lock DODGE RAM SRT-10 2006 Service Repair Manual

GEAR - INDEPENDENT FRONT SUSPENSION
DESCRIPTION
A rack and pinion steering gear is made up of two
main components, the pinon shaft and the rack. The
gear cannot be adjusted or internally serviced. If a
malfunction or a fluid leak occurs, the gear must be
replaced as an assembly.
REMOVAL
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.
1. Lock the steering wheel.
2. Drain and siphon the power steering fluid from the reservoir.
3. Raise the vehicle.
4. Remove and discard the steering coupler pinch bolt.
5. Remove the power steering hoses from the rack & pinion.
6. Remove the tire and wheel assembly.
7. Remove the tie rod end nuts and separate tie rod ends from the knuckles withpuller8677(Referto19-STEER-
ING/LINKAGE/TIE ROD END - REMOVAL).
8. Remove the skid plate (Refer to 13 - FRAME & BUMPERS/FRAME/FRONT SKID PLATE - REMOVAL).
9. Remove the rack & pinion mounting bolts (1).

GEAR - LINK/COIL
DESCRIPTION
The power steering gear is a recirculating ball type
gear (6). The gear ratio’s used are 12.5:1.
OPERATION
The gear acts as a rolling thread between the worm shaft and rack piston. Theworm shaft is supported by a thrust
bearing at the lower end and a bearing assembly at the upper end. When the worm shaft is turned from input from
the steering column the rack piston moves. The rack piston teeth mesh with the pitman shaft. Turning the worm
shaft, turns the pitman shaft, which turns the steering linkage.
REMOVAL
1. Place the front wheels in a straight-ahead position.
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.
2. Lock the steering wheel.
3. Siphon out as much power steering fluid as possible.
4. Disconnect and cap the fluid hoses from steering gear (Refer to 19 - STEERING/PUMP/HOSES - REMOVAL).

ADJUSTMENTS
ADJUSTMENT
CAUTION: Steering gear must be adjusted in the proper order. If adjustments are not performed in order,
gear damage and improper steering response may result.
NOTE: Adjusting the steering gear in the vehicle is not recommended. Remove gear from the vehicle and
drain the fluid. Then mount gear in a vise to perform adjustments.
1. Remove the steering gear from the vehicle(Referto19-STEERING/GEAR-REMOVAL).
2. Mount the gear carefully into a soft-jawed vise.
CAUTION: Do not overtighten the vise on the gear case. This may affect the adjustment
3. Hold the steering gear upside down over a drain pan and rotate the input shaft back and forth several times
lock-to-lock to discharge the fluid from the steering gear
4. Rotate the input shaft to the left stop and then back-off approximately 45 degrees. Using an inch-pound torque
wrench on the input shaft, record the peak torque required to slowly and evenly rotate the input shaft clockwise
1⁄2turn (180 degrees) starting from the 45 degree position. This peak torque reading is the preload torque. The
preload torque must be within 2 - 10 in-lbs.
5. Rotate the input shaft to its center of travel (approximately 1.5 turns from either stop). Place the torque wrench
on the input shaft with the handle in the vertical position. Rotate the torque wrench slowly and evenly
1⁄4turn (90
degrees) each side of center and record the peak torque measure on or near center. This total on-center torque
reading must be 5 - 9 in-lbs higher than the previously measured preload torque without exceeding a total of 17
in-lbs. The value of the total on-center minus the preload torque is defined as the meshload torque
6. If required, adjust the on-center torque by loosening the adjuster screw lock nut and turning the adjuster screw
until the total on-center and meshload torque readings fall within the specified values. Turn the adjuster screw
clockwise to increase and counterclockwise to decrease the torque reading. While holding the adjuster screw in
place, tighten the lock nut to 34 Nꞏm (25 ft. lbs.).
7. Re-check the preload and on-center torque readings.
8. Install pitman arm on the steering gear (Refer to 19 - STEERING/LINKAGE/PITMAN ARM - INSTALLATION).
9. Reinstall steering gear to the vehicle (Refer to 19 - STEERING/GEAR - INSTALLATION).
SPECIFICATIONS
POWER STEERING GEAR
SPECIFICATIONS
DESCRIPTION SPECIFICATION
Steering Gear
Ty peRecirculating Ball
Gear Code & Ratio 12.5:1
TORQUE
DESCRIPTION Nꞏm Ft. Lbs. In. Lbs.
Preload
To r q u e0.23-1.13 — 2-10
Meshload Torque 0.56-1.02 — 5-9
+ Preload (17 Max)

TORQUE
DESCRIPTION Nꞏm Ft. Lbs. In. Lbs.
Steering Gear Mounting
Frame Bolts196 145 —
Steering Coupler to Gear
Shaft49 36 —
Power Steering Line
Pressure32 23 —
Power Steering Line
Return54 40 —
Power Steering Line
Pressure Line To Pump37 27 —
Steering Gear
Adjustment Screw Locknut34 25 —
Steering Gear
Pitman Shaft Nut305 225 —
Steering Gear
Pitman Shaft Cover Bolts68 50 —
Steering Gear
Valve Housing to Gear
Bolts54 40 —
Steering Gear
Retainer Ring Screw2.26 — 20
Steering Gear
Retainer Ring97 72 —

