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Selected vehicle: 2006 · GMC Yukon XL Denali

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Source reference 10111875

Manufacturer communication — 2006 GMC YUKON DENALI XL

Fitment confirmedReporter type: ManufacturerENGINE

Relation to the target vehicle

  • The source's vehicle field includes the trim.
Model year
Match 2006 — Source vehicle field
Model
Match YUKON DENALI XL — Source vehicle field
Trim
Match Denali — Source vehicle field

What the manufacturer’s document says

PIP3343D ・ fault and correction ・ names this vehicle

Applies to

  • Applies to 2002-2014 GMC Yukon, Yukon XL, Yukon Denali and Yukon XL Denali.

    the passage
    2002-2014 GMC Yukon, Yukon XL, Yukon Denali, Yukon XL Denali

  • Applies to vehicles with a V-8 gas engine except L83, L86 and LV3.

    the passage
    Equipped with a V-8 Gas Engine except L83, L86, and LV3

Fault

  • An oil leak may appear shortly after a cold start in extremely low ambient temperatures (approximately below 10*F) or with excessive short trip drive cycles.

    the passage
    Some customers may complain of an oil leak shortly after a cold start when extremely low ambient temperatures are present (approximately below 10*F), or excessive short trip drive cycles.

Finding the cause

Possible causes

  • An oil leak from the rear main seal is the result of a frozen PCV system and excessive crankcase pressure.

    the passage
    If an oil leak from the rear main seal is noted, this is the result of a frozen PCV system and excessive crankcase pressure.

Correction

Repair

  • Clean the area of the oil leak, clean and dry the PCV hoses, and replace the oil fill cap with part number 12589430 (vented oil fill cap) to prevent a reoccurrence.

    the passage
    If this concern is encountered, clean the area of the oil leak, clean and dry the PCV hoses, and replace the oil fill cap with part number 12589430 (vented oil fill cap) to prevent a reoccurrence.

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

  • Oil fill cap part number 12589430 (vented oil fill cap).

    the passage
    replace the oil fill cap with part number 12589430 (vented oil fill cap)

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.

Compiled by reading the full text of the document; each point stands on the passage shown. Check the document itself, linked below, before working on a vehicle.

Stated content

  1. Communication summary

    本予備情報通知は、極めて低い外気温が存在する場合に冷始動直後のオイル漏れを有する車両に関する情報を技術者に提供するものです。技術者はオイル漏れの箇所を清掃し、PCVホースを清掃・乾燥させ、オイルフィラーキャップを部品番号12589430のものと交換する必要があります。 Machine translation (unreviewed)

    This Preliminary Information communication provides information to the technician about vehicles that have an oil leak shortly after a cold start when extremely low ambient temperatures are present. Technician will need to clean the area of the oil leak, clean and dry the PCV hoses, and replace the oil fill cap with part number 12589430.
    Go to this passage in the original

Source

Source
NHTSA Manufacturer Communications
Source reference
10111875
Received by source
2017-08-15
Incident date
Unknown

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