PIP5257E
Service Bulletin Details
Public Details for: PIP5257E
This preliminary information communication provides information to the technician on the steps to diagnose and repair vehicles that may have oil mixed in with the engine coolant. Technician will need to inspect the oil cooler if equipped fo
- 2020 - 2019 - 2018 - 2017 - 2016 - 2015 - 2014 - 2013 - 2012 - 2011 - 2010 -
Models from 2020
Models from 2019
Models from 2018
Models from 2017
Models from 2016
Models from 2015
Models from 2014
Models from 2013
Models from 2012
Models from 2011
Models from 2010
| 2010 BUICK ENCLAVE |
| 2010 BUICK LACROSSE |
| 2010 CADILLAC CTS |
| 2010 CADILLAC SRX |
| 2010 CHEVROLET CAMARO |
| 2010 CHEVROLET EQUINOX |
| 2010 CHEVROLET TRAVERSE |
| 2010 GMC ACADIA |
| 2010 GMC TERRAIN |
Bulletin No.: PIP5257E Published date: 06/1/2020 Preliminary Information PIP5257E Cooling System Contaminated With Engine Oil Models Brand: Model: Model Years: VIN: from to Engine: Transmissions: Buick Enclave 2010 - 2020 All All 3.6 LFY, LLT All Buick LaCrosse 2010 - 2019 All All 3.0 LF1, LFW, 3.6 LFX, LGX, LLT All Buick Allure 2010 - 2016 All All 3.0 LF1, LFW, 3.6 LFX, LLT All Cadillac ATS 2013 - 2019 All All 3.6 LF4, LFX, LGX All Cadillac CT5 2020 All All 3.0 LGY All Cadillac CT6 2016 - 2020 All All 3.0 LGW, 3.6 LGX All Cadillac CTS 2010 - 2019 All All 3.0 LFW, 3.6 LF3, LFX, LGX, LLT All Cadillac SRX 2010 - 2016 All All 3.6 LFX, LLT All Cadillac XT5 2017 - 2020 All All 3.6 LGX All Cadillac XT6 2020 All All 3.6 LGX All Cadillac XTS 2013 - 2019 All All 3.6 LF3, LFX All Chevrolet Blazer 2019 - 2020 All All 3.6 LGX All Chevrolet Camaro 2010 - 2020 All All 3.6 LFX, LGX, LLT All Chevrolet Caprice PPV 2012 - 2017 All All 3.6 LFX All Chevrolet Captiva Sport 2011 - 2018 All All 3.0 LFW, 3.6 LFX All Chevrolet Colorado 2015 - 2020 All All 3.6 LFX, LGZ All Chevrolet Equinox 2010 - 2017 All All 3.0 LF1, LFW, 3.6 LLT, LFX All Chevrolet Impala 2012 - 2020 All All 3.6 LFX All Chevrolet Traverse 2010 - 2020 All All 3.6 LFY, LLT All GMC Acadia 2010 - 2020 All All 3.6 LGX, LLT All GMC Canyon 2015 - 2020 All All 3.6 LFX, LGZ All GMC Terrain 2010 - 2016 All All 3.0 LF1, LFW, 3.6 LLT, LFX All Supersession Statement This PI was superseded to add HFV6 Gen2 equipped models and MY vehicles. Please discard PIP5257C The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI. Condition / Concern A vehicle may be brought in for oil in the cooling system, Oil in the coolant overflow reservoir, or overheat due to coolant blown out of coolant reservoir or too thick to flow. You will normally find a very thick oil in coolant mix in the radiator and coolant overflow reservoir. This condition may be caused by a leakage from the main oil gallery to a water jacket through block porosity or thin wall casting. The average oil pressure is over 60 psi and the coolant pressure is 16 psi. Recommendations / Instructions If you encounter a vehicle with this concern, First, if equipped, test the oil cooler system for possible leaking into the coolant through the radiator. When checking the oil cooler make sure to use higher pressure (100 PSI) on the oil side of the cooler. If the oil cooler tests good, or the vehicle is not equipped with an oil cooler, then reference this PI and replace the engine as well as all rubber coolant hoses. Flush the radiator and heater core if possible or replace those as needed. Also if equipped flush the rear heater core and replace hoses as needed. Warranty Information For vehicles repaired under the Powertrain coverage, use the following labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information. Labor Operation 4067490 Description Engine Replacement Labor Time Use Published Labor Operation Time 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. © 2020 General Motors. All Rights Reserved.