my 07 f-250 diesel heater fan does not come on when it first starts , the guages show proper operating temp
but the fan will not come on until I drive amile or two it is -20 deg F here in alberta but thats when you really
need heat ! my ford dealer can not find a problem and says he has reprogramed the computer, but to me it seems like a sensor or a relay problem

thanks for any help I can get B.P.

 

The blower motor does not physically operate until you're up to operating temperature?

 

I have had multiple problems with my Superduty 6.4 diesel. So far I have had My thermostate replaced , a sensor ( PSE ) and it is in the shop again this week I only have 6773 miles on. I have poorFuel milage 10 MPG I was getting better milage in the beginning but 14.8 max.I don't haul big stuff just 4 wheelers and a 16 ft boat. I have lack of engine power the engine light goes on and I have had it in the shop 3 times for the same issues. Check engine light is on and lack of engine power & bad deiseling sound coming form the engine first time I had white smoke coming from my exhaust. I will be a ford lover till I die but I will gladly go back to the V-10 or a V-8.Everyone should check out the recalls I wish I would have waited a few months before I bought mine.[X(]