2006 DODGE RAM SRT-10 ignition

1. Remove air duct and air resonator box at throttle
body.
2. Disconnect electrical connector (2) at throttle body.
3. Remove 4 throttle body mounting bolts (4).
4. Remove throttle body from intake manifold.
5. Check condition of throttle body O-ring (2).
6. If the throttle body has been changed, the following
procedure must be performed:
a. Disconnect negative battery cable from battery.
Leave cable disconnected for approximately 90
seconds.
b. Reconnect cable to battery.
c. Turn ignition switch ON, but do not crank
engine.
d. Leave ignition switch ON for a minimum of 10
seconds. This will allow PCM to learn throttle
body electrical parameters.

4. Install 4 mounting bolts. (Refer to 14 - FUEL SYS-
TEM/FUEL DELIVERY - SPECIFICATIONS)
5. Install electrical connector.
6. Install air plenum.
7.If the throttle body has been changed, the fol-
lowing procedure must be performed:
a. Disconnect negative battery cable from battery.
Leave cable disconnected for approximately 90
seconds.
b. Reconnect cable to battery.
c. Turn ignition switch ON, but do not crank
engine.
d. Leave ignition switch ON for a minimum of 10
seconds. This will allow PCM to learn throttle
body electrical parameters.
8.3L - SRT-10
1. Mount throttle body and wiring clips , tighten bolts to 12 N.m (105 in. lbs.).
2. Connect electrical connector to throttle position sensor.
3. Install the throttle cable.
4. Install the air cleaner housing, refer to Engine/Air Intake System/AirCleaner Housing.
5. Connect the negative battery cable and install the battery cover.

OPERATION
The 5.7L V-8 engine does not use a separate Throttle Position Sensor (TPS) on the throttle body.
The 3-wire TPS provides the Powertrain Control Module (PCM) with an input signal (voltage) that represents the
throttle blade position of the throttle body. The sensor is connected to the throttle blade shaft. As the position of the
throttle blade changes, the output voltage of the TPS changes.
The PCM supplies approximately 5 volts to the TPS. The TPS output voltage (input signal to the PCM) represents
the throttle blade position. The PCM receives an input signal voltage fromthe TPS. This will vary in an approximate
range of from .26 volts at minimum throttle opening (idle), to 4.49 volts atwide open throttle. Along with inputs from
other sensors, the PCM uses the TPS input to determine current engine operating conditions. In response to engine
operating conditions, the PCM will adjust fuel injector pulse width and ignition timing.
The PCM needs to identify the actions and position of the throttle blade at all times. This information is needed to
assist in performing the following calculations:
Ignition timing advance
Fuel injection pulse-width
Idle (learned value or minimum TPS)
Off-idle (0.06 volt)
Wide Open Throttle (WOT) open loop (2.608 volts above learned idle voltage)
Deceleration fuel lean out
Fuel cutoff during cranking at WOT (2.608 volts above learned idle voltage)
A/C WOT cutoff (certain automatic transmissions only)
REMOVAL
3.7L V6
The Throttle Position Sensor (TPS) (1) is mounted to
the throttle body.
1. Remove air resonator tube at throttle body.
2. Disconnect TPS electrical connector.
3. Remove 2 TPS mounting screws.
4. Remove TPS.

