1999 DODGE DURANGO Electrical

Downloaded from www.Manualslib.com manuals search engine INTAKE MANIFOLD
REMOVAL
(1) Disconnect negative cable from battery.
(2) Remove resonator assembly and air inlet hose.
(3) Disconnect throttle and speed control cables.
(4) Disconnect electrical connectors for the follow-
ing components: Refer to FUEL SYSTEM for compo-
nent locations.
²Manifold Absolute Pressure (MAP) Sensor
²Intake Air Temperature (IAT) Sensor
²Throttle Position (TPS) Sensor
²Coolant Temperature (CTS) Sensor
²Idle Air Control (IAC) Motor
(5) Disconnect vapor purge hose, brake booster
hose, speed control servo hose, positive crankcase
ventilation (PCV) hose.
(6) Disconnect generator electrical connections.
(7) Disconnect air conditioning compressor electri-
cal connections.
(8) Disconnect left and right radio suppressor
straps.
(9) Disconnect and remove ignition coil towers.
(10) Remove top oil dipstick tube retaining bolt
and ground strap.
(11) Bleed fuel system. Refer to FUEL SYSTEM.
(12) Remove fuel rail.
(13) Remove throttle body assembly and mounting
bracket.
(14) Drain cooling system below coolant tempera-
ture level. Refer to COOLING SYSTEM.
(15) Remove the heater hoses from the engine
front cover and the heater core.
(16) Unclip and remove heater hoses and tubes
from intake manifold (Fig. 50).
(17) Remove coolant temperature sensor. Refer to
FUEL SYSTEM.
(18) Remove intake manifold retaining fasteners in
reverse order of tightening sequence (Fig. 51).
(19) Remove intake manifold.
INSTALLATION
(1) Install intake manifold gaskets.
(2) Install intake manifold.
(3) Install intake manifold retaining bolts and
tighten in sequence shown in (Fig. 51) to 12 N´m
(105 in. lbs.).
(4) Install left and right radio suppressor straps.
(5) Install throttle body assembly.
(6) Install throttle cable bracket.
(7) Connect throttle cable and speed control cable
to throttle body.
(8) Install fuel rail.
(9) Install ignition coil towers.
Fig. 48 Body Ground StrapÐRight Side Removal /
Installation
1 ± NUT
2 ± A/C ACCUMULATOR
3 ± GROUND STRAP
Fig. 49 Body Ground StrapÐLeft Side Removal /
Installation
1 ± NUT
2 ± GROUND STRAP
3 ± BRAKE BOOSTER
DN4.7L ENGINE 9 - 35
REMOVAL AND INSTALLATION (Continued)

Downloaded from www.Manualslib.com manuals search engine (10) Position and install heater hoses and tubes
onto intake manifold.
(11) Install the heater hoses to the heater core and
engine front cover.(12) Connect electrical connectors for the following
components:
²Manifold Absolute Pressure (MAP) Sensor
²Intake Air Temperature (IAT) Sensor
²Throttle Position (TPS) Sensor
²Coolant Temperature (CTS) Sensor
²Idle Air Control (IAC) Motor
²Ignition coil towers
²Fuel injectors
(13) Install top oil dipstick tube retaining bolt and
ground strap.
(14) Connect generator electrical connections.
(15) Connect Vapor purge hose, Brake booster
hose, Speed control servo hose, Positive crankcase
ventilation (PCV) hose.
(16) Fill cooling system.
(17) Install resonator assembly and air inlet hose.
(18) Connect negative cable to battery.
EXHAUST MANIFOLDS
RIGHT EXHAUST MANIFOLD
REMOVAL
(1) Disconnect negative cable for battery.
(2) Remove air cleaner assembly, resonator assem-
bly and air inlet hose.
(3) Remove accessory drive belt. Refer to COOL-
ING SYSTEM.
(4) Remove A/C compressor from mounting and set
aside.
(5) Remove A/C accumulator support bracket fas-
tener.
(6) Drain coolant below heater hose level. Refer to
COOLING SYSTEM.
(7) Remove heater hoses at engine.
(8) Remove fasteners attaching exhaust manifold
heat shield.
