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GMC Yukon XL 2000–2006

GMC Yukon XLModel years 2000–2006

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2 conditions added

Common on this vehicle:LeakNoiseMisfire or rough idleVibration or shudder

Possible causes

Steering, 200614 records
Brakes
Steering
4Hydro-boost brake assist and power steering share one hydraulic supply (four campaigns)1Power steering pump whine between idle and 2000 rpm1Steering intermediate shaft clunk1Pitman Arm Shaft Seal

The documents say what to doOnly records name itThe size of a node, the width of a link and the numbers are records matching this search, not likelihoods.

FaultCrate・GMC Yukon XL 2000–2006・Steering, 2006

Candidate cause (the documents say what to do)

Hydro-boost brake assist and power steering share one hydraulic supply (four campaigns)

Some vehicles were built with an out-of-specification hydro-boost housing relief valve bore.

The hydraulic brake booster pressure accumulator may crack and separate from the hydro-boost assembly during normal operating conditions.

What to do

  1. Perform the "Power Steering System Test" found in SI and make any necessary repairs based on system diagnosis.
  2. To tell whether a 670 gear box is fitted, inspect the mounting bolts that attach the stub shaft housing; a 670 gear box has only 3 mounting bolts.
  3. The PI document instructed technicians to diagnose the vehicle using the Power Steering Test Procedures if an owner complained about difficulty steering during "parking lot type maneuvers"; if the vehicle passed this test, no work was required, as GM viewed this as a normal phenomenon.
  4. Dealers replace the hydro-boost relief valve.
  5. Dealers test the hydro-boost assembly for functional operation and replace it if it fails.
  6. Dealers replace the hydraulic pump.
Read the remaining 7 steps

Caution: An inoperative pump raises steering and braking effort but does not completely remove the ability to steer or slow the vehicle.

Part numbers printed in the document

The numbers are as the document prints them. The name and the replacing number are what the pages of GMPartsGiant, a reseller of genuine parts and not GM, state. Aftermarket equivalents are not checked here (the links only search by number). Confirm the fit for the vehicle (VIN) before ordering.

In the records

  • Line: replaced 3
  • Power Steering Pump: replaced 3
See the evidence (2 technical documents, 4 records)

Passages of the technical documents

  • SOME OF THESE VEHICLES WERE PRODUCED WITH AN OUT-OF-SPECIFICATION BRAKE HYDRO-BOOST HOUSING RELIEF VALVE BORE.

    NHTSA (recall summary text as published by NHTSA)

  • CONSEQUENTLY, THE VALVE O-RING SEAL MAY FRACTURE. STEERING EFFORTS MAY BE SLIGHTLY INCREASED WHILE BRAKING OR PARKING.

    NHTSA (recall summary text as published by NHTSA)

  • DEALERS ARE TO REPLACE THE HYDRO-BOOST RELIEF VALVE.

    NHTSA (recall summary text as published by NHTSA)

  • THE HYDRAULIC BRAKE BOOSTER PRESSURE ACCUMULATOR MAY CRACK AND SEPARATE FROM THE HYDRO-BOOST ASSEMBLY DURING NORMAL OPERATING CONDITIONS.

    NHTSA (recall summary text as published by NHTSA)

Read every statement and its source →

Manufacturer’s documents

A cause or a result a complaint states is the owner’s view or what a dealer told them, not an established fact.

Put together by FaultCrate from public records and technical documents. The cause and the repair are for the workshop to decide with the vehicle in front of it. Counts are records, not failure rates.