2005 6.0 Powerstroke Won't Start After Thermostat Change

13th Nov 2018

Q: I have a 2005 Ford F-250. I changed the thermostat and filled up the coolant and it won’t start. - Joe

A: There is nothing about a thermostat change that should prevent the truck from starting.  I would double check that the harness going to the FICM or down the to the cam sensor on the driver's side of the engine was disturbed in some way.