Newbie with a 2005 with an interesting heater situation

[CA]

Hi there,

Just joined the forum today and joined the ranks of Sport Trac owners last week with the purchase of a 2005 XLT and overall I'm liking it. I've noticed an interesting situation with the heater... when I turn left, the vents spew out an almost unbearable temperature of hotness. The air flow rate doesn't change, but the temperature of the air sure spikes. It only seems to do it during left turns.

Any idea what might cause this?

 

[JuBean]

How much coolant is in the radiator and expansion tank? Sounds like the pump is struggling to catch a prime or there is some other coolant control issue.
If you switch the temp dial to cool do you get the same heat coming from the vents?

Welcome to the madness!

 

[CA]

Thank you for replying! I had thought that it might be a coolant level issue as well, like making a left turn would allow coolant to slosh inside the heater core or something, but the radiator is full and the expansion tank is in the normal range.

If I rotate the dial to cool, temp levels appear to be normal for the setting.