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GMC Yukon XL 2000–2006

GMC Yukon XLModel years 2000–2006

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The vehicle (where a record says)

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 accelerationWarning light

Record by record

5 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 did not fix it4
  • result not stated4

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 (5)

Known issuesReduced Engine Power from throttle body connector crimp, broken wire or grounds1

  1. 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.

ELECTRICAL SYSTEM2

  1. Manufacturer communication2005 GMC YUKON XL ・ 2018-05-21

    Throttle Position Sensor Cover Replacement

    1. 1Fault

      • The malfunction indicator lamp (MIL) is illuminated with a Reduced Engine Power message displayed.
      • A scan tool may show DTC P2135: Throttle Position (TP) Sensor 1-2 Correlation set as Current or in History.

    2. 2Finding the cause

      Possible causes

      • The condition may be caused by the difference between TP Sensor 1 and TP Sensor 2 exceeding a calibrated value for more than 2 seconds.

      Steps to confirm (in the document’s order)

      1. After installing the new cover, if the scan tool TP Sensor 1 and 2 Agree/Disagree parameter displays Disagree, replace the throttle body assembly.
      2. If DTC P1516, P2101 and/or P2176 are set, replace the throttle body.

    3. 3Correction

      Repair

      1. Clean the throttle body bore and throttle plate with a clean shop towel and GM Top Engine Cleaner, P/N 1052626 (in Canada, P/N 993026), or ACDelco Upper Engine and Fuel Injector Cleaner, P/N 88861803, or an equivalent product.
      2. Remove the old TP sensor cover from the throttle body: grasp the cover, carefully lift it up and separate it from the throttle body.
      3. Tighten the throttle body fasteners to 89 lb in (= 10.1 N·m) (the text prints the metric value as "10 Y").
      4. Reprogram the ECM using the Service Programming System (SPS) with the latest calibration available on TIS2WEB.
      5. Perform the Throttle Learn Reset Procedure.

      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.

      Parts

      • Part number 19259452, Throttle Position (TP) Sensor Cover, quantity 1.

      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.

      Caution

      • Do not replace the throttle body; follow the procedure in the bulletin instead.
      • If the throttle body is dropped at any time during the procedure, abort the procedure and replace it with a new throttle body assembly.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The Yukon entries are 2008-2011 GMC Canyon, Savana, Sierra, Sierra Denali and Yukon models (note: earlier Yukon model years are not listed).
    • Condition：The malfunction indicator lamp (MIL) is illuminated with a Reduced Engine Power message displayed.
    • Condition：A scan tool may show DTC P2135: Throttle Position (TP) Sensor 1-2 Correlation set as Current or in History.
    • Cause：The condition may be caused by the difference between TP Sensor 1 and TP Sensor 2 exceeding a calibrated value for more than 2 seconds.
    • Caution：Do not replace the throttle body; follow the procedure in the bulletin instead.
    • Repair：Clean the throttle body bore and throttle plate with a clean shop towel and GM Top Engine Cleaner, P/N 1052626 (in Canada, P/N 993026), or ACDelco Upper Engine and Fuel Injector Cleaner, P/N 88861803, or an equivalent product.
    • Repair：Remove the old TP sensor cover from the throttle body: grasp the cover, carefully lift it up and separate it from the throttle body.
    • Caution：If the throttle body is dropped at any time during the procedure, abort the procedure and replace it with a new throttle body assembly.
    • Confirm：After installing the new cover, if the scan tool TP Sensor 1 and 2 Agree/Disagree parameter displays Disagree, replace the throttle body assembly.
    • Confirm：If DTC P1516, P2101 and/or P2176 are set, replace the throttle body.
    • Repair：Tighten the throttle body fasteners to 89 lb in (= 10.1 N·m) (the text prints the metric value as "10 Y").
    • Repair：Reprogram the ECM using the Service Programming System (SPS) with the latest calibration available on TIS2WEB.
    • Repair：Perform the Throttle Learn Reset Procedure.
    • Parts：Part number 19259452, Throttle Position (TP) Sensor Cover, quantity 1.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This technical bulletin provides a procedure for replacing the throttle position sensor cover for concerns regarding a indicator lamp illuminated reduced power message displayed and DTC P2135 set.

  2. Manufacturer communication2005–2006 GMC YUKON XL 2500 ・ 2009-06-02

    Intermittent MIL/DTC P2138 with Reduced Engine Power

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Remedy
    GENERAL MOTORS: INTERMITTENT MIL/SES/ DTC P2138 WITH REDUCED ENGINE POWER (REPAIR INSTRUMENT PANEL (IP) TO BODY HARNESS CONNECTOR). 2005-08 GM PASSENGERS CARS/LIGHT DUTY TRUCKS (INCL. SATURNS). *PE UPDATED 11/5/10. *PE UPDATED 4/4/11. *PE UPDATED 2/3/16. *PE

ENGINE1

  1. Owner complaint2003 GMC YUKON DENALI XL ・ 2014-11-23

    Vehicle powers down without pattern, reduced engine power light on, steering and brakes hard

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Fault
    VEHICLE POWERS DOWN WITHOUT ANY PATTERN, RHYME OR REASON. (5 more)
    Remedy
    I HAVE REPLACED THE BATTERY, THROTTLE BODY ASSEMBLY AND WIRING HARNESS TWICE. (2 more)
    Consequence
    IT PUT ME IN THE DITCH. (1 more)

FUEL/PROPULSION SYSTEM1

  1. Owner complaint2003 GMC YUKON XL 1500 ・ 2015-09-23

    Error message displays on dash

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    THERE IS AN ERROR MESSAGE THAT DISPLAYS ON THE DASH FOR MYSELF AND THOUSANDS OF OTHERS WHO OWN GMC/CHEVY TRUCKS WITH THESE MOTORS.