STEERING GEAR INPUT SHAFT SEAL
REMOVAL
1. Remove the steering gear from the vehicle(Referto19-STEERING/GEAR-REMOVAL).
CAUTION: Do not overtighten the vise on the gear case. This may affect the adjustment
2. Mount the steering gear upside down over a drain pan in a soft jawed vise.
3. Place a drain pan under the gear and rotate the input shaft back and forth several times lock-to-lock to discharge
the fluid from the steering gear
4. Drain all the remaining fluid from the gear.
5. Rotate the input shaft (4) from stop to stop and
count the number of turns using a 12 point socket
(2).
NOTE: The pitman shaft will not clear the housing
if it is not centered.
6. Center the input shaft (4) by rotating it from the
stop back 1 1/2 turns to achieve center position.
7. Remove the pitman shaft (Refer to 19 - STEERING/GEAR/PITMAN SHAFT - REMOVA L ) .
8. Remove the four bolts securing the valve housing
(1).
9. Remove the valve housing (1) from the steering
gear (3).

INSTALLATION
1. Align reference marks and install pitman arm.
2. Install the lock washer and retaining nut on the pit-
man shaft and tighten nut to 251 Nꞏm (185 ft. lbs.).
3. Install the drag link (1) to the pitman arm (5). Install
thenut(4)andtightento54Nꞏm(40ft.lbs.).Then
an additional 90°.
4. Remove the supports and lower the vehicle to the
surface. Center steering wheel and adjust toe,
(Refer to 2 - SUSPENSION/WHEEL ALIGNMENT -
STANDARD PROCEDURE).
5. After adjustment tighten tie rod adjustment sleeve
clamp bolts to 61 Nꞏm (45 ft. lbs.).
NOTE:Positiontheclamponthesleevesoretain-
ing bolt is located on the bottom side of the
sleeve.

1. Raise the front end of the vehicle off the ground until the wheels are freeto turn.
2. Remove the return line from the pump.
NOTE: If vehicle is equipped with a hydraulic booster remove both return lines from the pump.
3. Plug the return line port/ports at the pump.
4. Position the return line/lines into a large container to catch the fluid.
5. While an assistant is filling the pump reservoir start the engine.
6. With the engine running at idle turn the wheel back and forth.
NOTE: Do not contact or hold the wheel against the steering stops.
7. Run a quart of fluid through the system then stop the engine and install the return line/lines.
8. Fill the system with fluid and perform Steering Pump Initial Operation,(Refer to 19 - STEERING/PUMP - STAN-
DARD PROCEDURE).
9. Start the engine and run it for fifteen minutes then stop the engine.
10. Remove the return line/lines from the pump and plug the pump port/ports.
11. Pour fresh fluid into the reservoir and check the draining fluid for contamination. If the fluid is still contaminated,
then flush the system again.
12. Install the return line/lines and perform Steering Pump Initial Operation, (Refer to 19 - STEERING/PUMP -
STANDARD PROCEDURE).
POWER STEERING PUMP - INITIAL OPERATION
WARNING: THE FLUID LEVEL SHOULD BE CHECKED WITH ENGINE OFF TO PREVENT INJURYFROMMOV-
ING COMPONENTS.
CAUTION: MOPAR
ATF+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.
Wipe filler cap clean, then check the fluid level. The dipstick should indicateCOLDwhen the fluid is at normal
temperature.
1. Turn steering wheel all the way to the left.
2. Fill reservoir up to FULL HOT level and crank engine until it just starts.(DO NOT TURN STEERING WHEEL).
Then turn vehicle off. And recheck fluid level, to Full COLD.
3. Crank engine again until it just starts, (DO NOT MOVE STEERING WHEEL). and turn vehicle off. Recheck fluid
leveltoFullCOLD.
4. Turn engine on again, (DO NOT MOVE STEERING WHEEL) and let the vehicle idle for 5 minutes. If possible
apply a 20 in-Hg vacuum to the reservoir, while engine is idling.
5. Turn engine off and recheck fluid level, to FULL COLD.
6.If the Steering gear is replacedensure reservoir is at FULL HOT level, start engine and turn wheel to left. Stop
Engine and recheck fluid level to FULL HOT. Start engine and turn wheel to the right. Stop engine and check
fluid level is at FULL COLD.
7. Fill the pump fluid reservoir to the proper level and let the fluid settlefor at least two (2) minutes.
8. Start the engine. With the engine idling maintain the fluid level.
9. Raise the front wheels off the ground.
10. Slowly turn the steering wheel lock-to-lock 20 times with the engine off while checking the fluid level.
NOTE: For vehicles with long return lines or oil coolers turn wheel 40 times.
11. Lower the front wheels and let the engine idle for two minutes.
12. Turn the steering wheel in both direction and verify power assist and quiet operation of the pump.
If the fluid is extremely foamy or milky looking, allow the vehicle to standa few minutes and repeat the procedure.