FILTER - FUEL / WATER SEPARATOR
DESCRIPTION
The fuel filter/water separator assembly is located on left side of engineabove the starter motor. The assembly also
includes the fuel heater, Water-In-Fuel (WIF) sensor and a screened banjobolt attached at the bottom of the fuel
filter canister.
OPERATION
The fuel filter/water separator protects the fuel injection pump by removing water and contaminants from the fuel.
The construction of the filter/separator allows fuel to pass through it, but helps prevent moisture (water) from doing
so. Moisture collects at the bottom of the canister.
Refer to the maintenance schedules in the owners manual for the recommended fuel filter replacement intervals.
For draining of water from canister, refer to Fuel Filter/Water SeparatorRemoval/Installation section.
There is a screened banjo bolt that is attached at the bottom of the fuel filter canister. It provides additional filtering
for the high pressure fuel system components.
A Water-In-Fuel (WIF) sensor is attached to the side of fuel filter housing. Refer to Water-In-Fuel Sensor Descrip-
tion/Operation.
The fuel heater is installed into the top of the filter/separator housing.Refer to Fuel Heater Description/Operation.
REMOVAL
Refer to maintenance schedules in this manual, or the
Owner’s Manual for recommended fuel filter replace-
ment intervals.
Draining water from fuel filter/water separator
housing:
The housing drain valve (9) serves two purposes. One
is topartiallydrain the filter housing of excess water.
The other is tocompletelydrain the housing for fuel
filter, drain valve, heater element or water-in-fuel sen-
sor replacement.
The filter housing should be partially drained when-
ever the water-in-fuel warning lamp remains illumi-
nated. (Note that lamp will be illuminated for
approximately two seconds when ignition key is ini-
tially placed in ON position for a bulb check).
1. A drain hose (7) is located at the bottom of drain
valve. Place drain pan under drain hose.
2.With engine not running,rotate drain valve han-
dle counter-clockwise (rearward) to OPEN (DRAIN)
position. Hold drain valve open until all water and
contaminants have been removed and clean fuel
exits.
3. If drain valve, fuel heater element or Water-In-Fuel (WIF) sensor is being replaced, drain housing completely.
Dispose of mixture in drain pan according to applicable regulations.
4. After draining operation, rotate valve handle clockwise (forward) to the CLOSE position.

HEATER-FUEL
DESCRIPTION
The fuel heater assembly is located on the side of the fuel filter housing and internal to the fuel filter housing .
The heater/element assembly is equipped with a temperature sensor (thermostat) that senses fuel temperature. This
sensor is attached to the fuel heater/element assembly.
OPERATION
The fuel heater is used to prevent diesel fuel from waxing during cold weather operation.
When the fuel temperature is below 45° ±8 F (7°C), the temperature sensor allows current to flow to the heater
element warming the fuel. When the fuel temperature is above 75° ±8 F (24°C), the sensor stops current flow to the
heater element.
Battery voltage to operate the fuel heater element is supplied from the ignition switch and through a solid stated
device in the IPM.The fuel heater element and
solid state device in IPMinstead offuel heater relayare not
computer controlled.
The heater element operates on 12 volts, 300 watts at 0° F (-18° C).
DIAGNOSIS AND TESTING
FUEL HEATER
The fuel heater is used to prevent diesel fuel from waxing during cold weather operation.
NOTE: The fuel heater element,
solid state device in IPMinstead offuel heater relayand fuel heater tem-
perature sensor are not controlled by the Engine Control Module (ECM).
A malfunctioning fuel heater can cause a wax build-up in the fuel filter/water separator. Wax build-up in the filter/
separator can cause engine starting problems and prevent the engine from revving up. It can also cause blue or
white fog-like exhaust. If the heater is not operating in cold temperatures, the engine may not operate due to fuel
waxing.
The fuel heater assembly is located on the side of fuel filter housing and internal to the fuel filter housing.
The heater assembly is equipped with a built-in fuel temperature sensor (thermostat) that senses fuel temperature.
When fuel temperature drops below 45° ± 8° F (7° C), the sensor allows current to flow to built-in heater element
to warm fuel. When fuel temperature rises above 75 °± 8° F (24° C), the sensorstops current flow to heater ele-
ment (circuit is open).
Voltage to operate fuel heater element is supplied from ignition switch, through
solid state device in IPM,tofuel
temperature sensor and on to fuel heater element.
The heater element operates on 12 volts, 300 watts at 0 °F (-18° C). As temperature increases, power requirements
decrease.
A minimum of 7 volts is required to operate the fuel heater. The resistance value of the heater element is less than
1 ohm (cold) and up to 1000 ohms warm.
TESTING
1. Disconnect electrical connector from thermostat.
Ambient temperature must be below the circuit close temperature. If necessary, induce this ambient temperature by
placing ice packs on thermostat to produce an effective ambient temperature below circuit close temperature.
Measure resistance across two pins. Operating range is 0.3 - 0.45 Ohms.
2. If resistance is out of range, remove thermostat and check resistance across terminal connections of heater. The
heater can be checked at room temperature. Operating range is 0.3 - 0.45 Ohms.
3. Replace heater if resistance is not within operating range.
4. If heater is within operating range, replace heater thermostat.

