Chevrolet Impala overheating issue while driving with temperature gauge reaching hot on Chevrolet Impala

Submitted by ashley.mc · Jun 23, 2025
Published by RepairPal

Problem overview

Some Chevrolet Impala owners report experiencing overheating issues while driving, with the temperature gauge reaching dangerously high levels. A common cause of this problem is a low coolant level, which can result from leaks in hoses or the radiator. Additionally, issues with the cooling system components, such as a malfunctioning water pump or thermostat, can contribute to overheating. Owners may receive warnings indicating that the engine is running hot, accompanied by the deactivation of the A/C and the cooling fans continuing to run even after the vehicle is turned off. The behavior of the temperature gauge, particularly if it enters the red zone, also signals a potential overheating issue. Furthermore, some owners have reported that faulty sensors or damaged wiring can trigger the "engine hot, AC off" warning message, indicating further complications. It is essential for owners to address these overheating concerns promptly to avoid serious engine damage and to maintain regular maintenance checks to monitor coolant levels and respond to warning messages effectively.

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Chevrolet Impala vehicles with this problem

1 model year affected
Average mileage: 161,000 miles
(161,000 - 161,000)

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