Folks,
I own a 2005 Explorer XLT. It is a V-8, FWD, with 40K miles.
The problem I have is: when the temperature control knob is in the full cold position, everything is fine. But as I turn the selector to warm and then hot, I get a banging noise coming from the firewall (I think). I'm not at all sure how the temperature selector is supposed to work, my guess is that there is a motor that diverts hot anti-freeze to and from the heater radiator.
Also, even with the banging noise, the temperature selector seems to be working in the cold, warm and hot positions.
Any thoughts or ideas on what is causing this banging and what the fix is?
Thanks in advance.
Al, Poughkeepsie, NY