The 2006 Chevy Equinox temperature sensor is situated on the rear of the motor compartment close to the water siphon. It seems to be a bronze fitting with a dark plastic external covering. You can see it connected,with a wrapped wire running from it to the vehicle. The sensor is answerable for ensuring that the vehicle is working inside the right temperature range. On the off chance that the vehicle is running hot,it can ultimately twist and break the head gasket. This is a multi-thousand dollar fix,so You are encouraged to keep the temp sensor working consistently. They are not difficult to supplant,and just expense a couple of dollars,20 and no more,so it isn't something special to disregard.