(9) Remove heat shield.
(10) Remove upper exhaust manifold attaching fas-
teners.
(11) Raise vehicle on hoist.
(12) Disconnect exhaust pipe from manifold.
(13) Remove fasteners attaching starter. Move
starter aside.
(14) Remove lower exhaust manifold attaching fas-
teners.
(15) Remove exhaust manifold and gasket (Fig.
52). Manifold is removed from below the engine com-
partment.
Fig. 50 Heater Hoses and Tubes Removal /
Installation
1 ± HEATER HOSES AND TUBES
2 ± ROUTING/RETAINING CLIPS
Fig. 51 Intake Manifold Tightening Sequence
9 - 36 4.7L ENGINEDN
REMOVAL AND INSTALLATION (Continued)

Downloaded from www.Manualslib.com manuals search engine (9) Install A/C compressor and fasteners.
(10) Install accessory drive belt.
(11) Install air cleaner assembly, resonator assem-
bly and air inlet hose.
(12) Install battery and connect cables.
(13) Fill cooling system.
LEFT EXHAUST MANIFOLD
REMOVAL
(1) Disconnect negative cable for battery.
(2) Hoist vehicle.
(3) Disconnect exhaust pipe at manifold.
(4) Lower vehicle.
(5) Remove the front two exhaust heat shield
retaining fasteners. Raise vehicle and remove the
fasteners at rear of heat shield.
(6) Remove heat shield (Fig. 53).
(7) Lower vehicle and remove the upper exhaust
manifold retaining bolts (Fig. 53).
(8) Raise vehicle and remove the lower exhaust
manifold retaining bolts (Fig. 53).
(9) Remove exhaust manifold and gasket (Fig. 53).
Manifold is removed from below the engine compart-
ment.
INSTALLATION
(1) Install exhaust manifold and gasket from below
engine compartment.
(2) Install lower exhaust manifold fasteners (Fig.
53). DO NOT tighten until all fasteners are in place.
(3) Lower vehicle and install upper exhaust mani-
fold fasteners (Fig. 53). Tighten all manifold bolts
starting at center and working outward to 25 N´m
(18 ft. lbs.).
CAUTION: Over tightening heat shield fasteners,
may cause shield to distort and/or crack.
(4) Install exhaust manifold heat shield (Fig. 53).
Tighten fasteners to 8 N´m (72 in. lbs.), then loosen
45 degrees.
(5) Connect exhaust pipe to manifold.
(6) Connect negative cable to battery.
CYLINDER HEAD COVER
REMOVAL
LEFT SIDE COVER
(1) Disconnect negative cable from battery.
(2) Remove the resonator assemble and air inlet
hose.
(3) Disconnect injector connectors and un-clip the
injector harness.
(4) Route injector harness in front of cylinder head
cover.(5) Disconnect the left side breather tube and
remove the breather tube.
(6) Remove the cylinder head cover mounting
bolts.
(7) Remove cylinder head cover and gasket.
NOTE: The gasket may be used again, provided no
cuts, tears, or deformation has occurred.
INSTALLATION
CAUTION: Do not use harsh cleaners to clean the
cylinder head covers. Severe damage to covers
may occur.
CAUTION: DO NOT allow other components includ-
ing the wire harness to rest on or against the cylin-
der head cover. Prolonged contact with other
objects may wear a hole in the engine cylinder head
cover.
(1) Clean cylinder head cover and both sealing sur-
faces. Inspect and replace gasket as necessary.
(2) Install cylinder head cover and hand start all
fasteners. Verify that all studs are in the correct loca-
tion shown in (Fig. 54).
(3) Tighten cylinder head cover bolts and double
ended studs to 12 N´m (105 in. lbs.).
(4) Install left side breather and connect breather
tube.
(5) Connect injector electrical connectors and injec-
tor harness retaining clips.
(6) Install the resonator and air inlet hose.
(7) Connect negative cable to battery.
REMOVAL
RIGHT SIDE COVER
(1) Disconnect battery negative cable.
(2) Remove air cleaner assembly, resonator assem-
bly and air inlet hose.
