Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 2007 explorer NO HEAT AND CLICKING NOISE???? › 2007 explorer NO HEAT AND CLICKING NOISE???? January 17, 2012 at 11:00 am #439481 RickParticipant It is almost certainly the blend door or its actuator. A friend of mine was quoted $600 to fix this because of labor to disassemble the dash. It can be done in about 45 minutes if you throw away the manual though.