Scotty, my friend has a 2003 Lincoln LS with the V8 (made by Jaguar we are told). She took it in for a cooling system flush, paid over $350 for it (needed new thermostat and serpentine belt...stat was 93 bucks for the part), and now the cooling fan sounds like a jet trying to take off. What would cause that...cooling fan sensor gone bad? Seems quite a strange coincidence that this should happen immediately after leaving the shop, and in the winter in NW Florida! Didn't even get to 60 yesterday. Your thoughts?