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GMC Yukon 2000–2006

GMC YukonModel years 2000–2006

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2 conditions added

Common on this vehicle:Gauge or instrument faultWarning lightLeakStalls or shuts offHard start or long crankDoes not startLoss of engine power, no accelerationSmoke or fire

Possible causes

The documents say what to doOnly records name itThe size of a node, the width of a link and the numbers are records matching this search, not likelihoods.

Candidate cause (the documents say what to do)

Oil leak after cold start from frozen PCV system (rear main seal)

Oil leak can occur shortly after a cold start in extremely low ambient temperatures (approximately below 10°F (= -12.2 °C)) or with excessive short-trip driving.

This is the result of a frozen PCV system and excessive crankcase pressure.

What to do

  1. Clean the area of the leak and clean and dry the PCV hoses.
  2. Fit oil fill cap 12589430 (vented) to prevent a recurrence.

In the records

  • Oil Fill Cap: replaced 2
  • PCV Hose: cleaned 2
See the evidence (2 technical documents, 2 records)

Passages of the technical documents

  • Yukon Models 2002 - 2014

    General Motors (published by NHTSA) 2018-01-09

  • oil leak shortly after a cold start when extremely low ambient temperatures are present (approximately below 10*F), or excessive short trip drive cycles.

    General Motors (published by NHTSA) 2018-01-09

  • is noted, this is the result of a frozen PCV system and excessive crankcase pressure.

    General Motors (published by NHTSA) 2018-01-09

  • clean the area of the oil leak, clean and dry the PCV hoses, and replace the oil fill cap with part number

    General Motors (published by NHTSA) 2018-01-09

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Manufacturer’s documents

Records

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A cause or a result a complaint states is the owner’s view or what a dealer told them, not an established fact.