I'm a new owner of an 87 Vanagon GL.  For the past couple of days the coolant blinker light occasionally blinks for a few seconds and the car often "hiccups" at the same time.  The temperature needle seems fine, always right in the middle (well, just below light) at operating temp.  Coolant level seems fine, V-belt seems fine, I don't know about the fan.  What else?

Jerome