I had my radiator replaced 2 months ago, and now since the weather has been getting warm and humid, my car tends to overheat at idle. The temperature will shoot up to 105, 110 while i'm idling in hot weather, heavy traffic, etc, and then the aux fan kicks in until the temp drops. Also, If i shut the car off when its hot and restart immediately, the temperature starts off at about 110 and the aux fan kicks in right away. Could this be the thermostat?? or something bigger? Im planning on changing it this weekend. Thanks


Agron
1989 300E (108k miles)