Join Date: Oct 2014
Location: Nashville, Tennessee
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Of course all cars get bit hotter while idling a long time, but when it. Gets too hot it is a common symptom of a bad fan clutch.
They slowly deteriorate, leaking the silicone fluid out. Make sure you have the “Thermostatic fan clutch”, they make 2 types that look almost identical. One is RPM driven and will not cool good at idle in traffic even when new.
Look at the front radiator side of the clutch, if it is smooth it is an RPM clutch if it has the spring it is thermostatic.
Feel the fan blades, try to do that with the engine off, ......and see if it is oily from leaking silicone. Even a slight deterioration of the seal will cause you to run hot at idle.
Make sure your fender well rubber mats are in place as well as they effect the air flow, distance of fan to radiator matters and half in and out of shroud....a partially opened thermostat may also cause you to run hotter.
If your cooling is good at speed then look at those things. A bigger four core radiator with extra wide downtubes helps too, “High efficiency”
Hang in there you will get it