2023 RAM 1500 Pickup 3.6L V6 24v VVT ETorque UPG I Service & Repair Manual
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1 - Stabilizer Bar Bolts
17 - Rear Suspension / STABILIZER BAR, Rear Suspension / Removal and Installation
REAR SUSPENSION STABILIZER BAR
REMOVAL
1. Raise and support vehicle (Refer to 04 - Vehicle Quick Reference/Hoisting - Standard Procedure) .
2. Disconnect both stabilizer links from the stabilizer bar (Refer to 17 - Rear Suspension/LINK, Stabilizer Bar/Removal and Installation) .
3. Remove the stabilizer bar bolts.
4. Remove stabilizer bar, bushings, and brackets as an assembly.
5. Remove the stabilizer bar brackets from the bushings.
6. Remove the stabilizer bar bushings from the stabilizer bar.
INSTALLATION
Follow the removal procedure in reverse for general reassembly of the components on the vehicle. The steps listed below are calling out specific procedures that
should be followed during installation.
Position the stabilizer bar assembly to the axle and center it with equal spacing on both sides.
Install the stabilizer bar bolts and tighten to the proper (Torque Specifications) .
1 - Track Bar Frame Bolt
2 - Track Bar Axle Bolt
17 - Rear Suspension / TRACK BAR, Rear / Removal and Installation
REAR TRACK BAR WITHOUT TRX
REMOVAL
1. Raise and support the vehicle (Refer to 04 - Vehicle Quick Reference/Hoisting - Standard Procedure) .
2. Support the rear axle with a suitable holding fixture.
3. Remove the track bar frame bolt and DISCARD the nut and bolt.
4. Remove the track bar axle bolt and DISCARD the nut and bolt.
5. Remove the track bar.
INSTALLATION
Follow the removal procedure in reverse for general reassembly of the components on the vehicle. The steps listed below are calling out specific procedures that
should be followed during installation.
In any instance where a bolt is through a rubber bushing, the bolt must be torqued with the vehicle at normal ride height.
Install a NEW track bar axle bolt and a NEW nut but do not tighten at this time.
The rear axle assembly may need to be shifted to one side in order to install upper track bar bolt.
Install a NEW track bar frame bolt and a NEW nut but do not tighten at this time.
Tighten the track bar frame nut to the proper (Torque Specifications) .
Tighten the track bar axle bolt and nut to the proper (Torque Specifications) .
1 - Track Bar Frame Bolt
2 - Track Bar Axle Bolt
17 - Rear Suspension / TRACK BAR, Rear / Removal and Installation
REAR TRACK BAR WITH TRX
REMOVAL
1. Raise and support the vehicle (Refer to 04 - Vehicle Quick Reference/Hoisting - Standard Procedure) .
2. Support the rear axle with a suitable holding fixture.
3. Remove the track bar frame bolt and DISCARD the nut and bolt.
4. Remove the track bar axle bolt and DISCARD the nut and bolt.
5. Remove the track bar.
INSTALLATION
Follow the removal procedure in reverse for general reassembly of the components on the vehicle. The steps listed below are calling out specific procedures that
should be followed during installation.
In any instance where a bolt is through a rubber bushing, the bolt must be torqued with the vehicle at normal ride height.
Install a NEW track bar axle bolt and a NEW nut but do not tighten at this time.
The rear axle assembly may need to be shifted to one side in order to install upper track bar bolt.
Install a NEW track bar frame bolt and a NEW nut but do not tighten at this time.
Tighten the track bar frame nut to the proper (Torque Specifications) .
Tighten the track bar axle bolt and nut to the proper (Torque Specifications) .
19 - Steering / Description
DESCRIPTION
DESCRIPTION
The Electric Power Steering (EPS) consists of the following components:
Component Index
1. EPS Rack and Pinion Steering Gear
2. Instrument Panel Cluster (IPC)
3. Steering Column Control Module (SCCM)
4. Body Control Module (BCM)
5. Steering Column
OPERATION
The standard equipment EPS system provides variable assist to the driver according to driver inputs and the vehicle speed while performing system diagnostic tests
and providing this information to the vehicle electrical system. The SCCM has a Steering Angle Sensor (SAS) which transmits the direction and the angle information
on the Controller Area Network-Chassis (CAN-C) or Controller Area Network-Interior High Speed (CAN-IHS) bus networks. The SCCM has primary and backup
microprocessors with different software algorithms that provide Cyclical Redundancy Checks (CRC) to confirm the SAS position. The EPS warning lamp is used to
visually indicate a fault status of the EPS system to the IPC.
