light DODGE RAM SRT-10 2006 Service Repair Manual

INSTALLATION
3.7L
1. If fuel injectors are to be installed, (Refer to 14 -
FUEL SYSTEM/FUEL INJECTION/FUEL INJEC-
TOR - INSTALLATION).
2. Clean out fuel injector machined bores in intake
manifold.
3. Apply a small amount of engine oil to each fuel
injector O-ring. This will helpin fuel rail installation.
4. Position fuel rail/fuel injector assembly to machined
injector openings in cylinder head.
5. Guide each injector into cylinder head. Be careful
not to tear injector O-rings.
6. Pushrightside of fuel rail down until fuel injectors
have bottomed on cylinder head shoulder. Push
leftfuel rail down until injectors have bottomed on
cylinder head shoulder.
7. Install 4 fuel rail mounting bolts and tighten. (Refer
to 14 - FUEL SYSTEM/FUEL DELIVERY - SPECI-
FICATIONS)
8. Install 6 ignition coils. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/IGNITION COIL - INSTALLA-
TION)
9. Connect electrical connectors to throttle body.
10. Connect electrical connectors at all fuel injectors.
To install connector, refer to. Push connector onto
injector (1) and then push and lock red colored slider (2). Verify connector is locked to injector by lightly tugging
on connector.
11. Connect necessary vacuum lines to throttle body.
12. Install air resonator mounting bracket near front of throttle body (2 bolts).
13. Connect fuel line latch clip and fuel line to fuel rail. (Refer to 14 - FUEL SYSTEM/FUEL DELIVERY/QUICK
CONNECT FITTING - STANDARD PROCEDURE)
14. Install air box to throttle body.
15. Install air duct to air box.
16. Connect battery cable to battery.
17. Start engine and check for leaks.

4.7L
1. If fuel injectors are to be installed, (Refer to 14 -
FUEL SYSTEM/FUEL INJECTION/FUEL INJEC-
TOR - INSTALLATION).
2. Clean out fuel injector machined bores in intake
manifold.
3. Apply a small amount of engine oil to each fuel
injector O-ring. This will helpin fuel rail installation.
4. Position fuel rail/fuel injector assembly to machined
injector openings in cylinder head.
5. Guide each injector into cylinder head. Be careful
not to tear injector O-rings.
6. Pushrightside of fuel rail down until fuel injectors
have bottomed on cylinder head shoulder. Push
leftfuel rail down until injectors have bottomed on
cylinder head shoulder.
7. Install 4 fuel rail mounting bolts and tighten. (Refer
to 14 - FUEL SYSTEM/FUEL DELIVERY - SPECI-
FICATIONS)
8. Install 8 ignition coils. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/IGNITION COIL - INSTALLA-
TION)
9. Connect electrical connectors to throttle body.
10. Connect electrical connectors at all fuel injectors.
To install connector, refer to. Push connector onto
injector (1) and then push and lock red colored slider (2). Verify connector is locked to injector by lightly tugging
on connector.
11. Connect necessary vacuum lines to throttle body.
12. Install air resonator mounting bracket near front of throttle body (2 bolts).
13. Connect fuel line latch clip and fuel line to fuel rail. (Refer to 14 - FUEL SYSTEM/FUEL DELIVERY/QUICK
CONNECT FITTING - STANDARD PROCEDURE)
14. Install air box to throttle body.
15. Install air duct to air box.
16. Connect battery cable to battery.
17. Start engine and check for leaks.

