Originally Posted by northernfordowner

Hi, I recently bought a 2001 f150 5.4l 4x4 with 165000 km on it. It runs nice, no codes, but I have noticed that it takes upwards of 30 minutes for the truck to start blowing warm air.

it's -25C right now, so warming the truck up before leaving for work is a must.

After driving for about 5 minutes the engine temperature is in normal operating range, but while it idles the engine temperature barely increases.

I owned a 97 2.0l ranger before this and always had almost instant heat.

please advise