EngineModel years 2002–2014Manufacturer
Oil leak after cold start from frozen PCV system (rear main seal)
GMC Yukon Models 2002 - 2014, V8 (among many listed V8 models)
FaultCrate・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
- Clean the area of the leak and clean and dry the PCV hoses.
- Fit oil fill cap 12589430 (vented) to prevent a recurrence.
In the records
- Oil Fill Cap: replaced 2
- PCV Hose: cleaned 2
Applies to
- The bulletin lists GMC Yukon Models 2002 - 2014.
See the evidence (1 documents, 5 passages)
| Document | Publisher | Date |
|---|---|---|
| [1]PIP3343F: Possible Engine Oil Leak Due To PCV Freeze-Up ↗ | ManufacturerGeneral Motors (published by NHTSA) | 2018-01-09 |
Applies toThe bulletin lists GMC Yukon Models 2002 - 2014.
Yukon Models 2002 - 2014— [1] Models
First signsOil 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.
oil leak shortly after a cold start when extremely low ambient temperatures are present (approximately below 10*F), or excessive short trip drive cycles.— [1] Condition
Why it happensThis is the result of a frozen PCV system and excessive crankcase pressure.
is noted, this is the result of a frozen PCV system and excessive crankcase pressure.— [1] Condition
RepairClean the area of the leak and clean and dry the PCV hoses.
clean the area of the oil leak, clean and dry the PCV hoses, and replace the oil fill cap with part number— [1] Recommendations
RepairFit oil fill cap 12589430 (vented) to prevent a recurrence.
12589430 (vented oil fill cap) to prevent a reoccurrence.— [1] Recommendations
Put together by FaultCrate from public records and technical documents. The cause and the repair are for the workshop to decide with the vehicle in front of it. Counts are records, not failure rates.
List the records (2 that can be opened)
Records whose recall number, document number or text matches. Each line says why it matched.
- Oil Leak at Cold Start in Low Ambient TemperatureManufacturer communication 2017-08-15・text contains "PCV"
- Oil Leak After Cold Start in Extremely Low TemperaturesManufacturer communication 2017-08-15・text contains "PCV"