rear air makes noise on 2005 Lincoln Navigator

sometimes when i turn on rear air it makes a sound like a solenoid clicking in and out. it blow cold air.trying diff. fan speed and does not affect the problem at all.

Asked by for the 2005 Lincoln Navigator
yes rear actuator is bad seek est and get repaired
1 more answer , 2 more comments
hello, it could your actuator in the rear of the truck that moves the blend door a common problem
i wonder if it could be that if most vents were close off it could cause a back press. on thge blower? thanks for your gonna open all vents and see what happens . like i said it only does it sometimes
yes that would i think put a load on it the actuator only has little plastic gears and it has to lift the blend door or force it down to adjust the temperature good luck if its a clicking sound it could have striped gear good luck