How long does it normally take these v6 engines to warm up before the trucks heater starts producing some warm air? In the fall when outside temps were in the 30-40f degree area, the time it took for heat seem normal. Now that its been in the teens a couple mornings it takes forever. My 4.7 tundra was never like this. I can drive this tacoma 15 minutes before the cab gets starts getting warm...just doesn't seem normal these trucks would be that cold blooded.