/transmission assembly on the cradle
to allow for removal around the body.
INSTALLATION
(1) Position engine and transmission assembly
under vehicle and slowly lower the vehicle over the
engine and transmission.
(2) Align engine and transmission mounts to
attaching points. Install mounting bolts at the right
engine and left transmission mounts. Refer to proce-
dures outlined in this section.
(3) Slowly raise vehicle enough to remove the
engine dolly and cradle Special Tools 6135 and 6710.
(4) Install axle shafts. Refer to Group 2, Suspen-
sion and Driveshafts for procedure.
(5) Install transmission and engine braces and
splash shields.
(6) Connect exhaust system to manifold. Refer to
Group 11, Exhaust System and Intake Manifold for
procedure and torque specifications.
(7) Install power steering pump. Refer to Cooling
System Group 7, Accessory Drive Section for belt ten-
sion adjustment.
(8) Install A/C compressor hoses. Refer to Group
24, Heater and Air Conditioning for procedure.
(9) Install accessory drive belts. Refer to Group 7,
Cooling System Accessory Drive Section for belt ten-
sion adjustment.
(10) Install front and rear engine mounts. Refer to
this section for procedure.
(11) Install inner splash shield. Install wheels and
tires.
(12) Connect automatic transmission cooler lines,
and shift linkage. Refer to Group 21, Transmission
for procedures.
(13) Connect fuel line and heater hoses.
(14) Install ground straps. Connect engine and
throttle body connections and harnesses. Refer to
Group 8, Electrical for procedure.
(15) Connect throttle body linkage. Refer to Group
14, Fuel System for procedure.
(16) Install radiator fans. Install radiator hoses.
Fill cooling system. Refer to Group 7, Cooling System
for filling procedure.
(17) Connect battery.
(18) Install air cleaner and hoses.
(19) Install oil filter. Fill engine crankcase with
proper oil to correct level.
(20) Start engine and run until operating temper-
ature is reached.
(21) Adjust transmission linkage, if necessary.
9 - 26 2.4L ENGINENS
REMOVAL AND INSTALLATION (Continued)
CYLINDER HEAD
REMOVAL
(1) Perform fuel system pressure release proce-
durebefore attempting any repairs.Refer to
Group 14, Fuel System for procedure.
(2) Disconnect negative battery cable. Drain cool-
ing system. Refer to Group 7, Cooling System for pro-
cedure.
(3) Remove air cleaner and disconnect all vacuum
lines, electrical wiring and fuel lines from throttle
body.
(4) Remove throttle linkage. Refer to Group 14,
Fuel System for procedures
(5) Remove accessory drive belts. Refer to Group
7, Cooling System for procedure.
(6) Remove power brake vacuum hose from intake
manifold.
(7) Raise vehicle and remove exhaust pipe from
manifold.(8) Remove power steering pump assembly and
set aside.
(9) Disconnect coil pack wiring connector and
remove coil pack and plug wires from engine.
(10) Remove cam sensor and fuel injectors wiring
connectors.
(11) Remove timing belt and camshaft sprocket.
Refer to procedure outlined in this section.
(12) Remove timing belt idler pulley and rear tim-
ing belt cover.
(13) Remove cylinder head cover using procedure
outlined in this section.
(14) Remove camshafts and cam followers. Refer to
procedures outlined in this section for procedures.
(15) Remove cylinder head bolts and remove cyl-
inder head from engine block.
(16) Inspect and clean cylinder head. Refer to
Cleaning and Inspection outlined in this section for
procedures.
INSTALLATION
NOTE: The Cylinder head bolts should be exam-
ined BEFORE reuse. If the threads are necked
down, the bolts should be replaced (Fig. 49).
Necking can be checked by holding a scale or
straight edge against the threads. If all the threads
do not contact the scale the bolt should be replaced.
(1) Before installing the bolts, the threads should
be coated with engine oil.
(2) Tighten the cylinder head bolts in the
sequence shown in (Fig. 50). Using the 4 step torque
turn method, tighten according to the following val-
ues:
²First All to 34 N´m (25 ft. lbs.)
²Second All to 68 N´m (50 ft. lbs.)
²Third All to 68 N´m (50 ft. lbs.)
CAUTION: Do not use a torque wrench for the fol-
lowing step.
²Fourth Turn an additional 1/4 Turn,
(3) Install camshafts and cam followers. Refer to
procedures outlined in this section for procedures.