CAUTION: Do not run a vehicle with foamy fluid for an extended period. This may cause pump damage.
REMOVAL
GAS ENGINE
1. Drain and siphon the power steering fluid from the
reservoir.
2. Remove the serpentine belt.
CAUTION: Do not remove the fitting on the pump
that the high pressure hose screws into. The fit-
ting may come loose unless it is backed up using
another wrench. If the fitting does come loose, it
must be retightened before continuing. (57 - 67
Nm, 40 - 50 lb.ft.). If this fitting comes out of the
pump body, the internal spring and valve parts will
fall out of the pump and they cannot be reinstalled
properly. If this occurs the pump needs to be
replaced with a new pump.
3. Disconnect the return hose (3).
4. Disconnect the pressure hose (4).
5. Access to remove the three bolts securing the pump to the cylinder head can be gained thru the pulley holes (1).
DIESEL ENGINE
1. Drain and siphon the power steering fluid from the reservoir.
2. Remove the serpentine belt.
CAUTION: Do not remove the fitting on the pump that the high pressure hose screws into. The fitting may
come loose unless it is backed up using another wrench. If the fitting does come loose, it must be retight-
ened before continuing. (57 - 67 Nm, 40 - 50 lb.ft.). If this fitting comes out of the pump body, the internal
spring and valve parts will fall out of the pump and they cannot be reinstalled properly. If this occurs the
pump needs to be replaced with a new pump.
3. Disconnect the return hose.
4. Disconnect the pressure hose.
5. Access to remove the three bolts securing the pump to the cylinder head can be gained thru the pulley holes.
6. Loosen the pump bracket to the block.
7. Remove the 6 intake plenum bolts (1).
8. loosen the inner cooler tube clamp at the intake
plenum and remove the intake plenum.
9. Loosen the inner cooler tube clamp at the radiator
support side and remove the tube from the vehicle.
10. Remove the power steering pump (2) from the top
of the engine compartment where the intake ple-
num was.

INSTALLATION
GAS ENGINE
1. Align the pump with the mounting holes in the left
cylinder head.
2. Install 3 pump mounting bolts through the pulley
access holes (1). Tighten the bolts to 28 Nꞏm (21 ft.
lbs.).
3. Reconnect the pressure line (4) and return hose (3)
to the pump and reservoir (2). Tighten the pressure
line to 31 Nꞏm (23 ft. lbs.).
4. Install the serpentine drive belt, (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
INSTALLATION).
5. Fill the power steering pump, (Refer to 19 -
STEERING/PUMP - STANDARD PROCEDURE).
DIESEL ENGINE
1. Set the power steering pump (2) in place in the
engine compartment from the top.
2. Install the inner cooler tube.
3. Tighten the inner cooler tube clamp at the radiator
support side.
4. Install the 6 intake plenum bolts (2).
5. Tighten the inner cooler tube clamp at the intake
plenum.
6. Install 3 pump mounting bolts through the pulley access holes. Tighten theboltsto28Nꞏm(21ft.lbs.).
7. Tighten the pump bracket to the block.
8. Reconnect the pressure line and return hose to the pump and reservoir. Tightenthepressurelineto37Nꞏm(27
ft. lbs.).
9. Install the serpentine drive belt, (Refer to 7 - COOLING/ACCESSORY DRIVE/DRIVE BELTS - INSTALLATION).
10. Fill the power steering pump, (Refer to 19 - STEERING/PUMP - STANDARD PROCEDURE).

STANDARD PROCEDURE
INITIAL OPERATION
WARNING: The fluid level should be checked with engine off to prevent injury from moving components.
NOTE: Remove as much of the old fluid out of the system as possible with a suction tool or by removing
a hose, when a component has failed. Then refill it with fresh fluid until itis clean. This may have to be
done more than once.
CAUTION: MOPAR
ATF+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.
Wipe filler cap clean, then check the fluid level. The dipstick should indicateCOLDwhen the fluid is at normal
ambient temperature.
1. Fill the pump fluid reservoir to the proper level and let the fluid settlefor at least two minutes.
2. Start the engine and let run for a few seconds then turn engine off.
3. Add fluid if necessary. Repeat the above procedure until the fluid levelremains constant after running the engine.
4. Raise the front wheels off the ground.
5. Slowly turn the steering wheel right and left, lightly contacting the wheel stops at least 20 times.
6. Check the fluid level add if necessary.
7. Lower the vehicle, start the engine, and use the DRB III to activate the hydraulic fan on full fan operation.
8. Turn the steering wheel slowly from lock to lock.
9. Stop the engine, check the fluid level and refill as required and repeat the process
CAUTION: Do not run a vehicle with foamy fluid for an extended period. This may cause pump damage.
10. If the fluid is extremely foamy or milky looking, allow the vehicle to stand a few minutes and repeat the pro-
cedure.
11. While the vehicle is in park, use the DRB III to activate the hydraulic fan to full fan operation and briefly rev the
engine up to 3000 rpm to fully engage the hydraulic fan.
12. Check the fluid level add if necessary.