Re: Ford XF Cooling System problem
If it's only getting hot on the freeway, that rules out the fan. Try replacing the thermostat. I ran an 82 degree in my turbo 4.1 and it worked well. Did you check that the air-con condensor was not blocked when you did the radiator? Is the radiator a good brand(Natrad or similar) or is it a cheap Chinese import? Make sure the cap is holding pressure. If everything here checks out okay, if it's an old water pump, the impeller blades might be stuffed. Good luck.