Take control of the operating temperature of your 6.0L Ford Powerstroke with this Fan Clutch Accelerator Switch from Driven Diesel. When enabled, the Fan Clutch Accelerator will cause your ECM to think that your Engine Coolant Temperature has increased, thereby causing your ECM to command more fan speed from the clutch. When disabled, the ECM will see the correct temperature from the coolant temperature sensor, and operate the fan normally.
This product is designed to be used "AS NEEDED", leaving it enabled all the time will result in running the engine fan excessively, causing more engine noise, lower fuel economy and a reduction in power. If you have experienced situations where your truck and load are causing coolant and oil temperatures to rise, but you aren't hearing your fan engage to aid in cooling, this is your answer.