5.7L
1. If fuel injectors are to be installed, (Refer to 14 -
FUEL SYSTEM/FUEL INJECTION/FUEL INJEC-
TOR - INSTALLATION).
2. Clean out fuel injector machined bores in intake
manifold.
3. Apply a small amount of engine oil to each fuel
injector O-ring. This will helpin fuel rail installation.
4. Position fuel rail/fuel injector assembly to machined
injector openings in intake manifold.
5. Guide each injector into intake manifold. Be careful
not to tear injector O-rings.
6. Pushrightside of fuel rail down until fuel injectors
have bottomed on shoulders. Pushleftfuel rail
down until injectors have bottomed on shoulders.
7. Install 4 fuel rail holddown clamps and 4 mounting
bolts (1) (Refer to 14 - FUEL SYSTEM/FUEL
DELIVERY - SPECIFICATIONS).
8. Connect electrical connector to throttle body.
9. Connect electrical connectors at all fuel injectors.
Push connector onto injector (1) and then push and
lock red colored slider (2). Verify connector is
locked to injector by lightly tugging on connector.
10. Connect fuel line latch clip and fuel line to fuel
rail. (Refer to 14 - FUEL SYSTEM/FUEL DELIV-
ERY/QUICK CONNECT FITTING - STANDARD
PROCEDURE).
11. Install air resonator to throttle body (2 bolts).
12. Install flexible air duct to air box.
13. Connect battery cable to battery.
14. Start engine and check for leaks.
8.3L - SRT-10
1. Install the fuel injectors to the fuel rail.
2. Install fuel rail under throttle body.
3. Apply a light coating of clean engine oiltotheO-ringonthenozzleendofeach injector.
4. Insert fuel injector nozzles into openings in intake manifold. Seat theinjectors in place. Tighten fuel rail bolts to
12 Nꞏm (105 in. lbs.).
5. Attach electrical connectors to fuel injectors.

1. Disconnect electrical connector from crankshaft
position sensor.
2. Remove sensor mounting bolt.
3. Pull sensor out. A light tap to top of sensor may
ease removal.
INSTALLATION
3.7L V-6
1. Clean out machined hole in engine block.
2. Apply a small amount of engine oil to sensor O-ring
(3).
3. Install sensor into engine block with a slight rocking
and twisting action.
CAUTION: Before tightening sensor mounting bolt,
be sure sensor is completely flush to cylinder
block. If sensor is not flush, damage to sensor
mounting tang may result.
4. Install mounting bolt and tighten to 28 Nꞏm (21 ft.
lbs.) torque.
5. Connect electrical connector to sensor.
6. Lower vehicle.

4.7L V-8
1. Clean out machined hole in engine block.
2. Apply a small amount of engine oil to sensor
o-ring.
3. Install sensor (1) into engine block with a slight
rocking and twisting action.
CAUTION: Before tightening sensor mounting bolt,
be sure sensor is completely flush to cylinder
block. If sensor is not flush, damage to sensor
mounting tang may result.
4. Install mounting bolt and tighten to 28 Nꞏm (21 ft.
lbs.) torque.
5. Connect electrical connector to sensor.
6. Lower vehicle.
5.7L V-8
1. Clean out machined hole in engine block.
2. Apply a small amount of engine oil to sensor
o-ring.
3. Install sensor (4) into engine block with a slight
rocking and twisting action.
CAUTION: Before tightening sensor mounting bolt,
be sure sensor is completely flush to cylinder
block. If sensor is not flush, damage to sensor
mounting tang may result.
4. Install mounting bolt (3) and tighten to 28 Nꞏm (21
ft. lbs.) torque.
5. Connect electrical connector to sensor.
6. Lower vehicle.
8.3L - SRT-10
1. Slide the sensor into the hole.
2. Install and tighten the mounting bolt to 11 Nꞏm (95 in. lbs.) torque.
3. Connect the electrical connector to the sensor and lock.

12. Remove the fuel injector from the fuel rail.
INSTALLATION
3.7/ 4.7/ 5.7L
1. Install fuel injector(s) into fuel rail assembly and install retainingclip(s).
2. If same injector(s) is being reinstalled, install new O-ring(s).
3. Apply a small amount of clean engine oil to each injector O-ring. This will aid in installation.
4. Install fuel rail. (Refer to 14 - FUEL SYSTEM/FUEL DELIVERY/FUEL RAIL - INSTALLATION)
5. Start engine and check for fuel leaks.
8.3L - SRT-10
1. Install the fuel injectors to the fuel rail.
2. Install fuel rail under throttle body.
3. Apply a light coating of clean engine oiltotheO-ringonthenozzleendofeach injector.
4. Insert fuel injector nozzles into openings in intake manifold. Seat theinjectors in place. Tighten fuel rail bolts to
12 Nꞏm (105 in. lbs.).
5. Attach electrical connectors to fuel injectors.
6. Connect the electrical connector to the MAP sensor and Coolant Temperature sensor.
7. Connect the electrical connector to the TPS and Idle Air Control.
8. Install the wiring harness to the wiring clips under the throttle body.
9. Connect fuel supply tube to fuel rail. Refer to Quick Connect Fittings inthe Fuel Delivery section
10. Install the negative battery cable and install the battery cover.
11. Install the air cleaner assembly, refer to the Engine/Air Intake System/Air Cleaner Housing for more information.
12. Use the DRBIII
scan tool ASD Fuel System Test to pressurize the fuel system. Check for leaks.

