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GMC Yukon XL 2000–2006

GMC Yukon XLModel years 2000–2006

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A record is under an engine, a drive or a series only where it says so: the characters of the vehicle identification number filed with a complaint, its text, or what its document says it applies to. A record that does not say is kept as "not stated". The filed numbers and the documents do not tell 4WD from AWD.

Common on this vehicle:Loss of engine power, no accelerationStalls or shuts offWarning lightReduced brakingGauge or instrument fault

issueReduced Engine Power from throttle body connector crimp, broken wire or groundsRemove

Record by record

7 records state a cause or a remedy. Each record is shown as short labels in the order fault → finding the cause → correction. Press a label to narrow to the records that state it.

Symptom

Component named as the cause

Work done

How it is said to have ended

  • says it held for a while3
  • says it came back2
  • says it did not fix it11
  • result not stated5

A ribbon is as wide as the records that state both of its ends (only the commonest are drawn). A record that names several symptoms or components runs through each. Orange is records that say the fault came back or was not fixed. Results come from owners’ reports only; one that does not say is “result not stated”. None of this is a likelihood of a cause or a rate at which work succeeds.

Read the records one by one (7)

Known issuesReduced Engine Power from throttle body connector crimp, broken wire or grounds7

  1. Owner complaint2003 GMC YUKON XL 2500 ・ 2010-03-10

    Service engine light and reduced power mode episodes since November 2008

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Fault
    SINCE NOVEMBER 2008, MY 2003 GMC YUKON XL 2500 HAS HAD EPISODES WHERE THE SERVICE ENGINE LIGHT COMES ON AND THE ENGINE GOES INTO REDUCED POWER MODE.
    Remedy
    I HAVE TAKEN IT TO NUMEROUS GM DEALERS TO FIX THE PROBLEM, AND THEY HAVE REPLACED THE THROTTLE BODY ASSEMBLE AND WIRING HARNESS MULTIPLE TIMES AND THE PROBLEM KEEPS RECURRING.
    Consequence
    THERE HAVE BEEN MANY CLOSE EPISODES WHERE WE WERE ALMOST IN AN ACCIDENT.

  2. Owner complaint2006 GMC YUKON XL ・ 2020-07-27

    Check engine codes returning repeatedly; reduced power mode

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Fault
    I WAS DRIVING AND MY CAR WENT INTO REDUCED POWER MODE.
    Remedy
    I'VE SINCE CLEANED THE MASS AIR FLOW SENSOR AND THROTTLE BODY. (1 more)
    Inspection
    I'VE TAKEN IT TO A MECHANIC WHO SAID THAT I DID EVERY STEP THEY'VE WOULD HAVE DONE TO TROUBLESHOOT THIS PROBLEM.

  3. Owner complaint2003 GMC YUKON XL 1500 ・ 2015-09-28

    Check engine light and reduced power warning with complete loss of acceleration, braking and steering

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Fault
    WHILE TRAVELING TO WORK MY VEHICLES CHECK ENGINE LIGHT CAME ON AND THE REDUCED POWER WARNING CAME ON AT WHICH TIME I HAD COMPLETE LOSS OF ACCELERATION, COMPLETE LOSS OF BRAKING, AND COMPLETE LOSS OF STEERING POWER. (1 more)
    Remedy
    I HAVE ALREADY REPLACED THE THROTTLE HOUSING AND HARNESS COMPONENTS, ACCELERATION PEDAL SENSOR AND YET THE ISSUE CONTINUES, SOMEONE IS GOING TO ( DIE ) BECAUSE OF GMC'S LACK OF CONCERN AND RESPONSIBILITY TO OWNERS OF THEIR PRODUCTS.

  4. Owner complaint2003 GMC YUKON XL 1500 ・ 2015-02-23

    Reduced engine power and service engine soon signals appearing repeatedly since September 2014

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Fault
    "REDUCED ENGINE POWER" AND SERVICE ENGINE SOON SIGNALS APPEAR ON VEHICLE PANEL CAUSING ENGINE POWER TO BE REDUCED IN A MATTER OF SECONDS.
    Remedy
    THROTTLE BODY SENSOR REPLACED TWICE, THROTTLE BODY HARNESS REPLACED, ALL WIRES, AND SENSORS HAVE BEEN CLEANED AND THOROUGHLY INSPECTED.

  5. Owner complaint2004 GMC YUKON XL ・ 2011-09-09

    Reduced power indicator comes on intermittently, vehicle limited to 30 MPH

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Fault
    REDUCED POWER INDICATOR ON INFORMATION CENTER COMES ON INTERMITTENTLY, WHEN IT DOES, VEHICLES GOES INTO DEFAULT MODE & CAN GO MAX 30 MPH (= 48.3 km/h) (VERY DANGEROUS, WAS ALMOST REAR ENDED). (1 more)
    Remedy
    HAVE HAD IT @ SEVERAL SHOPS & REPLACED THROTTLE SENSOR, TRACED WIRES, REPLACED GROUNDS, INSPECTED HARNESS BUT DOESN'T SEEM TO HELP.

  6. Owner complaint2003 GMC YUKON XL 1500 ・ 2015-09-15

    Reduced engine power display and accelerator loss

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Fault
    I KEEP HAVING THE DISPLAY SAY "REDUCED ENGINE POWER". (2 more)

  7. Owner complaint2003 GMC YUKON XL ・ 2010-09-04

    Stalling and engine power reduced light; code P2135

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

1 owner complaints have no classified sentences yet, so their causes and repairs are not picked out. Their text is in the list of records.