Power Steering Hose - High Pressure

This procedure covers the removal and replacement of the high-pressure power steering hose on a 2014-2018 Chevrolet Silverado 1500 with the 5.3L V8 L83 engine.

Warnings

Tools required

Parts

• High-pressure power steering hose × 1 — ACDelco 20832922 or equivalent
• Power steering pressure line O-rings × 2 — Use OEM specification

Fluids

• ACDelco Power Steering Fluid — 1 qt

Preparation

1. Park vehicle on level surface and apply parking brake
2. Place wheel chocks behind rear wheels
3. Allow engine to cool completely if recently operated
4. Remove the engine cover by pulling upward on the tabs
5. Use a turkey baster or fluid pump to remove as much power steering fluid as possible from the reservoir to minimize spillage

Procedure

1. 1

   Raise and support vehicle
   Raise the front of the vehicle using a floor jack at the designated front jacking point. Support the vehicle securely on jack stands positioned at the frame rails. Ensure the vehicle is stable before working underneath.
2. 2

   Access the power steering pump
   From the engine bay, locate the power steering pump on the driver's side of the engine. Identify the high-pressure hose connection at the pump outlet. The high-pressure hose is the smaller diameter line with threaded fittings, as opposed to the larger return hose with spring clamps.
3. 3

   Position drain pan
   Place a drain pan beneath the power steering pump and along the anticipated path of fluid drainage. Position additional shop towels around the work area to catch residual fluid.
4. 4

   Disconnect hose at power steering pump
   Using a flare nut wrench to prevent rounding the fitting, loosen and disconnect the high-pressure hose from the power steering pump outlet. Be prepared for fluid drainage. Allow the fitting to drain completely, then cap or plug the pump outlet to prevent contamination.
   ⚠Use a flare nut wrench, not a standard open-end wrench, to avoid damaging the soft brass or aluminum fittings.
5. 5

   Access steering rack connection from underneath
   Move to the underside of the vehicle. Locate where the high-pressure hose connects to the steering rack on the driver's side of the rack assembly. Clean the area around the fitting to prevent contamination during removal.
6. 6

   Disconnect hose at steering rack
   Using a flare nut wrench, loosen and remove the high-pressure hose from the steering rack inlet fitting. Allow all fluid to drain into the pan. Remove any mounting clips or brackets securing the hose along its routing path.
7. 7

   Remove old hose
   Carefully route the old high-pressure hose out from the engine bay, taking note of its exact path, any mounting points, and how it is routed to avoid contact with hot or moving components. Inspect the old hose for the cause of failure (abrasion, cracking, or fitting damage).
8. 8

   Prepare new hose
   Compare the new high-pressure hose to the old hose to verify correct length and fitting types. Install new O-rings on both fittings of the new hose, lightly lubricating them with clean power steering fluid to ease installation and prevent tearing.
9. 9

   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 the exhaust manifold, alternator, or any sharp edges. Reinstall any mounting clips or brackets to secure the hose in position.
10. 10

    Connect hose to steering rack
    Thread the fitting onto the steering rack inlet by hand to ensure proper alignment and prevent cross-threading. Once hand-tight, use a torque wrench to tighten to specification.
    Torque spec

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

    Connect hose to power steering pump
    Remove the cap or plug from the power steering pump outlet. Thread the high-pressure hose fitting onto the pump outlet by hand until snug. Use a torque wrench with a flare nut crow foot adapter to tighten to specification.
    ⚠When using a crow foot adapter, remember to compensate for the effective torque wrench length change if the adapter is not at 90 degrees to the wrench.
    Torque spec

    Power Steering Line Fittings30 Nm (22 lb-ft)
12. 12

    Lower vehicle
    Remove the jack stands and carefully lower the vehicle to the ground. Ensure all tools and drain pans are removed from under the vehicle before lowering.
13. 13

    Fill power steering system
    Fill the power steering reservoir with fresh ACDelco Power Steering Fluid to the cold fill level. Do not overfill. Start the engine and allow it to idle while checking the fluid level. Turn the steering wheel slowly from lock to lock several times to purge air from the system. Recheck and top off fluid level as needed.
14. 14

    Bleed air from system
    With the engine running at idle, continue turning the steering wheel slowly from full left to full right 10-15 times. Check for fluid aeration (foaming or bubbles) in the reservoir. If present, allow the vehicle to sit for several minutes with the engine off, then repeat the process. Add fluid as necessary to maintain proper level.
    ℹ️Do not hold the steering wheel against the stops for more than 5 seconds as this can overheat the power steering pump.

Reassembly

1. Reinstall the engine cover by aligning the tabs and pressing down firmly until it clicks into place
2. Wipe down all fittings and hose connections to check for leaks
3. Clean any spilled power steering fluid from the engine bay and undercarriage with soap and water

Verification

• Start the engine and verify smooth power steering operation with no unusual noises
• Turn the steering wheel from lock to lock while stationary and listen for whining, groaning, or cavitation sounds that indicate air in the system
• Check all hose connections at the pump and rack for leaks while the engine is running
• Verify the power steering fluid level is at the appropriate mark on the reservoir when hot
• Test drive the vehicle and verify normal steering assist function at various speeds
• After test drive, recheck fluid level and inspect all connections for signs of leakage

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