[Mustang_Driver]

My friend has a 2003 concorde with a 3.5l motor and a few weeks ago the check engine light came on with a cam position sensor code but they drove it anyways (put a Used sensor in from the wrecker), a week later after that the fans always seemed to be running on HI and the gauge about halfway(so his wife says) he took it in and had a new thermostat put in and fluids changed (anti-freeze, oil) and the problem still exists i told him that it could be a coolant temp sensor gone bad but he doesn't want to listen to me but his wife is getting mad because her car is just sitting and is afraid to drive it due to the temp gauge sitting higher than normal. i told her if a mechanic flushed everything and test drove it and it didn't overheat on him it could very well be the bad temp sensor and that i would ask here and see if anyone else had this issue. They have spent 400 on it in the past week to try and correct the issue but if it is just a bad sensor i would help them change it out and hopefully get it back up and driving again.

Is there anything else i should check for them

car when cold the fans are off
car driven 30 mins the fans on high and won't cut out at all as the gauge is high