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Selected vehicle: 2006 · GMC Yukon XL Denali

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Source reference 10111783

Manufacturer communication — 2006 GMC YUKON DENALI XL

Fitment confirmedReporter type: ManufacturerFUEL SYSTEM, OTHER:DELIVERY:HOSES

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

PIP3343E ・ fault and correction ・ names this vehicle

Applies to

  • The model list names 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

  • It applies to vehicles equipped 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 (= -12.2 °C)), 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

  • If the leak is from the rear main seal, it 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

  • For warranty, labor operation 4065230 is Oil Filler Cap Replacement.

    the passage
    4065230 Oil Filler Cap Replacment

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、極低温の周囲温度が存在する場合に冷始動直後にオイル漏れが発生する車両に関する情報をテクニシャンに提供するものです。テクニシャンはオイル漏れエリアをクリーニングし、PCV ホースをクリーニングおよび乾燥させ、オイルフィラーキャップを部品番号 12589430 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
10111783
Received by source
2017-08-15
Incident date
Unknown

Open original text and sourceOpen the provider's page (external)

Manufacturer communication 10111783 — 2006 GMC YUKON DENALI XL | FaultCrate