You seem to have some confusion. The coolant and air temp sensors don't make any sounds of any kind. Being an 11 impala I'm assuming you're referring to the air door actuators inside the dash. If they are clicking then they need replaced due to the plastic gears inside them being stripped
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You seem to have some confusion. The coolant and air temp sensors don't make any sounds of any kind. Being an 11 impala I'm assuming you're referring to the air door actuators inside the dash. If they are clicking then they need replaced due to the plastic gears inside them being stripped