A raulty thermostat is being replaced Technician A says a stuck open moster engine's operating tem perature. Who is correct? ffect engine performance Technician B says the thermostat A. Technician A B. Technician B C. Both A and B D. Neither A or B

## Step 1<br />The thermostat in a car regulates the engine's operating temperature. It opens when the engine has warmed up to allow the coolant to flow through the engine and the radiator to cool it down. <br /><br />## Step 2<br />If the thermostat is stuck open, the engine will not reach its optimal operating temperature. This can lead to poor engine performance and increased fuel consumption.<br /><br />## Step 3<br />On the other hand, if the thermostat is stuck closed, the engine will overheat because the coolant cannot flow through the engine and the radiator to cool it down.<br /><br />## Step 4<br />Given the above explanations, both Technician A and Technician B are correct. Technician A is correct in stating that a stuck open thermostat can affect engine performance, while Technician B is correct in stating that a stuck closed thermostat can also affect engine performance.