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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:Misfire or rough idleWarning light

P050D is written only in documents for GM vehicles in general. No record or document that names this vehicle states it, and it may not be a code this model year and engine set. The records are shown as their sources write them.

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3 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.

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ENGINE AND ENGINE COOLING1

  1. Manufacturer communication2000–2006 GMC YUKON XL ・ 2020-11-16(2 earlier editions of this document folded here)

    Misfire and DTC Code Diagnostic Information Notification

    1. 1Fault

      • The vehicle has a misfire with DTCs P0300 - P0308 and/or P050D set.

    2. 2Finding the cause

      Steps to confirm (in the document’s order)

      1. Establish whether the misfire can be felt; if it cannot, remove the accessory drive belt if possible and evaluate.
      2. Perform the fuel injector balance test and record the results.
      3. Check for a possible fuel quality issue, especially with a cold engine hard start and/or a misfire on all cylinders.
      4. Check the ignition supply voltage to the ignition module/coil assemblies and to the fuel injectors.
      5. Complete a compression test, static and running, and record the results.
      5 more points

    3. 3Correction

      This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D

    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to all brands, models and engines, 2000 - 2021.
    • Condition：The vehicle has a misfire with DTCs P0300 - P0308 and/or P050D set.
    • Confirm：Establish whether the misfire can be felt; if it cannot, remove the accessory drive belt if possible and evaluate.
    • Confirm：Perform the fuel injector balance test and record the results.
    • Confirm：Check for a possible fuel quality issue, especially with a cold engine hard start and/or a misfire on all cylinders.
    • Confirm：Check the ignition supply voltage to the ignition module/coil assemblies and to the fuel injectors.
    • Confirm：Complete a compression test, static and running, and record the results.
    • Confirm：Complete a cylinder leakage test if needed and record the results.
    • Confirm：Note whether the fuel trims are rich or lean.
    • Confirm：Inspect the spark plugs for anything abnormal.
    • Confirm：Swap components from the misfiring cylinder to known good locations.
    • Confirm：Confirm that a crankshaft variation learn has been completed.

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

    Remedy
    This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D

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