Question about 2005 Toyota Highlander
The heat goes cool at high temp setting . Moving the temp control up and down and it works good again for a short time. The two heater lines going thru the firewall are hot. Engine temp. is constantly normal. Coolant is full and under pressure. Any suggestions ?
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Pull the temperature knob off and verify the thin 12mm nut is installed and tight behind it. I have seen several of these loosen up allowing the knob to turn but intermittently have no effect on temperature.
Posted on Sep 11, 2009
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Posted on Jan 02, 2017
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