Sitting in it at night, for whatever reason will not cause the vehicle to overheat.
I would suspect the problem is a low coolant level, or a bad thermostat, those are the most common problems with overheating.
It might also be that its time for a cooling system flush.
In rarer cases the water pump may not be functioning properly, the cooling fan may not be coming on, there may be a bad headgasket, or the ignition timing is off.
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Friday, May 16th, 2008 AT 3:48 PM