8.3L - SRT-10
The idle air control motor is mounted at the front right
of the intake manifold.
OPERATION
3.7L V-6/4.7L V-8
A separate IAC motor is not used with the 5.7L V-8 engine.
At idle, engine speed can be increased by retracting the IAC motor pintle and allowing more air to pass through the
port, or it can be decreased by restricting the passage with the pintle and diminishing the amount of air bypassing
the throttle plate.
The IAC is called a stepper motor because it is moved (rotated) in steps, or increments. Opening the IAC opens an
air passage around the throttle blade which increases RPM.
The PCM uses the IAC motor to control idle speed (along with timing) and to reach a desired MAP during decel
(keep engine from stalling).
The IAC motor has 4 wires with 4 circuits. Two of the wires are for 12 volts andground to supply electrical current
to the motor windings to operate the stepper motor in one direction. The other2wiresarealsofor12voltsand
ground to supply electrical current to operate the stepper motor in the opposite direction.
To make the IAC go in the opposite direction, the PCM just reverses polarityon both windings. If only 1 wire is
open, the IAC can only be moved 1 step (increment) in either direction. To keeptheIACmotorinpositionwhenno
movement is needed, the PCM will energize both windings at the same time. This locks the IAC motor in place.
In the IAC motor system, the PCM will count every step that the motor is moved. This allows the PCM to determine
the motor pintle position. If the memory is cleared, the PCM no longer knowsthe position of the pintle. So at the
first key ON, the PCM drives the IAC motor closed, regardless of where it wasbefore. This zeros the counter. From
this point the PCM will back out the IAC motor and keep track of its position again.
When engine rpm is above idle speed, the IAC is used for the following:
Off-idle dashpot (throttle blade will close quickly but idle speed will notstopquickly)
Deceleration air flow control
A/C compressor load control (also opens the passage slightly before the compressor is engaged so that the
engine rpm does not dip down when the compressor engages)
Power steering load control
The PCM can control polarity of the circuit to control direction of the stepper motor.
IAC Stepper Motor Program:The PCM is also equipped with a memory program that records the number of steps
the IAC stepper motor most recently advanced to during a certain set of parameters. For example: The PCM was
attempting to maintain a 1000 rpm target during a cold start-up cycle. The last recorded number of steps for that
may have been 125. That value would be recorded in the memory cell so that thenext time the PCM recognizes the

INSTALLATION
3.7L V-6
The Throttle Position Sensor (TPS) (1) is mounted to
the throttle body.
The throttle shaft end of throttle body slides into a
socket in TPS. The TPS must be installed so that it
can be rotated a few degrees. (If sensor will not
rotate, install sensor with throttle shaft on other side of
socket tangs). The TPS will be under slight tension
when rotated.
1. Install TPS and retaining screws.
2. Tighten screws to 7 Nꞏm (60 in. lbs.) torque.
3. Connect TPS electrical connector to TPS.
4. Manually operate throttle (by hand) to check for
any TPS binding before starting engine.
5. Install air cleaner tube to throttle body.

4.7L V-8
The throttle shaft end of throttle body (5) slides into a
socket in TPS. The TPS must be installed so that it
can be rotated a few degrees. If sensor will not rotate,
install sensor with throttle shaft on other side of socket
tangs. The TPS will be under slight tension when
rotated.
1. Install TPS and two retaining bolts.
2. Tighten bolts to 7 Nꞏm (60 in. lbs.) torque.
3. Manually operate throttle control lever by hand to
check for any binding of TPS.
4. Connect TPS electrical connector to TPS.
5. Install air duct/air box to throttle body.

8.3L - SRT-10
The TPS is attached to the throttle body.
The throttle shaft end of the throttle body slides into a
socket in the TPS. When indexed correctly, the TPS
can rotate a few degrees to line up the mounting
screw holes with the screw holes in the throttle body.
If the sensor will not rotate into place, install the sen-
sor with the throttle shaft on the other side of the
socket tangs. The TPS has slight tension when rotated
to align the mounting holes.
1. Install TPS and mounting screws.
2. Attach electrical connector to the TPS.