The EPS system is a dry gear system. The EPS system does not contain any hydraulic components such as:
Belt-driven hydraulic pump.
High-pressure hydraulic hoses.
Power steering fluid.
The EPS system will not experience a hydraulic leak. If fluid is detected at the front of the vehicle, on or near the steering gear, investigate other systems.
Turning of the steering wheel is converted into linear (side-to-side) travel through the meshing of the helical pinion teeth with the rack teeth within the steering
gear. The lateral travel pushes and pulls the tie rods to change the direction of the vehicle's front wheels.
Power assist steering is provided by an electric motor and module connected to the steering gear. The EPS system provides variable assist for steering maneuvers
based on several inputs:
Steering wheel position and rate of movement from SAS.
Steering wheel torque from torque sensors in the EPS rack and pinion steering gear.
Vehicle speed received from the Anti-lock Brake System (ABS) module.
0:00
The EPS rack and pinion steering gear is not serviceable and is replaced as a complete assembly. The inner and outer tie rods and the tie rod bellows are serviced
separately from the EPS rack and pinion steering gear.
Manual steering control of the vehicle can be maintained if power steering assist is lost. However, under this condition, steering effort is significantly increased.
Body Control Module (BCM)
Component Index
The BCM receives the following:
CAN-C INPUTS
Steering wheel angle.
Steering wheel angle sensor status.
EPS mode status.
Power steering system type.
EPS warning display request.
The BCM provides the following:
CAN-C OUTPUTS
Vehicle configuration data.
Commanded ignition switch status.
System voltage.
EPS module type.
CAN-IHS OUTPUTS
Steering wheel angle.
Steering wheel angle sensor status.
EPS mode status.
EPS warning display request.
Power steering system type.
EPS Rack and Pinion Steering Gear
Component Index
The EPS rack and pinion steering gear consists of the following components:
Electric motor.
EPS module.
Internal steering torque sensor.
Rack and pinion gear.
If any of the components need to be replace, the EPS rack and pinion steering gear is replaced as a complete assembly.
The EPS rack and pinion steering gear receives the following:
CAN-C INPUTS
Steering wheel angle.
Delta steering wheel angle.
Steering wheel angle sensor status.
Vehicle longitudinal acceleration.
Vehicle lateral acceleration.
ESS engine status.
Drivers Assistance Module (DASM) torque overlay steering request.
Hybrid propulsion system active.
Transmission gear.
STOP/START feature present.
Vehicle speed.
Wheel Revolutions Per Minute (RPM) front left.
Wheel Revolutions Per Minute (RPM) front right.
Commanded ignition switch status.
Engine RPM.
System voltage.
EPS module type.
Vehicle configuration data.
The EPS rack and pinion steering gear provides the following:
CAN-C OUTPUTS
EPS warning display request.
Engine fan activation request for cooling.
EPS mode status.
Power steering system type.
EPS assistance status.
EPS current.
Torque provided by EPS to the steering shaft.
Steering column torque.
Steering column torque valid data.
Instrument Panel Cluster (IPC)
Component Index
The IPC receives the following:
CAN-C INPUTS
EPS module present.
EPS warning display request.
Commanded ignition state.
Steering Column
Component Index
The steering column has been designed to be serviced as an assembly; less wiring, switches, shrouds, steering wheel, etc. Most steering column components can be
serviced without removing the steering column from the vehicle. The adjustable pedal switch is mounted on the left side of the steering column below the multi-
function switch and the ignition switch is mounted to the instrument panel.
Steering Column Control Module (SCCM)
Component Index
The SCCM combines the following components in a single assembly:
Clockspring.
Multifunction switch.
Steering angle sensor.
The SCCM receives the following:
CAN-C INPUTS
Steering position.
Commanded ignition switch status.
System voltage.
The SCCM provides the following:
CAN-C OUTPUTS
Steering wheel angle.
Delta steering wheel angle.
Steering wheel angle sensor status.
Steering wheel angle remainder high precision.
Steering angle polarity.
