Charge Air Cooler Coolant Temperature Sensor A Circuit Range/Performance

Common symptoms

What you'll notice

• Check and replace the Charge Air Cooler Coolant Temperature Sensor
• Inspect and repair any wiring issues or loose connections related to the sensor
• Clean or replace the Charge Air Cooler to ensure proper cooling
• Check and repair any issues with the engine coolant system, such as leaks or low coolant level

Common causes

Most likely first

1. Faulty charge air cooler coolant temperature sensor
2. Wiring or connector issues related to the charge air cooler coolant temperature sensor
3. Low coolant level in the charge air cooler system
4. Faulty engine coolant temperature sensor
5. Malfunctioning engine control module (ECM)

How to diagnose & fix

Work through it in order

1. Engine misfires or runs rough
2. Decreased engine performance
3. Overheating of the engine
4. Increased fuel consumption
5. Illumination of the check engine light