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GMC Yukon 2000–2006

GMC YukonModel 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:Warning lightLoss of engine power, no accelerationSmoke or fireGauge or instrument faultLeakParking brakeStalls or shuts offWipers

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 back1

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 (6)

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

  1. Owner complaint2004 GMC YUKON DENALI ・ 2013-03-03

    Stability control disabled and reduced engine power warnings with 5 MPH speed limit on startup

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Fault
    THE "STABILITY CONTROL DISABLED" SENSOR COMES ON FOLLOWED BY "REDUCED ENGINE POWER" AND MY VEHICLE WON'T GO FASTER THAN 5MPH (= 8.05 km/h). (1 more)
    Remedy
    THEY REPLACED THE "CONNECTOR AT THE THROTTLE BODY" AND CHARGED ME $223.09. (1 more)
    Outcome
    THE ISSUE TEMPORARILY WENT AWAY.

ELECTRONIC STABILITY CONTROL (ESC)4

  1. Owner complaint2003 GMC YUKON DENALI ・ 2018-03-21

    Reduced engine power light and speed drops to 20 MPH with check engine codes P0120 and P2135

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Not stated

    Read the sentences of the record
    Outcome
    THE CONSUMER STATED THE VEHICLE WAS REPAIRED AND REQUESTED WITHDRAW THE COMPLAINT. *JS

  2. Owner complaint2003 GMC YUKON DENALI ・ 2013-11-11

    Service engine light and traction control on with engine power reduced and stability system disabled

    1. 1Fault

    2. 2Finding the cause

      I THINK GMC IS RESPONSIBLE FOR THIS AND MORE SIMILAR PROBLEMS. *TR

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    THE SERVICE ENGINE LIGHT AND TRACTION CONTROL TURN ON AND THE INFORMATION CENTER ON MY CLUSTER READS "ENGINE POWER REDUCED" AND "STABILITY SYSTEM DISABLE", THEN MY SPEED IS REDUCED AND ONLY RUNS BETWEEN TEN AND TWENTY MILES PER HOUR.
    Cause
    I THINK GMC IS RESPONSIBLE FOR THIS AND MORE SIMILAR PROBLEMS. *TR

  3. Owner complaint2004 GMC YUKON ・ 2014-09-05

    Check engine light and sudden loss of power shortly after purchase

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Fault
    DAYS AFTER PURCHASING THE VEHICLE, THE CHECK ENGINE LIGHT CAME ON, THE VEHICLE POWERED DOWN TAKING THE SPEED FROM 35MPH (= 56.3 km/h) OR ABOVE TO 5-10 MILES (= 8.05–16.1 km) MPH WITH OUT WARNING.

  4. Owner complaint2003 GMC YUKON ・ 2013-10-28

    Engine output drop message and traction control disabled while driving, other issues

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    WIFE DRIVING TRUCK TO WORK " REDUCED ENGINE POWER", MESSAGE CAME ON THE DASH, AND ALSO SAID TRACTION CONTROL WAS DISABLED. (5 more)

EQUIPMENT1

  1. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2017-08-15

    Service Engine Soon Lamp and P0442 Diagnostic Information

    1. 1Fault

      • The service engine soon lamp (MIL) is on with DTC P0442, but no leak can be verified with the system test in the service information.

    2. 2Finding the cause

      Steps to confirm (in the document’s order)

      1. Connect the scan tool and command the EVAP system closed.
      2. Start the engine and watch the fuel tank pressure sensor value for about two minutes.
      3. If the tank pressure sensor value changes (shows vacuum), remove the purge solenoid and pressurize its fuel tank side with the GE 41413-A / J 41413-A tester.
      4. If the sensor value does not change, install the CH-48096 adaptor between the purge line from the canister and the purge solenoid; use no other adaptor or pressurization method.
      5. With the EVAP system closed, pressurize through the CH 48096 adaptor and watch the pressure/vacuum gauge for at least 5 minutes until the system is fully stable, then add smoke.
      2 more points

    3. 3Correction

      Repair

      • Add smoke and let the pressure stabilize; if smoke passes through the purge solenoid, replace the purge solenoid.

      Caution

      • After verifying P0442, do not disturb any fuel system component before testing.
      • EVAP test pressure must not exceed 13 in H2O (0.5 PSI (= 3.45 kPa)); more can make components perform inaccurately and lead to misdiagnosis.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2015 and prior passenger cars and trucks.
    • Condition：The service engine soon lamp (MIL) is on with DTC P0442, but no leak can be verified with the system test in the service information.
    • Caution：After verifying P0442, do not disturb any fuel system component before testing.
    • Confirm：Connect the scan tool and command the EVAP system closed.
    • Confirm：Start the engine and watch the fuel tank pressure sensor value for about two minutes.
    • Confirm：If the tank pressure sensor value changes (shows vacuum), remove the purge solenoid and pressurize its fuel tank side with the GE 41413-A / J 41413-A tester.
    • Repair：Add smoke and let the pressure stabilize; if smoke passes through the purge solenoid, replace the purge solenoid.
    • Confirm：If the sensor value does not change, install the CH-48096 adaptor between the purge line from the canister and the purge solenoid; use no other adaptor or pressurization method.
    • Confirm：With the EVAP system closed, pressurize through the CH 48096 adaptor and watch the pressure/vacuum gauge for at least 5 minutes until the system is fully stable, then add smoke.
    • Confirm：Check the canister vent solenoid filter or fresh-air line for smoke; an intermittent vent solenoid fault may show up when the vent solenoid is cycled and the test repeated.
    • Confirm：If smoke finds nothing, the leak may exist only under vacuum: use the scan tool Purge/Seal function to pull a vacuum on the EVAP system and watch the FTP sensor parameter for vacuum decay.
    • Caution：EVAP test pressure must not exceed 13 in H2O (0.5 PSI (= 3.45 kPa)); more can make components perform inaccurately and lead to misdiagnosis.

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

    Remedy
    This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0442. Technician will need to review Techlink article from May 2013 titled "Using the Evaporative Emissions System Tester" Technician will need to follow these steps to help diagnose the issue. First after the P0442 has been verified do not disturb any of the fuel system components. The technician now can use the scan tool to close the Evaporative Emissions System. If possible change the tank pressure sensor units from inch_H2O to milimeter_Hg for better resolution. Now the vehicle can be stared to monitor the tank pressure sensor output value for approximately two minutes. If the tank pressure sensor value does change, pressurize the fuel tank side of the purge solenoid with the GE 41413-A / J 41413-A and the necessary adaptors. Now add smoke and allow pressure to stabilize for 2 minutes. If smoke is allowed to pass through the purge solenoid, replace the purge solenoid. If the tank pressure sensor value does not change, then install CH-48096 adaptor between the purge line from the canister and the purge solenoid. With the Evaporative Emissions System closed, pressurize the system through the CH-48096 adaptor and allow the system to completely stabilize, by observing the Press / Vac Gauge for a minimum of 5 minutes. Now add smoke to the system with GE 41413-A / J 41413-A after system stabilization. Now inspect the purge solenoid, engine side, fuel cap, canister vent solenoid filter and any line quick connects. When the leak is unable to be located, test under a vacuum condition. his type of leak may be detected by using the scan tool Purge/Seal function to create a vacuum in the Evaporative Emissions System and then observe the FTP sensor parameter for vacuum decay.