Dodge Durango (DN). Manual — part 14
(6) Install air tube to throttle body.
THROTTLE CABLE—4.7L V-8 ENGINE
REMOVAL
CAUTION: Be careful not to damage or kink the
cable core wire (within the cable sheathing) while
servicing accelerator pedal or throttle cable.
(1) From inside vehicle, hold up accelerator pedal.
Remove plastic cable retainer (clip) and throttle cable
core wire from upper end of pedal arm (Fig. 38).
Plastic cable retainer (clip) snaps into pedal arm.
(2) Remove cable core wire at pedal arm.
(3) From inside vehicle, remove clip holding cable
to dashpanel (Fig. 38).
(4) Remove air box at throttle body.
(5) Unsnap cable from dashpanel routing clip.
(6) Remove cable housing from dash panel and
pull into engine compartment.
(7) Using finger pressure only, disconnect accelera-
tor cable connector at throttle body bellcrank pin by
pushing connector off bellcrank pin towards front of
vehicle (Fig. 42). DO NOT try to pull connector
off perpendicular to the bellcrank pin. Connec-
tor will be broken.
(8) Lift accelerator cable from top of cable cam
(Fig. 42).
(9) Press tab (Fig. 43) to release plastic cable
mount from bracket. Press on tab only enough to
release cable from bracket. If tab is pressed too
much, it will be broken. Slide plastic mount (Fig.
43) towards passenger side of vehicle to remove cable
from bracket.
(10) Remove throttle cable from vehicle.
INSTALLATION
(1) Slide
accelerator
cable
plastic
mount
into
bracket. Continue sliding until tab (Fig. 43) is
aligned to hole in mounting bracket.
(2) Route accelerator cable over top of cable cam.
(3) Connect cable end to throttle body bellcrank
pin (snaps on rearward).
(4) Slide rubber grommet away from plastic cable
housing.
(5) Install rubber grommet into dash panel until
seated.
(6) Push cable housing into rubber grommet and
through opening in dash panel.
(7) From inside vehicle, install clip holding cable
to dashpanel (Fig. 38).
(8) From inside vehicle, slide throttle cable core
wire into opening in top of pedal arm.
(9) Push cable retainer (clip) into pedal arm open-
ing until it snaps in place.
(10) Snap cable into dashpanel routing clip.
(11) Install air box to throttle body.
(12) Before starting engine, operate accelerator
pedal to check for any binding.
SPECIFICATIONS
FUEL TANK CAPACITY
FUEL SYSTEM PRESSURE
All Engines: 339 kPa
6 34 kPa (49.2 psi 6 5 psi)
FUEL REQUIREMENTS
Your engine is designed to meet all emissions reg-
ulations and provide excellent fuel economy and per-
formance when using high quality unleaded gasoline
having an octane rating of 87. The use of premium
Fig. 42 Accelerator Cable at Bell Crank—4.7L V-8
Engine
1 – THROTTLE BODY
2 – SPEED CONTROL CABLE CONNECTOR
3 – OFF
4 – OFF
5 – ACCELERATOR CABLE CONNECTOR
6 – CABLE CAM
7 – BELLCRANK
Models
Liters
U.S. Gallons
Standard
95
25
Nominal refill capacities are shown. A variation may
be observed from vehicle to vehicle due to
manufacturing tolerance and refill procedure.
14 - 24
FUEL SYSTEM
DN
REMOVAL AND INSTALLATION (Continued)
gasoline is not recommended. The use of premium
gasoline will provide no benefit over high quality reg-
ular gasoline, and in some circumstances may result
in poorer performance.
Light spark knock at low engine speeds is not
harmful to your engine. However, continued heavy
spark knock at high speeds can cause damage and
immediate service is required. Engine damage result-
ing from operation with a heavy spark knock may
not be covered by the new vehicle warranty.
Poor quality gasoline can cause problems such as
hard starting, stalling and hesitations. If you experi-
ence these symptoms, try another brand of gasoline
before considering service for the vehicle.
Over 40 auto manufacturers world-wide have
issued and endorsed consistent gasoline specifications
(the Worldwide Fuel Charter, WWFC) to define fuel
properties necessary to deliver enhanced emissions,
performance and durability for your vehicle. We rec-
ommend the use of gasolines that meet the WWFC
specifications if they are available.
REFORMULATED GASOLINE
Many areas of the country require the use of
cleaner burning gasoline referred to as “reformulat-
ed” gasoline. Reformulated gasoline contain oxygen-
ates, and are specifically blended to reduce vehicle
emissions and improve air quality.
We strongly supports the use of reformulated gas-
oline. Properly blended reformulated gasoline will
provide excellent performance and durability for the
engine and fuel system components.