19 - Steering / Diagnosis and Testing
DIAGNOSIS AND TESTING - STEERING SYSTEM
NOTE:
Verify the correct software and calibration files are loaded in the Electric Power Steering (EPS) system.
If any EPS DTCs are present, perform the appropriate diagnostic procedure before continuing (Refer to 28 - DTC-Based Diagnostics/MODULE, Electric
Power Steering (EPS) /Standard Procedure).
NOTE:
The EPS system is a dry gear system. The EPS system does not contain any hydraulic components such as:
Belt-driven hydraulic pump.
High-pressure hydraulic hoses.
Power steering fluid.
The EPS system will not experience a hydraulic leak. If fluid is detected at the front of the vehicle, on or near the steering gear,
investigate other systems.
NOTE:
The EPS gear may have residual grease from the supplier for water intrusion prevention purposes and does not constitute failure of the
EPS gear.
MECHANICAL PERFORMANCE ISSUES
CONDITION EVALUATION/CORRECTION
STEERING WHEEL IS OFF
CENTER
1 . Perform the wheel alignment standard procedure (Refer to 02 - Front Suspension/Wheel Alignment - Standard Procedure) .
VEHICLE PULLS LEFT OR RIGHT 1 . Perform the wheel alignment standard procedure (Refer to 02 - Front Suspension/Wheel Alignment - Standard Procedure) .
PERCEIVED COLUMN/STEERING
WHEEL FREE PLAY
1. Check pinch bolt torque. Replace pinch bolt with thread locker patch and tighten to the proper (Torque Specifications) .
2. Check steering gear mounting bolt torque. Replace if necessary and tighten to the proper (Torque Specifications) .
3. Rotate the steering wheel back-and-forth while watching the coupling. Observe free-play. Replace steering column as
necessary (Refer to 19 - Steering/Column/Removal and Installation) .
4. If the issue remains despite previous steps, perform further evaluation of the steering joints.
STEERING WHEEL HAS FORE
AND AFT LOOSENESS
1. Check steering wheel bolt torque and tighten to the proper (Torque Specifications) .
2. Check steering column nut torque and tighten to the proper (Torque Specifications) .
PERCEIVED DASH, VEHICLE,
STEERING WHEEL VIBRATION BY
DRIVER
1. Check tire pressure. Inflate tires to specified pressure if necessary.
2. Verify engine tuning/performance (Refer to 09 - Engine/Diagnosis and Testing) .
3. Check the torque of the tie rod jam nut, tie rod end to knuckle nut, and steering gear mounting bolts, and tighten to the
proper (Torque Specifications) .
4. Visually inspect for damaged or misaligned mounts. Check fastener torque. Replace or realign as necessary.
5. While the vehicle is still at 0 mph, turn the steering wheel end lock to end lock to verify if there is vibration only while
steering. Steer in both directions and verify that the noise/vibration follows the steering input. Check TSBs for any known
issues. Replace the steering gear as necessary (Refer to 19 - Steering/Gear/Removal and Installation) .
DIFFICULT STEERING BOTH
DIRECTIONS
1. Disconnect the intermediate shaft and rotate the steering column. If the condition is still present, replace the steering
column (Refer to 19 - Steering/Column/Removal and Installation) .
2. Verify that the steering column intermediate shaft bearing is installed with the Pentastar stamping up. Inspect the steering
column intermediate shaft bearing and replace as necessary (Refer to 19 - Steering/Column/BEARING, Steering Column
CONDITION EVALUATION/CORRECTION
Intermediate Shaft/Removal and Installation) .
STEERING CATCHES/STICKS
1. Refer to “DIFFICULT STEERING BOTH DIRECTIONS”. Then review TSBs for a recent posting. If issue not resolved, proceed
through the following:
2. Check the torque of the tie rod jam nut, tie rod end to knuckle nut, and steering gear mounting bolts, and tighten to the
proper (Torque Specifications) .
3. Visually inspect for damaged or misaligned mounts. Check fastener torque. Replace or realign as necessary.
4. With vehicle on hoist, tires unsupported and engine on, steer gear end lock to end lock and check for smooth operation.
Replace steering gear if steering efforts are not consistent throughout travel (only after all previous components have been
checked).
STEERING WHEEL DOES NOT
RETURN TO CENTER POSITION
1. Refer to recent TSBs, followed by “VEHICLE PULLS LEFT/RIGHT”, then “DIFFICULT STEERING BOTH DIRECTIONS”, then
“STEERING CATCHES/STICKS”.