Fig. 47 Valve SpringÐRemoval/Installation
Fig. 48 Valve Stem Seal/Valve Spring Seat
Fig. 49 Checking Bolts for Stretching (Necking)
9 - 34 2.4L ENGINENS
REMOVAL AND INSTALLATION (Continued)
OIL PAN
REMOVAL
(1) Raise vehicle on hoist and drain engine oil.
(2) Remove front engine mount bracket from
engine and insulator mount.
(3) Remove bolts attaching bending strut to engine
and transaxle.
(4) Remove bolts attaching collar and bending
strut to engine, oil pan, and transaxle (Fig. 79).
Remove strut and collar.
(5) Remove oil pan.
(6) Clean oil pan and all gasket surfaces.
INSTALLATION
(1) Apply MopartSilicone Rubber Adhesive Seal-
ant or equivalent at the oil pump to engine block
parting line (Fig. 80).
(2) Install the oil pan gasket to the block (Fig.
81).(3) Install pan and tighten the screws to 12 N´m
(105 in. lbs.).
CAUTION: Torque procedure for the structural col-
lar and bending strut must be followed or damage
could occur to oil pan, collar, and/or bending strut.
(4) Perform the following steps for installing struc-
tural collar and bending strut. Refer to (Fig. 79):
²Step 1: Place collar into position between tran-
saxle and oil pan. Hand start only, collar to transaxle
bolt 1.
²Step 2: Install bolt 4, collar to oil pan,hand
tight only.
²Step 3: Position bending strut in place and hand
start bolt 3 into the upper transaxle hole.
²Step 4: Install bolt 2, through strut and collar.
Hand starting only.
²Step 5: Install bolt 6, strut to cylinder block,
hand tight only.
²Step 6: Install the remaining collar to oil pan
bolt 5,hand tight only.
²Step 7: Final torque collar to transaxle bolts 1 ±
3, to 101 N´m (75 ft. lbs.)
²Step 8: Install bolts 7 and 8, through strut and
into cylinder block.
²Step 9: Final torque bolts4±8to61N´m(45ft.
lbs.).
(5) Install front mount bracket to engine and front
insulator. Refer to procedure in the section.
(6) Lower vehicle and fill engine crankcase with
proper oil to correct level.
Fig. 79 Structural Collar and Bending StrutÐ
Removal and Installation
Fig. 80 Oil Pan Sealing
Fig. 81 Oil Pan Gasket Installation
NS2.4L ENGINE 9 - 45
REMOVAL AND INSTALLATION (Continued)
TORQUE CHART 2.4L
DESCRIPTION TORQUE
Balance Shaft Carrier to Block
Bolts.....................54N´m(40ft.lbs.)
Balance Shaft Gear Cover
Double Ended Fastener......12N´m(105 in. lbs.)
Balance Shaft Sprockets
Bolts....................28N´m(250 in. lbs.)
Balance Shaft Chain Tensioner
Bolts....................12N´m(105 in. lbs.)
Balance Shaft Carrier Cover
Fasteners................12N´m(105 in. lbs.)
Camshaft Sensor Pick Up
Bolts.....................27N´m(20ft.lbs.)
Timing Belt Cover
Outer to Inner Attaching Bolts M6.......4.5 N´m
(40 in. lbs.)
Inner Cover to Head/Oil Pump Bolts M6 . . .12 N´m
(105 in. lbs.)
Camshaft Sprocket
Bolt.....................101 N´m (75 ft. lbs.)
Connecting Rod Cap
Bolts..............................27N´m
(20 ft. lbs.) Plus 1/4 Turn
Crankshaft Main Bearing Cap/Bedplate
M8 Bedplate Bolts.........34N´m(250 in. lbs.)
Main Cap Bolts M11..................41N´m
(30 ft. lbs.) Plus 1/4 Turn
Crankshaft Damper
Bolt....................135 N´m (100 ft. lbs.)
Cylinder Head
Bolts........Refer To Cylinder Head Installation
Cylinder Head Cover
Bolts....................12N´m(105 in. lbs.)DESCRIPTION TORQUE
Engine Mount Bracket
Bolts.....................61N´m(45ft.lbs.)
Engine MountÐFront and Rear
Through Bolt...............61N´m(45ft.lbs.)
Exhaust Manifold to Cylinder Head
Bolts....................23N´m(200 in. lbs.)
