Hellcat 6.2 V8 Supercharged HEMI 717Hp Check Engine Light (Coolant Thermostat Problem)

The check engine light coming on in a vehicle like the Hellcat 6.2 V8 Supercharged HEMI 717Hp, specifically indicating a coolant thermostat problem, suggests there might be an issue with how your engine is managing its temperature. Here’s a breakdown of what this implies and potential steps to address it:
1. **Thermostat Function**: The thermostat in your engine is responsible for regulating the flow of coolant to maintain the engine's operating temperature. It stays closed to help the engine warm up quickly and opens to allow coolant flow, preventing overheating.
2. **Potential Problems**:
**Stuck Thermostat**: If the thermostat is stuck in the closed position, it can prevent coolant from flowing through the engine, causing it to overheat. Conversely, if it’s stuck open, it could cause the engine to run cooler than optimal, reducing efficiency.
**Faulty Temperature Sensor**: Sometimes, the issue may not be with the thermostat itself but with the sensor that reads engine temperature, falsely triggering the check engine light.
3. **Diagnosis and Repair**:
**Diagnostic Scan**: Use a diagnostic tool to read the specific trouble codes from your car's onboard diagnostic system (OBD-II). This will provide more detail on the exact nature of the issue.
**Inspect Thermostat**: A mechanic can perform a physical inspection to check if the thermostat is functioning properly or if it needs replacement.
**Coolant Levels**: Ensure that coolant levels are adequate and there are no leaks in the system.
**Sensor Check**: If the thermostat is functioning well, check the temperature sensors and wiring for faults.
4. **Consequences**: Ignoring the problem can lead to inefficient engine operation, decreased performance, and potential engine damage due to overheating or running too cool.
Taking your car to a certified mechanic to properly diagnose and fix the problem is advisable to ensure your vehicle runs optimally and to prevent further damage.