Toyota estima stated to overheat

Question edited for clarity.

Dangerous! You need to find a new mechanic. Start with the fuel tank. They rust and perforate on the top where is is difficult to see where mud sits on top and slowly rusts away the metal. When you go around corners the fuel slops about and soaks the mud on top. I had this on a Toyota Tercel.

Then check the fuel lines from the fuel tank all the way up to the engine. My sister in law had perforated pipes, just enough to get damp, right under the left pedal where there was also a tiny hole in the floor..

consider topping up fluids, driving at night [ easier to inspect than in daylight ] untill engine heats up stop,
open hood and use bright flashlight to inspect. may just be pin hole in hoses or loose clamps. look at overflow
expansion tank return for leaks to ensure overflow tank is higher up when engine temperature is up.

no other signs just the dash gauge, upset? what if its fibbing?
no steam, no water to ground overflowing overflow tank.
no engine pinging. no lost power, from engine, SIGNS. are key. here.
Did you consider using a IR pyro gun for $20 and find if it is really overheating,? the gun also finds clogged rad tubes, childs play like.
are you loosing coolant. that is when cold actually off the cap
and look down deep in the RAD tank? This matters, most.

which engine,? 2.5,4L or bigger?
what does no coolant going into...., mean.?
it's a loop system.
first off, we need to know does it overheat only parked?
or can you drive it from cold and keep it going and it never overheats
moving fast.?
if the engine stays cool 180F, moving fast , then your stop. and NOW it it overheats, that means the fan is dead.
or a marginal radiator, (Pyro gun to rescue)

what symptoms,dash gauge, steam, water blasting out of overflow tank. pyro gun snows its too hot,, etc.
overheats under what conditions, parked , moving fast or both.?

Is your upper rad hose hot? Any heat in the car? If not usually the thermostat. More info. Hope its not a headgsket. Any leaks on the ground?

Replace radiator water by adding coolant

Hi!

You night have a bad head gasket leak wish pushes the water up.

Sounds like the intake gasket or even possibly the head gasket have gone south if everything else has been replaced. Internal engine leaks will cause engine to overheat very easily.

The air conditioning system need to be fill with gas,there is not enough gas in it that why it is doing that,Hope that help you,If there is not enough gas ,when you switch on the ac button it turns the ac compressor and cut off immediately because there is not enough gas.