New to me 2005 3.0L with 102xxx miles.
At high ambient (>105 or so) the AC works for a while then drops out and attempts to cycle every few seconds. Cooling fans will not come on and the car overheats. If I turn the ignition off and let the car sit for 4 - 5 minutes the fans come on and if I restart all is well. At lower ambients say mid 80s things work as expected. Even at high ambients if I don't turn on the AC the fans cycle as expected and temp stays mormal (180 - 190) measured with IR thermometer at the coolant sensor. Recently replaced the coolant sensor. If I substitute a 100 ohm resistor for the coolant sensor while the fans are not working they do not activate. Any help much appreciated. For the record I am located in Tucson AZ where temps in excess of 100 often approaching 120 are the norm in the summer months.