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NHTSA ID Number: 10083859
Manufacturer Communication Number: PIP5392
Summary
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN OF AN OIL LEAK IN THE OIL FILTER AREA.
10 Affected Products
Vehicles
BUICK | ENCLAVE | 2015-2016 |
| CHEVROLET | COLORADO | 2015-2016 |
| CHEVROLET | TRAVERSE | 2015-2016 |
| GMC | ACADIA | 2015-2016 |
| GMC | CANYON | 2015-2016 |
SEOCONTENT-START
Bulletin No.: PIP5392
Date: Apr-2016
| Subject: | Oil Leak From Left Side Of Engine |
| Models: | 2015 – 2016 Buick Enclave |
| 2015 – 2016 Chevrolet Colorado Traverse | |
| 2015 – 2016 GMC Acadia Canyon | |
| Equipped with HFV6 3.6L LLT or LFX engine |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern
One of the above vehicles may come into your dealership with an oil leak from the engine oil filter area.
Recommendation/Instructions
If you get a vehicle in with this concern, please follow these steps for accurate diagnosis and repair.
- Add engine oil dye to the system.
- Clean the entire area with brake cleaner and shop air.
- Run the engine for 20 minutes to get leak to show up.
- Using a black light, locate and identify the exact area of the leak.
- There are 4 possible causes for leaks in this area on these vehicles.
a) The oil filter seal or lock seam could be leaking which is away from the block on the oil filter adapter.
* Repair is to replace the filter and reevaluate.
b) The oil filter adapter gasket to block can be the leak. This will show up at the block.
* Repair is to replace the gasket between the block and oil filter adapter.
c) The block machined surface could be uneven or mis-machined. See pictures below.
Please verify the block is mis-machined by feel with a fingernail test on the block surface oil filter adapter pad
You should feel a definitive step on the otherwise flat surface of the block.
Some visible machining swirl is normal and will not cause a leak, do not replace the engine for these swirl marks.
* Repair is to replace the engine for this concern.
d) The oil filter adapter may have a defect leaking in the aluminum casting on an LFX engine with cartridge style filter. See picture below.
* Repair is to replace the oil filter adapter and gasket for this concern.
After any of the above repairs reevaluate for leaks per steps 1-4 above.
Warranty Information
For Vehicles Repaired Under Warranty Use Appropriate Labor Operation For Process Performed.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
SEOCONTENT-END
Bulletin No.: PIP5392
Date: Apr-2016
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Bulletin No.: PIP5392
Date: 26-Apr-2016
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- Protection for 10,000 miles between oil changes
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- 20,000 miles between oil changes***
- Approved and Licensed Specifications: Exceeds API SP/SN PLUS/SN/SM | ILSAC GF-6 | GM dexos1 Gen 3 | Meets engine test requirements of Chrysler MS 6395 | Meets Ford WSS-M2C946-B1 | Meets Ford WSS-M2C961-A1|
- Viscosity breakdown as measured in Kurt Orbahn test on 5W-30 grade |**As measured in Seq IX test under high load/torque conditions vs. API SP test limits | ***Or one year, whichever comes first
Last update on 2025-04-17 / Affiliate links / Images from Amazon Product Advertising API
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