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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:Warning lightLeakNoiseCorrosion or rustParking brakeMisfire or rough idleStalls or shuts offGauge or instrument fault

Known issues of this vehicle

Problems described in the manufacturer’s technical documents, government investigations and trade technical sources. Every statement stands on a quoted passage of its source and is shown only after passing an automatic audit.

Issues that answer this search (6)

Brakes15 cards, 251 records

13 more

Instruments and lighting4 cards, 151 records

See the 4

Electrical, wiring and power28 cards, 46 records

See the 28

Engine16 cards, 35 records

15 more

Body, doors and interior19 cards, 31 records

See the 19

Fuel system10 cards, 25 records

8 more

Steering4 cards, 19 records

See the 4

Heating and air conditioning11 cards, 18 records

See the 11

Transmission and driveline13 cards, 10 records

12 more

Suspension, wheels and tires6 cards, 8 records

See the 6

Airbags and seat belts8 cards, 7 records

See the 8

Exhaust and emissions2 cards, 5 records

See the 2

Audio and telematics4 cards, 5 records

See the 4

Other2 cards, 1 records

See the 2

Cooling1 cards, 0 records

See the 1

States a check or a repairStates symptoms or cautions onlyAnswers the search in handA bar is as long as the records under the card (not how often the fault occurs). Titles are shortened; the card itself gives the full one.

Read the cards as text (6)

  • EngineModel years 2001–2006Manufacturer

    Castech cylinder head porosity crack (gradual coolant loss)

    Why it happens：A very low percentage of cylinder heads with an embossed Castech logo may develop a porosity crack in a very specific area.

    Caution：If the heads are not Castech castings, follow normal diagnostic procedures to find the cause of the coolant loss.

    Manufacturer communication 1Open the card →

  • Fuel systemModel years 2000–2005GovernmentTrade technical source

    Aftermarket part (not the vehicle as built): Fram G3727 replacement fuel filter connector - recall 06E-043

    Why it happens：The connector on the fuel filter was not manufactured to Honeywell's specification.

    • If left：This may cause an inadequate seal at the connection, potentially leading to a fuel leak.
    • If left：In the presence of an ignition source, a fire could occur.

    Caution：The recall pertains only to aftermarket Fram fuel filters and has no relation to original equipment on the listed vehicles.

    No record matchesOpen the card →

  • Fuel systemModel years 2000–2001ManufacturerGovernment

    Fuel module reservoir assembly: fuel pump wire connectors may overheat - recall 05V-155

    Why it happens：The fuel module reservoir assemblies contain fuel pump wire connectors that may overheat under certain operating conditions.

    • If left：If the ignition circuit wire is exposed, the fuel pump fuse blows, disabling the pump and causing a stall or no-start.
    • If left：Enough heat at the pass-through connector may make a hole in it, which may light the 'Service Engine Soon' light during the emission system diagnostic routine.
    • If left：Fuel vapor and in some cases liquid fuel may leak from the tank through the hole in the connector body.
    • If left：Fuel leakage in the presence of an ignition source could result in a fire.
    • If left：If the ignition circuit or ground wire is exposed and shorts to the fuel level sender card wires, fuel level readings may be inaccurate.
    • If left：Engine stall can occur if bare wire exposed by melted insulation shorts against a ground or ground wire and the fuel pump relay fuse blows, or if the vehicle runs out of fuel because a short between the fuel pump wiring and the level sensor wiring makes the fuel gauge read inaccurately.

    Caution：After removing the connector, be sure the O-ring does not remain in the cover.

    Owner complaint 4Recall 1Manufacturer communication 1Open the card →

  • Transmission and drivelineModel years 1998–2007Repair business

    Transfer case pump rub (hole worn through rear case half)

    Why it happens：The magnesium case is softer than the aluminum pump, and pump movement in normal operation eventually wears a hole in the rear case half.

    • If left：The transfer case holds only two quarts, so fluid loss can quickly become catastrophic for the internal components.
    • If left：Pump rub is very often fatal to transfer cases because the vehicle is often driven thousands of miles before problems show.

    No record matchesOpen the card →

  • BrakesModel years 2000–2006Government

    Brake pipe (brake line) corrosion and rupture

    Why it happens：The pipes' steel-copper construction is vulnerable to galvanic corrosion if exposed to the environment.

    • If left：Corroded brake lines may rupture during a brake application, reducing brake effectiveness.
    • If left：The worst case is failure of the front circuit (rear-only braking) with a lightly loaded vehicle.
    • If left：GM stated that the brake system is split front/rear and that, should a brake pipe suddenly fail, the vehicle would be capable of stopping with the pressure supplied by the remaining circuit.
    • If left：Most of the failures reported to ODI occurred in vehicles with more than 10 years in service.

    Caution：Analysis of repair records indicates that consumers often elect to repair only the failed circuit.

    Owner complaint 135Open the card →

  • BrakesModel years 2000–2006ManufacturerGovernment

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

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

    • If left：The valve O-ring seal may fracture, and steering effort may be slightly higher while braking or parking.
    • If left：The loss of fluid would increase steering and braking effort, and a crash may occur without prior warning.
    • If left：A hydraulic pump driveshaft can fracture, causing immediate loss of power steering assist.
    • If left：On hydro-boost vehicles the same failure removes brake power assist once the reserve pressure is used up.
    • If left：Power steering assist would be lost and steering effort would rise.
    • If left：On hydro-boost vehicles the hose failure could also remove power brake assist.
    • If left：Power steering fluid sprayed onto hot engine parts could cause an engine compartment fire.
    • If left：The Hydro-Boost unit includes a pneumatic accumulator that serves as a reserve and provides a transition between power assisted and manual braking when pressure supply is lost. The number of accumulator-assisted stops varies with previous steering and braking inputs.
    • If left：Loss of boost with a depleted reserve sharply increases brake pedal effort: a driver used to applying 20 lbs for a moderate 0.3 g deceleration may have to apply 130 lbs or more.
    • If left：In the steering test, the test vehicle required 45 in-lb (= 5.08 N·m) with the system intact and 300 in-lb (= 33.9 N·m) with the system failed.

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

    Owner complaint 10Recall 4Manufacturer communication 5Open the card →

Other known issues (137)

Manufacturer’s documents that state this condition: 7

Documents whose own text states the code, display, symptom or keyword searched for, including those addressed to GM vehicles in general. Open one and read “Applies to” to see whether it fits.

3 records that touch this generation only at its boundary (model year 2000); not counted for this vehicle

In model year 2000 the previous generation was also sold under the same name. These records state no other model year of this generation, and either state years outside it or call the vehicle the old style: they do not say which generation they mean, so they are not counted among the causes or under the cards. The ground for the shared year:

01-03-08-001; Revised Fastener Tightening Specifications; 2000 Chevrolet and GMC C/K Pickup and Utility Models (Classic), 2000 Cadillac Escalade
GM TechLink, March 2001 (https://www.centerlearning.com/tmswebtree/techlink/images/issues/arcv_pdf/3_01_e.pdf)