Dodge Durango (HB). Manual — part 294
SPECIFICATIONS
SPECIFICATIONS - TORQUE - IGNITION
DESCRIPTION
N·m
Ft. Lbs.
In. Lbs.
Camshaft Position Sensor
- 3.7L V-6 Engine
12
-
106
Camshaft Position Sensor
- 4.7L V-8 Engine
12
-
106
Camshaft Position Sensor
- 5.7L V-8 Engine
12
9
105
Crankshaft Position
Sensor - 3.7L V-6 Engine
28
21
205
Crankshaft Position
Sensor - 4.7L V-8 Engine
28
21
205
Crankshaft Position
Sensor - 5.7L V-8 Engine
12
9
105
Ignition Coil Mounting -
3.7L V-6 Engine
8
-
70
Ignition Coil Mounting -
4.7L V-8 Engine
8
-
70
Ignition Coil Mounting -
5.7L V-8 Engine
12
9
105 (± 20)
* Knock Sensor - 3.7L V-6
Engine
20
15
176
* Knock Sensor - 4.7L V-8
Engine
20
15
176
* Knock Sensor - 5.7L V-8
Engine
20
15
176
Spark Plugs - 3.7L V-6
Engine
27
20
-
Spark Plugs - 4.7L V-8
Engine
27
20
-
** Spark Plugs - 5.7L V-8
Engine
18 (± 3)
13 (± 2)
-
* Do not apply any
sealant, thread-locker or
adhesive to bolts. Poor
sensor performance may
result.
** Torque critical tapered
design. Do not exceed 15
ft. lbs.
ENGINE FIRING ORDER - 3.7L V-6
1 - 6 - 5 - 4 - 3 - 2
HB
IGNITION SYSTEM - SERVICE INFORMATION
8I - 7
ENGINE FIRING ORDER – 4.7L V-8
FIRING ORDER / CABLE ROUTING – 5.7L V-8 ENGINE
Eight conventional spark plug cables are used with the
5.7L. These cables connect a coil on one cylinder
bank, directly to a spark plug on the opposite cylinder
bank. The cables are placed and routed in a special
plastic loom to keep them separated. This loom is
clipped to the intake manifold. To prevent a miss-
match of cables, a corresponding spark plug / coil
number is displayed on each plug cable: 1/6, 2/3, 4/7
and 5/8. These numbers (2) and (3) can also be found
on the top of the intake manifold (1) to the right of the
throttle body.
8I - 8
IGNITION SYSTEM - SERVICE INFORMATION
HB
SPARK PLUG CABLE RESISTANCE
MINIMUM
MAXIMUM
250 Ohms Per Inch
1000 Ohms Per Inch
3000 Ohms Per Foot
12,000 Ohms Per Foot
SPARK PLUGS
ENGINE
PLUG TYPE
ELECTRODE GAP
3.7L V-6
ZFR6F - 11G (NGK)
1.1 (0.042 in.)
4.7L V-8
RC12MCC4
1.01 mm (.040 in.)
5.7L V-8
Champion - RE14MCC4
1.14 mm (.045 in.)
IGNITION COIL RESISTANCE - 3.7L V-6
PRIMARY RESISTANCE
21-27°C (70-80°F)
SECONDARY
RESISTANCE 21-27°C
(70-80°F)
0.6 - 0.9 Ohms
6,000 - 9,000 Ohms
IGNITION COIL RESISTANCE - 4.7L V-8
PRIMARY
RESISTANCE 21-27°C
(70-80°F)
SECONDARY
RESISTANCE 21-27°C
(70-80°F)
0.6 - 0.9 Ohms
6,000 - 9,000 Ohms
IGNITION COIL RESISTANCE - 5.7L V-8
PRIMARY RESISTANCE @ 21-27°C (70-80°F)
0.558 - 0.682 Ohms
(Plus or Minus 10% @ 70-80° F)
IGNITION TIMING
Ignition timing is not adjustable on any engine.
RELAY-AUTO SHUT DOWN
DESCRIPTION - PCM OUTPUT
The 5–pin, 12–volt, Automatic Shutdown (ASD) relay is located in the Power Distribution Center (PDC). Refer to
label on PDC cover for relay location.
OPERATION
OPERATION - PCM OUTPUT
The ASD relay supplies battery voltage (12+ volts) to the fuel injectors and ignition coil(s). With certain emissions
packages it also supplies 12–volts to the oxygen sensor heating elements.
The ground circuit for the coil within the ASD relay is controlled by the Powertrain Control Module (PCM). The PCM
operates the ASD relay by switching its ground circuit on and off.
HB
IGNITION SYSTEM - SERVICE INFORMATION
8I - 9
The ASD relay will be shut–down, meaning the 12–volt power supply to the ASD relay will be de-activated by the
PCM if:
•
the ignition key is left in the ON position. This is if the engine has not been running for approximately 1.8
seconds.
•
there is a crankshaft position sensor signal to the PCM that is lower than pre-determined values.
OPERATION - ASD SENSE - PCM INPUT
A 12 volt signal at this input indicates to the PCM that the ASD has been activated. The relay is used to connect the
oxygen sensor heater element, ignition coil and fuel injectors to 12 volt + power supply.
This input is used only to sense that the ASD relay is energized. If the Powertrain Control Module (PCM) does not
see 12 volts at this input when the ASD should be activated, it will set a Diagnostic Trouble Code (DTC).
REMOVAL
The ASD relay is located in the engine compartment within the Power Distribution Center (PDC). Refer to label on
PDC cover for relay location.
1. Remove PDC cover.
2. Remove relay from PDC.
3. Check condition of relay terminals and PDC connector terminals for damage or corrosion. Repair if necessary
before installing relay.
4. Check for pin height (pin height should be the same for all terminals within the PDC connector). Repair if nec-
essary before installing relay.
INSTALLATION
The ASD relay is located in the Power Distribution Center (PDC). Refer to label on PDC cover for relay location.
1. Install relay to PDC.
2. Install cover to PDC.
SENSOR-CAMSHAFT POSITION
DESCRIPTION
3.7L V-6
The Camshaft Position Sensor (CMP) on the 3.7L 6-cylinder engine is bolted to the right-front side of the right cyl-
inder head.
4.7L V-8
The Camshaft Position Sensor (CMP) on the 4.7L V-8 engine is bolted to the right-front side of the right cylinder
head.
5.7L V-8
The Camshaft Position Sensor (CMP) on the 5.7L V-8 engine is located below the generator on the timing chain /
case cover on the right/front side of engine.
8I - 10
IGNITION SYSTEM - SERVICE INFORMATION
HB
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