Replace the high-pressure power steering hose on a 2014 Ram 2500 with 6.7L Cummins diesel engine, including proper fluid refill and system bleeding.

Warnings

Tools required

Parts

• High-pressure power steering hose × 1 — Use OEM specification
• Power steering line O-rings × 2 — Use OEM specification

Fluids

• Mopar ATF+4 — 1.5 qt

Preparation

1. Park vehicle on level surface and engage parking brake
2. Place wheel chocks behind rear wheels
3. Allow engine to cool completely if recently operated
4. Open hood and locate power steering fluid reservoir
5. Use turkey baster or fluid evacuator to remove as much fluid as possible from reservoir to minimize spillage
6. Raise front of vehicle with floor jack and support on jack stands at frame rails
7. Remove driver side front wheel for improved access to hose routing

Procedure

1. 1

   Locate high-pressure power steering hose
   Trace the high-pressure hose from the power steering pump (located on driver side of engine) to the steering gear. The high-pressure hose is the smaller diameter hose with crimped or threaded fittings at both ends. Note the routing path and any retaining clips before removal.
2. 2

   Position drain pan
   Place drain pan beneath the steering gear connection point where the high-pressure hose attaches. Expect approximately 1-1.5 quarts of ATF+4 to drain from the system during hose removal.
   ⚠Power steering fluid will drain immediately upon disconnection. Ensure drain pan is properly positioned.
3. 3

   Disconnect hose from steering gear
   Using a flare nut wrench to prevent rounding the fitting, carefully loosen and remove the high-pressure hose from the steering gear inlet. Allow fluid to drain completely into pan. Remove and discard the old O-ring from the fitting.
   Torque spec

   Power Steering Line Fittings30 Nm (22 lb-ft)
4. 4

   Release hose from retaining clips
   Work along the hose routing path and release any retaining clips or brackets securing the hose to the frame or body. On this vehicle, clips are typically located along the frame rail. Note clip positions for reinstallation.
5. 5

   Disconnect hose from power steering pump
   Reposition drain pan beneath the power steering pump connection. Using a flare nut wrench, loosen and remove the high-pressure hose from the pump outlet. Allow remaining fluid to drain. Remove and discard the old O-ring from this fitting as well.
   Torque spec

   Power Steering Line Fittings30 Nm (22 lb-ft)
6. 6

   Remove old hose
   Carefully maneuver the old high-pressure hose out from the engine bay, noting its routing path through any brackets or channels. Compare the new hose to the old hose to verify correct replacement part.
7. 7

   Prepare new hose
   Inspect new high-pressure hose for any shipping damage. Install new O-rings (supplied with hose or purchased separately) onto both fitting ends. Lightly lubricate O-rings with clean ATF+4 fluid to prevent damage during installation.
8. 8

   Route new hose
   Route the new high-pressure hose through the engine bay following the exact path of the original hose. Ensure the hose does not contact any sharp edges, hot exhaust components, or moving parts. Do not twist or kink the hose during installation.
9. 9

   Connect hose to power steering pump
   Thread the fitting onto the power steering pump outlet by hand to ensure proper alignment. Once hand-tight, use a flare nut wrench and torque wrench to tighten to specification. Verify the O-ring remains properly seated.
   Torque spec

   Power Steering Line Fittings30 Nm (22 lb-ft)
10. 10

    Connect hose to steering gear
    Thread the fitting onto the steering gear inlet by hand first. Once hand-tight, use a flare nut wrench and torque wrench to tighten to specification. Ensure the O-ring is not pinched or damaged during installation.
    Torque spec

    Power Steering Line Fittings30 Nm (22 lb-ft)
11. 11

    Secure hose in retaining clips
    Install the hose into all retaining clips and brackets along its routing path. Ensure the hose is properly supported and has adequate clearance from all moving components and heat sources. Double-check that the hose is not twisted.
12. 12

    Reinstall wheel and lower vehicle
    Reinstall the driver side front wheel and hand-tighten lug nuts in a star pattern. Lower vehicle from jack stands and remove jack. Torque wheel lug nuts to specification in a star pattern.
    Torque spec

    Wheel Lug Nuts183 Nm (135 lb-ft)
13. 13

    Fill power steering system
    Remove power steering reservoir cap. Using a funnel, add fresh Mopar ATF+4 fluid to the reservoir until it reaches the MAX or HOT mark. Do not overfill. Keep extra fluid available for bleeding process.
14. 14

    Bleed power steering system
    With engine off, turn steering wheel slowly from lock to lock 10-15 times. Check fluid level and top off as needed. Start engine and allow to idle. Turn steering wheel slowly from lock to lock 5-10 times while engine idles. Check for leaks at all connections. Add fluid as necessary to maintain proper level. Continue until no air bubbles are visible in reservoir and fluid level stabilizes.
    ℹ️Turning the steering wheel too quickly can introduce additional air into the system. Use slow, deliberate movements.

Reassembly

1. Verify all hose connections are tight and properly torqued
2. Confirm hose routing provides clearance from exhaust, suspension, and steering components through full range of motion
3. Wipe down all components to remove spilled fluid and allow for leak detection
4. Verify power steering fluid level is at proper mark on reservoir with engine at operating temperature

Verification

• Start engine and verify no leaks at pump or steering gear connections
• Turn steering wheel through full range of motion and verify smooth operation without noise or binding
• Check for fluid leaks while turning steering wheel lock to lock with engine running
• Road test vehicle at low speed in safe area to verify proper power steering assist
• Recheck fluid level after test drive and top off if necessary
• Inspect hose routing one final time to confirm no contact with moving or hot components
• Verify no whining or groaning noises from power steering system indicating trapped air

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