Exhaust Manifold Heat Shield
Bolts....................12N´m(105 in. lbs.)
Front Torque BracketÐ2.0/2.4L Engine
Bolts.....................33N´m(24ft.lbs.)
Front Torque Bracket StrutÐ2.0/2.4L Engine
Long Bolts................110N´m(80ft.lbs.)
Short Bolt.................61N´m(45ft.lbs.)
Intake Manifold
Bolts.....................27N´m(20ft.lbs.)
Oil Filter
Filter.....................20N´m(15ft.lbs.)
Oil Pan
Oil Pan Bolts.............12N´m(105 in. lbs.)
Drain Plug.................27N´m(20ft.lbs.)
Oil Pump Attaching
Bolts....................28N´m(250 in. lbs.)
Oil Pump Cover Fastener. . . .12 N´m (105 in. lbs.)
Oil Pump Pick-up Tube Bolt . .28 N´m (250 in. lbs.)
Oil Pump Relief Valve Cap. . . .41 N´m (30 ft. lbs.)
Rear Torque Bracket
Bolts....................110N´m(80ft.lbs.)
Spark Plugs
Plugs.....................28N´m(20ft.lbs.)
Thermostat Housing
Bolts....................23N´m(200 in lbs.)
Timing Belt Tensioner Assembly
Bolts.....................61N´m(45ft.lbs.)
Water Pump Mounting
Bolts....................12N´m(105 in. lbs.)
NS2.4L ENGINE 9 - 57
SPECIFICATIONS (Continued)
(2) Tighten mount to transmission bolts to 55 N´m
(40 ft. lbs.) (Fig. 22).
Tighten through bolt to 75 N´m (55 ft. lbs.)
(3) Engine mount adjustment, Refer to Engine
Mount Insulator Adjustment of this section.
REAR MOUNT
(1) Raise vehicle on hoist.
(2) Support the transmission with a transmission
jack so it will not rotate.
(3) Remove the insulator through bolt from the
mount and rear suspension crossmember.
(4) Remove the four transmission mount fasteners
and remove the mount.
(5) Reverse the removal procedure for installation.
Refer to (Fig. 23).
ENGINE MOUNT RUBBER INSULATORS
Insulator location on (right side) is adjustable to
allow right/left drive train adjustment in relation to
driveshaft assembly length. See Engine Mount
Adjustments in this section.
Check and reposition right engine mount insulator.
Adjust drive train position, if required, for the follow-
ing conditions:
²Driveshaft distress: See Group 2, Suspension
and Driveshafts.
²Any front end structural damage (after repair).
²Insulator replacement.
ENGINE ASSEMBLY
REMOVAL
(1) Perform fuel pressure release procedure. Refer
to Group 14, Fuel System for procedure. Remove fuel
line to fuel rail.
(2) Disconnect battery.
(3) Remove Air cleaner and hoses.
(4) Remove battery cover, battery and battery tray,
with integral vacuum reservoir, from vehicle.
(5) Block off heater hoses to rear heater assembly,
if equipped.
(6) Drain cooling system. Refer to Group 7, Cooling
System for procedure.
(7) Disconnect heater hoses.
(8) Remove fan module and radiator. Refer to
Group 7, Cooling System for procedure.
(9) Disconnect transmission shift linkage.
(10) Disconnect throttle body linkage and vacuum
hoses from throttle body.
(11) Remove accessory drive belts. Refer to Acces-
sory Drive System located in Group 7, Cooling Sys-
tem for procedure.
(12) Remove air conditioning compressor from
engine and set it aside.
(13) Disconnect generator wiring harness and
remove generator.
(14) Hoist vehicle and remove axle shafts. Refer to
Group 2, Driveshaft for procedure.
(15) Remove right and left inner splash shields.
(16) Disconnect exhaust pipe from manifold.
(17) Remove front engine mount and bracket as an
assembly.
(18) Remove rear transmission mount and bracket.
(19) Remove power steering pump and bracket
assembly.
(20) Remove wiring harness and connectors from
front of engine.
(21) Remove bending braces and install tool num-
ber 6910 on engine.
(22) Remove trans inspection cover and mark flex-
plate to torque converter.
(23) Remove driveplate to torque converter bolts.
(24) Lower the vehicle.
Fig. 22 Engine MountÐLeft
Fig. 23 Engine MountÐRear
NS3.0L ENGINE 9 - 69
REMOVAL AND INSTALLATION (Continued)