SENSOR-WATER IN FUEL
DESCRIPTION
The Water-In-Fuel (WIF) sensor (5) is located on the
side of the fuel filter/water separator canister.
OPERATION
The sensor sends an input to the Engine Control Module (ECM) when it senses water in the fuel filter/water sep-
arator. As the water level in the filter/separator increases, the resistance across the WIF sensor decreases. This
decreaseinresistanceissentasasignaltotheECMandcomparedtoahighwater standard value. Once the value
reaches 30 to 40 kilohms, the ECM will activate the water-in-fuel warning lamp through CCD bus circuits. This all
takes place when the ignition key is initially put in the ON position. The ECM continues to monitor the input while
the engine is running.
REMOVAL
The Water-In-Fuel (WIF) sensor is located at the side of fuel filter/waterseparator canister. (Refer to 14 - FUEL
SYSTEM/FUEL DELIVERY/FUEL TANK MODULE - INSTALLATION).

page page
COLUMN
DESCRIPTION
DESCRIPTION ............................... 8
DESCRIPTION - SRT10 ....................... 9
DIAGNOSIS AND TESTING
STEERING COLUMN ......................... 9
REMOVAL ..................................... 9
INSTALLATION ............................... 12
SPECIFICATIONS
TORQUE ................................... 14
IGNITION SWITCH
DESCRIPTION ................................ 15
OPERATION .................................. 15
DIAGNOSIS AND TESTING
IGNITION SWITCH .......................... 15
REMOVAL .................................... 16
INSTALLATION ............................... 17
IGNITION SWITCH - SRT10
REMOVAL - SRT10 ............................ 19
INSTALLATION - SRT10 ....................... 21
KEY-IN IGNITION SWITCH
DESCRIPTION ................................ 22
DIAGNOSIS AND TESTING
IGNITION SWITCH AND KEY LOCK
CYLINDER................................. 22KEY CYLINDER
REMOVAL .................................... 23
INSTALLATION ............................... 23
STEERING WHEEL
REMOVAL .................................... 24
INSTALLATION ............................... 24
TILT LEVER KNOB RELEASE
REMOVAL .................................... 25
INSTALLATION ............................... 26
GEAR SHIFT LEVER
REMOVAL .................................... 28
INSTALLATION ............................... 29
UPPER STEERING COUPLING
REMOVAL .................................... 32
INSTALLATION ............................... 33
LOWER STEERING COUPLING
REMOVAL
ALL LD & HD EXCEPT 4X4 HD ............... 34
4X4 HD .................................... 34
INSTALLATION
ALL LD & HD EXCEPT 4X4 HD ............... 36
4X4 HD .................................... 36

COLUMN
DESCRIPTION
DESCRIPTION
NOTE: The steering column on vehicles with an automatic transmission may not be equipped with an inter-
nal locking shaft that allows the ignition key cylinder to be locked with the key. Alternative methods of lock-
ing the steering wheel for service will have to be used.
The tilt and standard column (1) has been designed to be serviced as an assembly; less wiring, switches, shrouds,
steering wheel (4), etc. Most steering column components can be serviced without removing the steering column
from the vehicle.
To service the steering wheel, switches or airbag, refer to Restraints andfollow all WARNINGS and CAUTIONS.
WARNING: The airbag system is a sensitive, complex electro-mechanical unit. Before attempting to diag-
nose, remove or install the airbag system components you must first disconnect and isolate the battery
negative (ground) cable. Then wait two minutes for the system capacitor todischarge. Failure to do so
could result in accidental deployment of the airbag and possible personalinjury. The fasteners, screws, and
bolts, originally used for the airbag components, have special coatings and are specifically designed for the
airbag system. They must never be replaced with any substitutes. Anytime anew fastener is needed,
replace with the correct fasteners provided in the service package or fasteners listed in the parts books.
CAUTION: Do not hammer on steering column shaft. This may cause damage to the shaft or bearing.
CAUTION: Do not attempt to remove the pivot bolts to disassemble the tilting mechanism. Do not remove
shaft lock plate or plate retainer. This will damage the column.
CAUTION: Do not attempt to remove or modify the park lock slider or link.
NOTE: When servicing the steering wheel after removing the old bolt, a new bolt must be used when install-
ing.
NOTE: When servicing the coupler a new bolt must be used when installing.