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GMC Yukon 2000–2006

GMC YukonModel years 2000–2006

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2 conditions added

Common on this vehicle:Does not startStalls or shuts offWarning light

Possible causes

Smoke or fire, Security light0 records
Brakes
Electrical, wiring and power
Fuel system
Heating and air conditioning
0Hydro-boost brake assist and power steering share one hydraulic supply (four campaigns)0Positive battery cable contact with steering shaft universal joint (Denali) - Transport Canada 20010920Passlock theft deterrent: starts then stalls / no-start with security lamp0Conversion equipment (not the vehicle as built): Southern Comfort running board courtesy lights overheating - recall 03V-0940Aftermarket part (not the vehicle as built): Fram G3727 replacement fuel filter connector - recall 06E-0430Engine fuel rail crossover tube retainer screws may break (5.3L RPO L59) - recall 04V-3765.3L only0Engine fuel rail pulse damper retainer clip may fracture (8.1L V8) - recall 06V-289 / Transport Canada 20061958.1L only0HVAC blower motor resistor module / connector overheating

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 2000–2006・Smoke or fire, Security light

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.

What is needed

Parts and materials
  • Hydro-boost relief valve
  • Hydro-boost assembly (if it fails the functional test)
  • Hydraulic pump
  • Power steering hoses (those with a suspect date code)
  • Power Steering Gear 88965542, Union Fitting 26025709, Inlet O-ring Seal 26001594 (C/K 1500 series only)
  • Replacement pressure control valve PN 26095470 (available, if the customer's situation warrants, to provide additional steering assist)

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.

Labor time
Not stated
Special tools
Not stated
Scan tool
Not stated

Only what the technical documents state. "Not stated" does not mean not needed.

In the records

No record states work done for this cause.

See the evidence (1 technical documents, 0 records)

Passages of the technical documents

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

    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)

  • The valve O-ring seal may fracture, and steering effort may be slightly higher while braking or parking.

    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 replace the hydro-boost relief valve.

    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.

    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)

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Records

None among the records that can be opened now.

See all 0 records of this cause →

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.