Buick Enclave engine overheating and transmission heating issue due to leak in engine cylinder head on Buick Enclave

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Buick Enclave owners report experiencing engine overheating due to leaks in the engine cylinder head, which can lead to coolant loss and various serious issues if not addressed promptly. Common causes of engine overheating include coolant leaks, malfunctioning thermostats, faulty water pumps, or clogged radiators. Additionally, some owners have reported transmission heating problems linked to the same leak, which can cause overheating of transmission fluid and result in issues such as gear slippage or rough shifting. It is crucial for owners to seek professional assistance to diagnose and repair these leaks to prevent further damage and ensure the vehicle's optimal performance.

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