mine's a 96 honda civic. experiencing the same problem lately.
i discovered that the fan isn't turning anymore. although pinukpok nung mekaniko at okay na ulit, he said kailangan na ng new fan.

sabagay, logical nga naman kasi nag-ooverheat siya pag nakahinto yung kotse pero pag gumagalaw ng mabilisan, bumababa yung temperature kasi siguro dahil sa hangin.

Sana nakatulong!