EXCESSIVE ROAD FEEDBACK
1. Check steering gear mounting bolt torque. Replace if necessary and tighten to the proper (Torque Specifications) . If the
issue remains, rotate steering wheel back-and-forth while inspecting intermediate shaft going into the steering gear. Look for
excessive free-play. Retighten if loose bolt is found. Replace steering column if necessary (Refer to 19 -
Steering/Column/Removal and Installation) .
NOISE, VIBRATION, AND HARSHNESS (NVH) ISSUES
CONDITION EVALUATION/CORRECTION
RATTLE
1. Refer to recent TSBs. If procedures outlined do not fix issue, proceed through the following:
2. Check the torque of the tie rod jam nut, tie rod end to knuckle nut, and steering gear mounting bolts, and tighten to the proper
(Torque Specifications) .
3. If torque was adjusted on the steering gear mounting bolts, perform wheel alignment (Refer to 02 - Front Suspension/Wheel Alignment
- Standard Procedure) .
4. Visually inspect for damaged or misaligned mounts. Check fastener torque. Replace or realign as necessary.
5. Visually inspect wheel mounting bolts for damage or loosen. Check torque. Replace or torque to specification as necessary.
6. Review the stabilizer bar links for damage, looseness, or deformities. Replace and torque to specification as necessary.
7. Rotate the intermediate (steering) shaft in relationship to gear, checking for free-play. Check the steering column nuts and tighten to
specifications as necessary.
8. Inspect the cradle/crossmember for cracks or other damage. Replace as necessary.
EXCESSIVE CLUNK
1. Refer to recent TSBs. If the procedures outlined do not fix issue, proceed through the following:
2. Inspect stabilizer bar links for damage, looseness, or deformities. Replace and torque to specification as necessary.
2. Check the torque of the tie rod jam nut, tie rod end to knuckle nut, and steering gear mounting bolts, and tighten to the proper
(Torque Specifications) .
4. If torque was adjusted on EPS gear assembly, perform wheel alignment (Refer to 02 - Front Suspension/Wheel Alignment - Standard
Procedure) .
5. Visually inspect for damaged or misaligned mounts. Check fastener torque. Replace or realign as necessary.
6. If issue remains despite previous steps, perform further evaluation in the steering joints (Refer to 19 - Steering/Gear/TIE ROD,
Steering/Diagnosis and Testing) .
POPPING 1. Refer to recent TSBs. If procedures outlined do not fix issue, proceed through the following:
CONDITION EVALUATION/CORRECTION
2. Visually inspect for damaged or misaligned mounts. Check fastener torque. Replace or realign as necessary.
3. Make sure the coupling is fully seated on gear input shaft. Retighten or re-seat as necessary.
5. If the previous steps did not fix the issue (Refer to 03 - Differential and Driveline/Diagnosis and Testing) .
4. If issues remain despite previous steps, perform further evaluation in the steering joints (Refer to 19 - Steering/Gear/TIE ROD,
Steering/Diagnosis and Testing) .
SQUEAKING/RUBBING
1. Refer to recent TSBs. If procedures outlined do not fix issue, proceed through the following:
2. While turning the steering wheel, check interference between moving components. Move, realign, or replace shrouds or shaft as
necessary.
3. Remove the clockspring and reinstall steering wheel for testing. If noise is gone, replace the clockspring.
4. Remove the boot seal and recheck for noise. Lubricate the seal as necessary.
5. While a helper turns the steering wheel, use an electronic listening tool to determine which front suspension joint produces the noise.
Replace as necessary.
SCRUBBING/KNOCKING
1. Refer to recent TSBs. If procedures outlined do not fix issue, proceed through the following:
2. Verify the size tire or wheel installed is compatible with the original equipment size.
3. Drive the vehicle, moving accelerator pedal rapidly up and down attempting to locate noise. Try in both forward and reverse. Replace
mounts as necessary.
4. Make sure the wheel house is properly positioned. If not, reposition as necessary.
Check for bent or misaligned components. Correct or replace as necessary.
19 - Steering / Technical Specifications
TORQUE SPECIFICATIONS
TORQUE SPECIFICATIONS - STEERING COLUMN
TORQUE SPECIFICATIONS - STEERING GEAR
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$97.99
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