DODGE RAM SRT-10 2006 Service Repair Manual

INSTALLATION
1. Install relay assembly (4) to battery tray. Tighten
mounting bolts to 4.5 Nꞏm (40 in. lbs.) torque.
2. Connect eight electrical connectors to relays.
3. Connect battery cables to both batteries.

SENSOR-TEMPERATURE/PRESSURE-MAP
DESCRIPTION
The combination, dual function Intake Manifold Air
Temperature Sensor/MAP Sensor (2) is installed into
the top of the intake manifold.
OPERATION
The combination, dual function Intake Manifold Air Temperature Sensor/MAP Sensor is installed into the top of the
intake manifold with the sensor element extending into the air stream.
The IAT portion of the sensor provides an input voltage to the Engine Control Module (ECM) indicating intake man-
ifold air temperature. The MAP portion of the sensor provides an input voltage to the ECM indicating turbocharger
boost pressure.
REMOVAL
The combination, dual function Intake Manifold Air
Temperature Sensor/MAP (IAT/MAP) sensor is
installed (2) into the top of the intake manifold.
1. Clean area around sensor.
2. Disconnect electrical connector (3) from IAT/MAP
sensor.
3. Remove two T-15 Torx headed screws (4).
4. Remove sensor from intake manifold.

5. Check condition of sensor O-ring (2).
INSTALLATION
1. Check condition of sensor o-ring.
2. Lubricate sensor o-ring and sensor hole in intake
manifold cover with clean engine oil.
3. Clean sensor mounting area at intake manifold (1).
4. Position sensor (2) into intake manifold.
5. Install and tighten 2 sensor mounting screws to 1
Nꞏm (9 in. lbs.) torque.
6. Connect electrical connector to sensor.

SENSOR-MAP
DESCRIPTION
A combination, dual function Intake Manifold Air Temperature Sensor/MAPSensor is used. Refer to Intake Air Tem-
perature Sensor/MAP Sensor for information.

SWITCH - PTO
DESCRIPTION
This Engine Control Module (ECM) input is used only on models equipped withaftermarket Power Take Off (PTO)
units.
OPERATION
This input is used only to tell the ECM that the aftermarket PTO (Power Take Off) unit has been engaged. The ECM
will disable (temporarily shut down) certain OBD II diagnostic trouble codes when the PTO unit is engaged.

STEERING
TABLE OF CONTENTS
page page
STEERING
DESCRIPTION ................................. 2
OPERATION ................................... 2
DIAGNOSIS AND TESTING
POWER STEERING SYSTEM ................. 2
POWER STEERING FLOW AND PRESSURE . . . 4
SPECIAL TOOLS
STEERING .................................. 6COLUMN...............................7
GEAR - INDEPENDENT FRONT SUSPENSION..38
GEAR - LINK/COIL.......................43
LINKAGE - INDEPENDENT FRONT
SUSPENSION...........................62
LINKAGE - LINK/COIL....................66
PUMP.................................76
PUMP - SRT10..........................92

STEERING
DESCRIPTION
CAUTION: MOPARATF+4 is to be used in the power steering system. No other power steering or auto-
matic transmission fluid is to be used in the system. Damage may result to the power steering pump and
system if any other fluid is used, and do not overfill.
Power steering systems consist of:
Steering column
Rack and pinion steering gear
Belt driven hydraulic steering pump
Pump pressure and return hoses
Oil Cooler
OPERATION
The steering column shaft isattached to the gear pin-
ion. The rotation of the pinion moves the gear rack
from side-to-side. This lateral action of the rack
pushes and pulls the tie rods (4) to change the direc-
tion of the front wheels.
Power assist is provided by an engine mounted
hydraulic pump which supplies hydraulic fluid pressure
to the steering gear (6).
DIAGNOSIS AND TESTING
POWER STEERING SYSTEM
STEERING NOISE
CONDITION POSSIBLE CAUSES CORRECTION
OBJECTIONAL HISS OR
WHISTLE1. Steering intermediate shaft to dash panel
seal.1. Check and repair seal at dash
panel.
2. Noisy valve in power steering gear. 2. Replace steering gear.

CONDITION POSSIBLE CAUSES CORRECTION
RATTLE OR CLUNK 1. Gear mounting bolts loose. 1. Tighten bolts to specification.
2. Loose or damaged suspension
components.2. Inspect and repair suspension.
3. Internal gear noise. 3. Replace steering gear.
4. Pressure hose in contact with other
components.4. Reposition hose.
5. Loose or damaged intermediate shaft or
column.5. Inspect and repair or replace.
CHIRP OR SQUEAL 1. Loose belt. 1. Adjust or replace.
WHINE OR GROWL 1. Low fluid level. 1. Fill to proper level.
2. Pressure hose in contact with other
components.2. Reposition hose.
3. Internal pump noise. 3. Replace pump.
4. Air in fluid 4. Check for leaks, Evacuate air
from P/S system.
SUCKING AIR SOUND 1. Loose return line clamp. 1. Replace clamp.
2. O-ring missing or damaged on hose
fitting.2. Replace o-ring.
3. Low fluid level. 3. Fill to proper level.
4. Air leak between pump and reservoir. 4. Repair as necessary.
5. Reservoir cap not installed correctly. 5. Install reservoir cap correctly.
SCRUBBING OR
KNOCKING1. Wrong tire size. 1. Verify tire size.
BINDING AND STICKING
CONDITION POSSIBLE CAUSE CORRECTION
DIFFICULT TO TURN WHEEL
STICKS OR BINDS1. Low fluid level. 1. Fill to proper level.
2. Tire pressure. 2. Adjust tire pressure.
3. Steering components (ball
joints/tie rod ends).3 Inspect and repair as necessary.
4. Loose belt. 4. Adjust or replace.
5. Low pump pressure. 5. Pressure test and replace if
necessary.
6. Column shaft coupler binding. 6. Replace coupler.
7. Steering gear worn. 7. Replace gear.
8. Pump seized / Stuck valve 8. Replace pump.