(3) Drain cooling system, below the level of the
heater hoses. Refer to COOLING SYSTEM.
(4) Remove accessory drive belt.
(5) Remove air conditioning compressor retaining
bolts and move compressor to the left.
(6) Remove heater hoses.
(7) Disconnect injector and ignition coil connectors.
(8) Disconnect and remove positive crankcase ven-
tilation (PCV) hose.
(9) Remove oil fill tube.
(10) Un-clip injector and ignition coil harness and
move away from cylinder head cover.
(11) Remove right rear breather tube and filter
assembly.
9 - 38 4.7L ENGINEDN
REMOVAL AND INSTALLATION (Continued)

Downloaded from www.Manualslib.com manuals search engine CAUTION: DO NOT allow other components includ-
ing the wire harness to rest on or against the
engine cylinder head cover. Prolonged contact with
other objects may wear a hole in the cylinder head
cover.
(1) Clean cylinder head cover and both sealing sur-
faces. Inspect and replace gasket as necessary.
(2) Install cylinder head cover and hand start all
fasteners. Verify that all double ended studs are in
the correct location shown in (Fig. 55).
(3) Tighten cylinder head cover bolts and double
ended studs to 12 N´m (105 in. lbs).
(4) Install right rear breather tube and filter
assembly.(5) Connect injector, ignition coil electrical connec-
tors and harness retaining clips.
(6) Install the oil fill tube.
(7) Install PCV hose.
(8) Install heater hoses.
(9) Install air conditioning compressor retaining
bolts.
(10) Install accessory drive belt
(11) Fill Cooling system
(12) Install air cleaner assembly, resonator assem-
bly and air inlet hose.
(13) Connect battery negative cable.
ROCKER ARMS
REMOVAL
NOTE: Disconnect the battery negative cable to
prevent accidental starter engagement.
(1) Remove the cylinder head cover. Refer to Cyl-
inder Head Cover in this section.
(2) For rocker arm removal on cylinders 3 and 5
Rotate the crankshaft until cylinder #1 is at TDC
exhaust stroke.
(3) For rocker arm removal on cylinders 2 and 8
Rotate the crankshaft until cylinder #1 is at TDC
compression stroke.
(4) For rocker arm removal on cylinders 4 and 6
Rotate the crankshaft until cylinder #3 is at TDC
compression stroke.
(5) For rocker arm removal on cylinders 1 and 7
Rotate the crankshaft until cylinder #2 is at TDC
compression stroke.
(6) Using special tool 8516 press downward on the
valve spring, remove rocker arm (Fig. 56).
INSTALLATION
CAUTION: Make sure the rocker arms are installed
with the concave pocket over the lash adjusters.
Failure to do so may cause severe damage to the
rocker arms and/or lash adjusters.
NOTE: Coat the rocker arms with clean engine oil
prior to installation.
(1) For rocker arm installation on cylinders 3 and
5 Rotate the crankshaft until cylinder #1 is at TDC
exhaust stroke.
(2) For rocker arm installation on cylinders 2 and
8 Rotate the crankshaft until cylinder #1 is at TDC
compression stroke.
(3) For rocker arm installation on cylinders 4 and
6 Rotate the crankshaft until cylinder #3 is at TDC
compression stroke.
Fig. 54 Cylinder Head CoverÐLeft
ITEM DESCRIPTION TORQUE
1 Cover
Fasteners12 N´m (105 in. lbs.)
Fig. 55 Cylinder Head CoverÐRight
ITEM DESCRIPTION TORQUE
1 Cover Fasteners 12 N´m (105 in. lbs.)
9 - 40 4.7L ENGINEDN
REMOVAL AND INSTALLATION (Continued)

Downloaded from www.Manualslib.com manuals search engine INSTALLATION
(1) Install hydraulic lash adjuster making sure
adjusters are at least partially full of oil. This can be
verified by little or no plunger travel when lash
adjuster is depressed.
(2) Install rocker arm(s). Refer to procedure in this
section.
(3) Install cylinder head cover(s). Refer to proce-
dure in this section.
CRANKSHAFT DAMPER
REMOVAL
(1) Disconnect negative cable from battery.
