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GMC Yukon XL 2000–2006

GMC Yukon XLModel years 2000–2006

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1 conditions added

Common on this vehicle:Loss of engine power, no accelerationStalls or shuts offWarning light

Record by record

6 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
  • 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 (5)

Known issuesReduced Engine Power from throttle body connector crimp, broken wire or grounds3

  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 ・ 2010-09-04

    Stalling and engine power reduced light; code P2135

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

ELECTRICAL SYSTEM1

  1. Manufacturer communication2005 GMC YUKON XL ・ 2018-05-21(1 earlier editions of this document folded here)

    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.

ELECTRONIC STABILITY CONTROL (ESC)1

  1. Owner complaint2003 GMC YUKON XL DENALI ・ 2012-12-18

    Power loss at 65 mph on highway, reduced engine power message, codes cleared but symptom persists

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    DRIVING 65 MPH (= 104.6 km/h) ON THE HIGHWAY AND ALL OF A SUDDEN MY CAR LOSES POWER. (2 more)
    Outcome
    I GOT EVERYTHING DONE THAT WAS SUGGESTED THE CODES ARE GONE AND IT'S STILL HAPPENING!!

Showing 5 of the 6 you can open. Narrow the search to see the rest.

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.