GASOLINE/OXYGENATE BLENDS
Some fuel suppliers blend unleaded gasoline with
oxygenates such as 10% ethanol, MTBE, and ETBE.
Oxygenates are required in some areas of the country
during the winter months to reduce carbon monoxide
emissions. Fuels blended with these oxygenates may
be used in your vehicle.
CAUTION: DO NOT use gasoline containing METH-
ANOL. Gasoline containing methanol may damage
critical fuel system components.
MMT IN GASOLINE
MMT is a manganese-containing metallic additive
that is blended into some gasoline to increase octane.
Gasoline blended with MMT provide no performance
advantage beyond gasoline of the same octane num-
ber without MMT. Gasoline blended with MMT
reduce spark plug life and reduce emission system
performance in some vehicles. We recommend that
gasolines free of MMT be used in your vehicle. The
MMT content of gasoline may not be indicated on the
gasoline pump; therefore, you should ask your gaso-
line retailer whether or not his/her gasoline contains
MMT.
It is even more important to look for gasoline with-
out MMT in Canada because MMT can be used at
levels higher than allowed in the United States.
MMT is prohibited in Federal and California refor-
mulated gasoline.
SULFUR IN GASOLINE
If you live in the northeast United States, your vehi-
cle may have been designed to meet California low
emission standards with Cleaner-Burning California
reformulated gasoline with low sulfur. If such fuels are
not available in states adopting California emission
standards, your vehicles will operate satisfactorily on
fuels meeting federal specifications, but emission con-
trol system performance may be adversely affected.
Gasoline sold outside of California is permitted to have
higher sulfur levels which may affect the performance
of the vehicle’s catalytic converter. This may cause the
Malfunction Indicator Lamp (MIL), Check Engine or
Service Engine Soon light to illuminate. We recom-
mend that you try a different brand of unleaded gaso-
line having lower sulfur to determine if the problem is
fuel related prior to returning your vehicle to an
authorized dealer for service.
Fig. 43 Accelerator Cable Release Tab—4.7L V-8
Engine
1 – ACCELERATOR CABLE
2 – PLASTIC CABLE MOUNT
3 – PRESS TAB FOR REMOVAL
4 – CABLE BRACKET
5 – SLIDE FOR REMOVAL
DN
FUEL SYSTEM
14 - 25
SPECIFICATIONS (Continued)
CAUTION: If the Malfunction Indicator Lamp (MIL),
Check Engine or Service Engine Soon light is flash-
ing, immediate service is required; see on-board
diagnostics system section.
MATERIALS ADDED TO FUEL
All gasoline sold in the United States and Canada
are required to contain effective detergent additives.
Use of additional detergents or other additives is not
needed under normal conditions.
FUEL SYSTEM CAUTIONS
CAUTION: Follow these guidelines to maintain your
vehicle’s performance:
• The use of leaded gas is prohibited by Federal
law. Using leaded gasoline can impair engine perfor-
mance, damage the emission control system, and
could result in loss of warranty coverage.
• An out-of-tune engine, or certain fuel or ignition
malfunctions, can cause the catalytic converter to
overheat. If you notice a pungent burning odor or
some light smoke, your engine may be out of tune or
malfunctioning and may require immediate service.
Contact your dealer for service assistance.
• When pulling a heavy load or driving a fully
loaded vehicle when the humidity is low and the tem-
perature is high, use a premium unleaded fuel to
help prevent spark knock. If spark knock persists,
lighten the load, or engine piston damage may result.
• The use of fuel additives which are now being
sold as octane enhancers is not recommended. Most
of these products contain high concentrations of
methanol. Fuel system damage or vehicle perfor-
mance problems resulting from the use of such fuels
or additives is not the responsibility of Daimler-
Chrysler Corporation and may not be covered under
the new vehicle warranty.
NOTE: Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
TORQUE CHART
DESCRIPTION
TORQUE
Accelerator Pedal Bracket
Mounting Nuts . . . . . . . . . . . . 7 N·m (65 in. lbs.)
Fuel Rail Mounting
Bolts—3.9/5.2/5.9L Engines . . . . . . . . . . . 23 N·m
(200 in. lbs.)
Fuel Tank
Mounting Nuts . . . . . . 27–54 N·m (20–40 ft. lbs.)
Fuel Hose Clamps
(if equipped) . . . . . . . . . . . . . . 3 N·m (25 in. lbs.)
