DODGE RAM SRT-10 2006 Service Repair Manual

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PUMP
DESCRIPTION ................................ 77
OPERATION .................................. 77
DIAGNOSIS AND TESTING
PUMP LEAKAGE ............................ 77
STANDARD PROCEDURE
FLUSHING POWER STEERING SYSTEM . . . . . 77
POWER STEERING PUMP - INITIAL
OPERATION................................ 78
REMOVAL
GAS ENGINE ............................... 79
DIESEL ENGINE............................ 79
INSTALLATION
GAS ENGINE ............................... 80
DIESEL ENGINE............................ 80
SPECIFICATIONS
TORQUE ................................... 81
FLUID
DESCRIPTION ................................ 82
STANDARD PROCEDURE
POWER STEERING FLUID LEVEL
CHECKING................................. 82
FLUID COOLER
REMOVAL .................................... 83
INSTALLATION ............................... 83
HOSES - I.F.S.
REMOVAL
RETURN HOSE - GEAR TO COOLER ......... 85PRESSURE HOSE .......................... 85
RETURN HOSE - RESERVOIR TO COOLER . . 85
INSTALLATION
RETURN HOSE - GEAR TO COOLER ......... 86
PRESSURE HOSE .......................... 86
RETURN HOSE - RESERVOIR TO COOLER . . 86
HOSES - LINK/COIL
REMOVAL
RETURN HOSE - GEAR TO COOLER ......... 87
PRESSURE HOSE .......................... 87
RETURN HOSE - RESERVOIR TO COOLER . . 87
INSTALLATION
RETURN HOSE - GEAR TO COOLER ......... 88
PRESSURE HOSE .......................... 88
RETURN HOSE - RESERVOIR TO COOLER . . 88
SWITCH-POWER STEERING PRESSURE
DESCRIPTION ................................ 89
OPERATION .................................. 89
REMOVAL - 5.7L - HD VEHICLES ONLY ......... 89
INSTALLATION - 5.7L - HD VEHICLES ONLY .... 89
PULLEY
REMOVAL .................................... 90
INSTALLATION ............................... 90
RESERVOIR
REMOVAL .................................... 91
INSTALLATION ............................... 91

PUMP
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.
The pump is connected to the steering gear via the pressure hose and the return hose. The pump shaft has a
pressed-on pulley that is belt driven by the crankshaft pulley.
All vehicles are equipped with a power steering fluid cooler.
NOTE: Power steering pumps are not interchangeable with pumps installed on other vehicles.
OPERATION
Hydraulic pressure is provided for the power steering
gear by the belt driven power steering pump (2). The
power steering pumps are constant flow rate and dis-
placement, vane-type pumps.
DIAGNOSIS AND TESTING
PUMP LEAKAGE
The pump is serviced as an assembly and should not be disassembled. The plastic pump reservoir and the reser-
voir o-rings can be replaced.
Check for leaks in the following areas:
Pump shaft seal behind the pulley
Pump to reservoir O-ring
Reservoir cap
Pressure and return lines
Flow control valve fitting
STANDARD PROCEDURE
FLUSHING POWER STEERING SYSTEM
Flushing is required when the power steering/hydraulic booster system fluid has become contaminated. Contami-
nated fluid in the steering/booster system can cause seal deterioration and affect steering gear/booster spool valve
operation.
NOTE: The engine should not be run so that all of the fluid is drained from thesystem. The pump should
never be run without fluid.

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).

SPECIFICATIONS
TORQUE
DESCRIPTION Nꞏm Ft. Lbs. In. Lbs.
Power Steering Pressure
Switch10 — 80
Power Steering Line
Pressure Line32 23 —
Power Steering Line
Return Line
HD51 38 —
Power Steering Line
Return Line
LD50 37 —
Power Steering Line
Pressure Line To Pump31 23 —
Power Steering Pump
Mounting Bolts28 21 —
Power Steering Pump
Reservoir Bolts13 10 120
Power Steering Pump
Bracket Bolts5562

FLUID
DESCRIPTION
NOTE: It is normal that some pressure will build up inside the reservoir, especially, with a warm vehicle. A
slight popping noise upon removal ofthe cap is normal. The fluid level should read between the ADD and
the FULL COLD marks. When the fluid is hotit should read between ADD and FULLHOT marks. Only add
fluid when the vehicle is cold.
The recommended fluid for the power steering system is Mopar
AT F + 4 .
Mopar
ATF+4, when new is red in color. The ATF+4 is dyed red so it can be identified from other fluids used in the
vehicle such as engine oil or antifreeze. The red color is not permanent andis not an indicator of fluid condition, As
the vehicle is driven, the ATF+4 will begin to look darker in color and may eventually become brown.THIS IS NOR-
MAL.ATF+4 also has a unique odor that may change with age. Consequently, odor and color cannot be used to
indicate the fluid condition or the need for a fluid change.
STANDARD PROCEDURE
POWER STEERING FLUID LEVEL CHECKING
WARNING: FLUID LEVEL SHOULD BE CHECKED WITH THE ENGINE OFF TO PREVENT PERSONAL INJURY
FROM MOVING PARTS.
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.
The power steering fluid level can be viewed on the dipstick attached to thefiller cap. There are two ranges listed
on the dipstick, COLD and HOT. Before opening power steering system, wipe the reservoir filler cap free of dirt and
debris. Remove the cap and check the fluid level on its dipstick. When the fluid is at normal ambient temperature,
approximately 21°C to 27°C (70°F to 80°F), the fluid level should read between the minimum and maximum area of
the cold range. When the fluid is hot, fluid level is allowed to read up to thehighest end of the HOT range. Only add
fluid when the vehicle is cold.
Use only Mopar
AT F + 4 .Do not overfill the power steering system.

FLUID COOLER
REMOVAL
1. Drain and siphon the power steering fluid.
2. Disconnect the return and supply hoses connected to the power steering fluid cooler.
3. Remove the mounting bracket bolts (2) securing
the fluid cooler (1) to the brace. (V6&V8)
4. Remove the mounting bracket bolts (3) securing
the fluid cooler (1) to the brace. (Diesel engine)
5. Remove the fluid cooler from the vehicle.
INSTALLATION
1. Install the fluid cooler (1) to the vehicle.
2. Install the mounting bracket bolts (2) securing the
fluid cooler (1) to the brace (V6&V8).

3. Install the mounting bracket bolts (3) securing the
fluid cooler (1) to the brace (Diesel Engine).
4. Reclamp the return and supply hoses to the power
steering fluid cooler (4).
5. Refill the power steering fluid (Refer to 19 -
STEERING/PUMP - STANDARD PROCEDURE).

HOSES - I.F.S.
REMOVAL
RETURN HOSE - GEAR TO COOLER
1. Drain and siphon the power steering system.
2. Raise and support the vehicle.
3. Disconnect the return hose at the cooler.
4. Disconnect the return hose (1) at the gear.
5. Remove the return hose from the routing clamp at
the fan shroud and then remove from the vehicle.
PRESSURE HOSE
1. Drain and siphon the power steering system.
2. Raise and support the vehicle.
3. Disconnect the pressure hose at the pump.
4. Disconnect the pressure hose (2) at the gear.
5. Remove the pressure hose from the vehicle.
RETURN HOSE - RESERVOIR TO COOLER
1. Drain and siphon the power steering system.
2. Disconnect the return hose at the reservoir.
3. Raise and support the vehicle.
4. Remove the return hose from the routing clamp at the fan shroud.
5. Disconnect the return hose at the cooler.
6. Remove the hose from the vehicle.