Toyota Repair: 93 CAMRY 3.0, electric cooling fan, toyota dealer

Question
1993 CAMRY 3.0 AUTO 27800KM
HELLO
WHEN I START THE CAR EVERY THING SEEMS GREAT AFTER A WHILE TEP GUAGE TO RED AND NOHEAT IN A CAR RESERVIRE START TO BUBBLE UP THAN AFTER FEW MINUTS CAR IS FINE IT ONLY HAPPENS WHEN I AM DRIVING NORMAL ON IDEL I CHANGE THERMOSTAT SO FAR NO TECH IS GIVING ME A RIGHT ANSWER CAR PERFORMANCENEVER CHANGES  PLS HELP  THX

Answer
A couple of possibilities, the radiator may be clogged and restricted, the electric cooling fan may not be coming on, there may be a blown headgasket, I can't tell which one it may be without actually doing some tests on the engine so I would recommend having a competent repair shop or the toyota dealer take a look at it and check for external leaks and the above mentioned possible problems.