<strong>2.</strong> The instructions detail what factory components need to be removed, like the factory fan and shroud, so the Flex-A-Lite system can be installed. Removing these items requires working both above and below the engine bay. Flex-A-Lite notes that disconnecting the electric clutch on the factory fan may cause the vehicle's "check engine" light to illuminate after start-up. This happens because the vehicle's ECM is no longer receiving a signal from the electric clutch on the fan. Our "check engine" light didn't illuminate, but it did log a "soft code" into the vehicle's computer.