diyos mio! kakagaling lang ako sa ganyang predicament this past weekend, radiator hell, i tell you. nasimot ang buong weekend ko kaka troubleshoot and paayus and pa-backjob na paayus ulet *sigh*
anyways, just some useful tips that might help you as well:
1. Check all hoses (kung sure ka na walang leaks) for holes or loose clamps
2. Check and test you auxillary fan na rin
3. Check radiator cap
4. Just for the sake of it, DOUBLE check for leaks (some kasi are really small, pero sisingaw yan under pressure hence it wouldn't produce any visible droplets.
5. shempre, have it checked by your trusted mechanic or radiator specialist.
Wala ka nkikita na tagas dahil wala ka coolant to help you in your failure analysis.