(2) Remove accessory drive belt. Refer to COOL-
ING SYSTEM.
(3) Drain cooling system. Refer to COOLING SYS-
TEM.
(4) Remove radiator upper hose.
(5) Remove upper fan shroud. Refer to COOLING
SYSTEM.
(6) Using Special Tools 6958 Spanner with Adapter
Pins 8346, loosen fan and viscous assembly from
water pump (Fig. 69).
(7) Remove fan and viscous assembly.
(8) Disconnect electrical connector for fan mounted
inside radiator shroud.NOTE: Transmission cooler line snaps into shroud
lower right hand corner.
(9) Remove crankshaft damper bolt.
(10) Remove damper using Special Tools 8513
Insert and 1026 Three Jaw Puller (Fig. 70).
INSTALLATION
CAUTION: To prevent severe damage to the Crank-
shaft, Damper or Special Tool 8512, thoroughly
clean the damper bore and the crankshaft nose
before installing Damper.
(1) Align crankshaft damper slot with key in
crankshaft. Slide damper onto crankshaft slightly.
CAUTION: Special Tool 8512, is assembled in a
specific sequence. Failure to assemble this tool in
this sequence can result in tool failure and severe
damage to either the tool or the crankshaft.
(2) Assemble Special Tool 8512 as follows, The nut
is threaded onto the shaft first. Then the roller bear-
ing is placed onto the threaded rod (The hardened
bearing surface of the bearingMUSTface the nut).
Then the hardened washer slides onto the threaded
rod (Fig. 71). Once assembled coat the threaded rod's
threads with MopartNickel Anti-Seize or (Loctite
No. 771).
Fig. 68 Valve Assembly Configuration
1 ± VALVE LOCKS (3±BEAD)
2 ± RETAINER
3 ± VALVE STEM OIL SEAL
4 ± INTAKE VALVE
5 ± EXHAUST VALVE
6 ± VALVE SPRINGFig. 69 Fan AssemblyÐRemoval/Installation
1 ± SPECIAL TOOL 6958 SPANNER WRENCH WITH ADAPTER
PINS 8346
2±FAN
DN4.7L ENGINE 9 - 47
REMOVAL AND INSTALLATION (Continued)

Downloaded from www.Manualslib.com manuals search engine (3) Using Special Tool 8512, press damper onto
crankshaft (Fig. 72).
(4) Install then tighten crankshaft damper bolt to
175 N´m (130 ft. lbs.).
(5) Install fan blade assembly.(6) Install radiator upper shroud and tighten fas-
teners to 11 N´m (95 in. lbs.).
(7) Connect electrical connector for shroud fan.
(8) Install radiator upper hose.
(9) Install accessory drive belt.
(10) Refill cooling system.
(11) Connect negative cable to battery.
TIMING CHAIN COVER
REMOVAL
(1) Disconnect the battery negative cable.
(2) Drain cooling system and remove viscous fan
drive assembly. Refer to Group 7, Cooling System for
procedures.
(3) Remove radiator shroud. Refer to Group 7,
Cooling System for procedure.
(4) Disconnect both heater hoses at timing cover.
(5) Disconnect lower radiator hose at engine.
(6) Remove crankshaft damper. Refer to procedure
in this section.
(7) Remove accessory drive belt tensioner assembly
(Fig. 73).
(8) Remove the generator and A/C compressor.
(9) Remove cover and gasket (Fig. 74).
INSTALLATION
(1) Clean timing chain cover and block surface.
Inspect cover gasket and replace as necessary.
(2) Install cover and gasket. Tighten fasteners in
sequence as shown in (Fig. 74) to 54 N´m (40 ft. lbs.).
Fig. 70 Crankshaft DamperÐRemoval
1 ± SPECIAL TOOL 8513 INSERT
2 ± SPECIAL TOOL 1026
Fig. 71 Proper Assembly Method for Special Tool
8512
1 ± BEARING
2 ± NUT
3 ± THREADED ROD
4 ± BEARING HARDENED SURFACE (FACING NUT)
5 ± HARDENED WASHER
Fig. 72 Crankshaft DamperÐInstallation
1 ± SPECIAL TOOL 8512
9 - 48 4.7L ENGINEDN
REMOVAL AND INSTALLATION (Continued)

Downloaded from www.Manualslib.com manuals search engine (2) Remove accessory drive belt refer to Group 7,
Cooling System for procedure.
