Ram 1500 fluctuating overheating issue not resolved on Ram 1500

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

Problem overview

Some Ram 1500 owners report experiencing fluctuating overheating issues that remain unresolved, often attributed to several common causes such as coolant leaks, low coolant levels, broken radiator fans, failing water pumps, low oil, or faulty thermostats. These overheating problems can lead to engine performance issues, including stalling, misfiring, or loss of power, which should be addressed promptly. Even recently replaced thermostats may still contribute to fluctuating overheating, necessitating further inspection. If the overheating persists, it is advisable for owners to seek a professional mechanic's assessment of the cooling system to ensure proper coolant flow, air flow through the radiator, and overall system functionality.

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