techie1961
New member
I have an '06 that has had a weird issue since new. It has been to the dealer a couple of times but with this being a work truck, I can't leave it very often.
The issue is that in the winter months when I need the heat (Toronto Canada) I can only get full heat or no heat. The fan switch works fine but if I turn the temperature control a bit off the bottom position, I get roasted in the cab. I have made due on the highway by shutting off the fan altogether and the small amount of air transfer is usually okay unless it is really cold.
When I use the truck in the summer (cold mornings etc.) the heater works fine and you can adjust the temperature fine. It is only when it gets really cold. I don't think that it is the control knob as it seems to work unless it is cold out. Is there a sensor that could be acting up?
Any ideas are appreciated as winter is coming again. I need ideas that I can check on my own as I can't leave the truck for any extended period of time.
The issue is that in the winter months when I need the heat (Toronto Canada) I can only get full heat or no heat. The fan switch works fine but if I turn the temperature control a bit off the bottom position, I get roasted in the cab. I have made due on the highway by shutting off the fan altogether and the small amount of air transfer is usually okay unless it is really cold.
When I use the truck in the summer (cold mornings etc.) the heater works fine and you can adjust the temperature fine. It is only when it gets really cold. I don't think that it is the control knob as it seems to work unless it is cold out. Is there a sensor that could be acting up?
Any ideas are appreciated as winter is coming again. I need ideas that I can check on my own as I can't leave the truck for any extended period of time.