(3) Remove A/C compressor mouning fasteners and
set aside.(4) Drain cooling system. Refer to Group 7, Cooling
System for procedure.
(5) Remove upper radiator hose.
(6) Using Special Tools 6958 Spanner with Adapter
Pins 8346 loosen fan and viscous assembly from
water pump (Fig. 126).
(7) Remove fan and viscous assembly.
(8) Disconnect electrical connector for fan mounted
inside radiator shroud.
(9) Remove radiator shroud attaching fasteners.
NOTE: Transmission cooler line snaps into shroud
lower right hand corner.
(10) Remove radiator shroud.
(11) Remove crankshaft damper bolt.
(12) Remove damper using Special Tools 8513
Insert and 1026 Three Jaw Puller (Fig. 127).
(13) Using Special Tool 8511, remove crankshaft
front seal (Fig. 128).
INSTALLATION
CAUTION: To prevent severe damage to the Crank-
shaft, Damper or Special Tool 8512, thoroughly
clean the damper bore and the crankshaft nose
before installing Damper.
(1) Using Special Tool 8348 and 8512, install
crankshaft front seal (Fig. 129).
Fig. 124 Oil Pump and Primary Timing Chain
Tightening Sequence
Fig. 125 Oil Pressure Sending Unit
1 ± BELT
2 ± OIL PRESSURE SENSOR
3 ± OIL FILTER
4 ± ELEC. CONNECTOR
Fig. 126 Fan AssemblyÐRemoval/Installation
1 ± SPECIAL TOOL 6958 SPANNER WRENCH WITH ADAPTER
PINS 8346
2±FAN
DN4.7L ENGINE 9 - 71
REMOVAL AND INSTALLATION (Continued)

Downloaded from www.Manualslib.com manuals search engine CAUTION: Special Tool 8512, is assembled in a
specific sequence. Failure to assemble this tool in
this sequence can result in tool failure and severe
damage to either the tool or the crankshaft.(2) Assemble Special Tool 8512 as follows, The nut
is threaded onto the shaft first. Then the roller bear-
ing is placed onto the threaded rod (The hardened
bearing surface of the bearingMUSTface the nut).
Then the hardened washer slides onto the threaded
rod (Fig. 130). Once assembled coat the threaded
rod's threads with MopartNickel Anti-Seize or (Loc-
tite No. 771).
(3) Align crankshaft damper slot with key in
crankshaft. Slide damper onto crankshaft slightly.
(4) Using Special Tool 8512 press damper onto
crankshaft (Fig. 131).
(5) Install then tighten crankshaft damper bolt to
175 N´m (130 ft. lbs.).
(6) Install radiator shroud and tighten fasteners to
11 N´m (95 in. lbs.).
(7) Connect electrical connector for shroud fan.
(8) Install fan and viscous assembly.
(9) Using Special Tools 6958 Spanner with Adapter
Pins 8346 tighten fan and viscous assembly to water
pump (Fig. 126).
(10) Install upper radiator hose.
(11) Install A/C compressor and tighten fasteners
to 54 N´m (40 ft. lbs.).
(12) Install accessory drive belt refer to Group 7,
Cooling System for procedure.
(13) Refill cooling system. Refer to Group 7, Cool-
ing System for procedure.
(14) Connect negative cable to battery.
Fig. 127 Crankshaft DamperÐRemoval
1 ± SPECIAL TOOL 8513 INSERT
2 ± SPECIAL TOOL 1026
Fig. 128 Crankshaft Front SealÐRemoval
1 ± SPECIAL TOOL 8511
Fig. 129 Crankshaft Front SealÐInstallation
1 ± TIMING CHAIN COVER
2 ± SPECIAL TOOL 8348
3 ± SPECIAL TOOL 8512
9 - 72 4.7L ENGINEDN
REMOVAL AND INSTALLATION (Continued)