Engine and engine cooling
Chevrolet technical service bulletin PIP5674A for 2019-2020 Chevrolet Impala, 2019-2023 Chevrolet Traverse and 2019-2023 Buick Enclave and others.
- Bulletin number
- PIP5674A
- Component
- Engine and engine cooling
- Summary
- This Preliminary information communicates a concern with porosity in the cylinder head casting causing coolant to get into the oil and steps to find and repair it.
Owners of these vehicles have filed 260 complaints in the engine category.
Vehicles covered
- Chevrolet Impala 2019-2020 20192020
- Chevrolet Traverse 2019-2023 20192020202120222023
- Buick Enclave 2019-2023 20192020202120222023
- Cadillac XTS 2019 2019
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