Toyota Repair: 94 Toyota Camry, air control valve, electric cooling fan

Question
My 94 v6 Camry just recently started blowing luke warm air then transferring to hot air.  This goes back and forth.  I replaced the thermostat last weekend because it overheated on me.  Also, when I am idling, the temperature gauge sometimes starts climbing toward HOT, but when I take off it seems to go back to normal range.  And last but not least, every now and then, when I start the car, it will die automatically, then when I start back it dies again.  But the third attemp, I start it and give a little gas and it does fine.  Please help.

Answer
Check that the electric cooling fan turns on when the engine reaches normal temperature, if the fan comes on as it should the problem may be a partially restricted radiator. The stalling is another issue, it is normally due to a sticking idle air control valve which is loacated on the throttle body, replacing this IAC valve solves the idle and stalling condition.