14 - 26
FUEL SYSTEM
DN
SPECIFICATIONS (Continued)
FUEL INJECTION SYSTEM
TABLE OF CONTENTS
page
page
DESCRIPTION AND OPERATION
POWERTRAIN CONTROL MODULE (PCM) . . . . . 28
MODES OF OPERATION . . . . . . . . . . . . . . . . . . . 29
AUTOMATIC SHUTDOWN (ASD) RELAY
SENSE—PCM INPUT . . . . . . . . . . . . . . . . . . . . 31
BATTERY VOLTAGE—PCM INPUT. . . . . . . . . . . . 31
BRAKE SWITCH—PCM INPUT. . . . . . . . . . . . . . . 31
ENGINE COOLANT TEMPERATURE
SENSOR—PCM INPUT . . . . . . . . . . . . . . . . . . . 32
FIVE VOLT SENSOR SUPPLIES—PRIMARY
AND SECONDARY . . . . . . . . . . . . . . . . . . . . . . 32
SENSOR—PCM INPUT . . . . . . . . . . . . . . . . . . . 32
MANIFOLD ABSOLUTE PRESSURE (MAP)
SENSOR—PCM INPUT . . . . . . . . . . . . . . . . . . . 33
OIL PRESSURE SENSOR—PCM INPUT . . . . . . . 34
OXYGEN SENSOR (O2S)—PCM INPUT. . . . . . . . 34
POWER GROUNDS . . . . . . . . . . . . . . . . . . . . . . . 35
POWER STEERING PRESSURE SWITCH—
PCM INPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
INPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
VEHICLE SPEED AND DISTANCE—PCM
INPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
OUTPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
CCD BUS (+/-) CIRCUITS-PCM OUTPUTS . . . . . . 37
DATA LINK CONNECTOR—PCM INPUT AND
OUTPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
OUTPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
OXYGEN SENSOR HEATER RELAYS—PCM
OUTPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
RADIATOR COOLING FAN RELAY—PCM
OUTPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
THROTTLE BODY . . . . . . . . . . . . . . . . . . . . . . . . 39
DIAGNOSIS AND TESTING
VISUAL INSPECTION—3.9/5.2/5.9L ENGINES . . . 39
ASD AND FUEL PUMP RELAYS . . . . . . . . . . . . . . 42
THROTTLE BODY MINIMUM AIR FLOW
CHECK PROCEDURE . . . . . . . . . . . . . . . . . . . . 43
REMOVAL AND INSTALLATION
AUTOMATIC SHUTDOWN (ASD) RELAY . . . . . . . 44
FUEL PUMP RELAY . . . . . . . . . . . . . . . . . . . . . . . 44
OXYGEN SENSOR HEATER RELAYS . . . . . . . . . 45
THROTTLE BODY—3.9/5.2/5.9L ENGINES . . . . . . 45
THROTTLE BODY—4.7L V-8 ENGINE . . . . . . . . . 45
THROTTLE POSITION SENSOR (TPS)—3.9/
5.2/5.9L ENGINES . . . . . . . . . . . . . . . . . . . . . . . 46
THROTTLE POSITION SENSOR (TPS)—4.7L
V-8 ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
IDLE AIR CONTROL (IAC) MOTOR—3.9/5.2/
5.9L ENGINES . . . . . . . . . . . . . . . . . . . . . . . . . 47
IDLE AIR CONTROL (IAC) MOTOR—4.7L V–8
ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
MANIFOLD ABSOLUTE PRESSURE (MAP)
SENSOR—3.9/5.2/5.9L ENGINES . . . . . . . . . . . 48
MANIFOLD ABSOLUTE PRESSURE (MAP)
SENSOR—4.7L V–8 ENGINE . . . . . . . . . . . . . . 49
POWERTRAIN CONTROL MODULE (PCM) . . . . . 49
OXYGEN SENSOR. . . . . . . . . . . . . . . . . . . . . . . . 50
AIR CLEANER ELEMENT (FILTER) . . . . . . . . . . . 50
ENGINE COOLANT TEMPERATURE
SENSOR—3.9/5.2/5.9L ENGINES . . . . . . . . . . . 50
SENSOR—4.7L V-8 ENGINE . . . . . . . . . . . . . . . 51
INTAKE MANIFOLD AIR TEMPERATURE
SENSOR—3.9/5.2/5.9L ENGINES . . . . . . . . . . . 52
INTAKE MANIFOLD AIR TEMPERATURE
SENSOR—4.7L V-8 ENGINE . . . . . . . . . . . . . . . 53
POWER STEERING PRESSURE SWITCH . . . . . . 54
SPECIFICATIONS
TORQUE CHART . . . . . . . . . . . . . . . . . . . . . . . . . 54
SPECIAL TOOLS
FUEL SYSTEM. . . . . . . . . . . . . . . . . . . . . . . . . . . 54
DN
FUEL SYSTEM
14 - 27
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