INSUFFICIENT ASST. OR POOR RETURN TO CENTER
CONDITION POSSIBLE CAUSE CORRECTION
HARD TURNING OR MOMENTARY
INCREASE IN TURNING EFFORT1. Tire pressure. 1. Adjust tire pressure.
2. Low fluid level. 2. Fill to proper level.
3. Loose belt. 3. Adjust or replace.
4. Low pump pressure. 4. Pressure test and repair as
necessary.
5. Internal gear leak. 5. Replace gear.
STEERING WHEEL DOES NOT
WANT TO RETURN TO CENTER
POSITION1. Tire pressure. 1. Adjust tire pressure.
2. Wheel alignment. 2. Align front end.
3. Lack of lubrication. 3. Inspect and lubricate suspension
components.
4. High friction in steering gear. 4. Replace gear.
LOOSE STEERING AND VEHICLE LEAD
CONDITION POSSIBLE CAUSE CORRECTION
EXCESSIVE PLAY IN STEERING
WHEEL1. Worn or loose suspension or
steering components.1. Inspect and repair as necessary.
2. Worn or loose wheel bearings. 2. Inspect and repair or adjust
bearings.
3. Steering gear mounting. 3. Tighten gear mounting bolts to
specification.
4. Gear out of adjustment. 4. Replace gear.
5. Worn or loose steering coupler. 5. Inspect and replace as
necessary.
VEHICLE PULLS OR LEADS TO
ONE SIDE.1. Tire Pressure. 1. Adjust tire pressure.
2. Radial tire lead. 2. Rotate tires.
3. Brakes dragging. 3. Repair as necessary.
4. Wheel alignment. 4. Align front end.
5. Steering gear valve bias. 5. Replace steering gear.
POWER STEERING FLOW AND PRESSURE
The following procedure is used to test the operation
of the power steering system on the vehicle. This test
will provide the gallons per minute (GPM) or flow rate
of the power steering pump along with the maximum
relief pressure. Perform test any time a power steering
system problem is present. This test will determine if
the power steering pump or power steering gear is not
functioning properly. The following pressure and flow
test is performed using Power Steering Analyzer Tool
kit 6815 and Adapter Kit 6893.

FLOW AND PRESSURE TEST
1. Check the power steering belt to ensure it is in good condition and adjusted properly.
2. Connect pressure gauge hose from the Power Steering Analyzer to adapter6826.
3. Connect tube 6825A to Power Steering Analyzer test valve end.
4. Disconnect the high pressure hose from the power steering pump.
5. Connect the tube 6825A to the pump fitting.
6. Connect the power steering hose from the steering gear to the adapter 6826.
NOTE: If fluid leaked from the steering system, it should be filled to correct lervel prior to starting the
engine.
7. Open the test valve completely.
8. Start engine and let idle long enough to circulate power steering fluid through flow/pressure test gauge and to get
air out of the fluid. Then shut off engine.
9. Check fluid level, add fluid as necessary. Start engine again and let idle.
10. Gauge should read below 862 kPa (125 psi), if above, inspect the hoses for restrictions and repair as neces-
sary. The initial pressure reading should be in the range of 345-552 kPa (50-80 psi).
11. Increase the engine speed to 1500 RPM and read the flow meter. If the flowrate (GPM) is below specification,
(refer to pump specification chart for GPM) the pump should be replaced.
CAUTION: The following test procedure involves testing maximum pump pressure output and flow control
valve operation. Do not leave valve closed for more than three seconds as the pump could be damaged.
12. Close valve fully three times and record highest pressure indicated each time.All three readings must be
above specifications and within 345 kPa (50 psi) of each other.
Pressures above specifications but not within 345 kPa (50 psi) of each other, replace pump.
Pressures within 345 kPa (50 psi) of each other but below specifications, replace pump.
13. Open the test valve and turn the steering wheel to the extreme left and right positions three times against the
stops. Record the highest pressure reading at each position. Compare readings to the pump specifications
chart. If pressures readings are not within 50 psi of each other, the gear isleaking internally and must be
replaced.
CAUTION: Do not force the pump to operate against the stops for more than 2 to3 seconds at a time
because, pump damage will result.
PUMP SPECIFICATION
ENGINE RELIEF PRESSURE ± 65 FLOW RATE (GPM) AT 1500 RPM
1500 series 11032 kPa (1615 ± 65 psi) 3.1 - 3.5
2500 & 3500
series12400 kPa (1800 ± 50 psi) 3.5 - 4.0