Good day sirs/mas
Please, what can i do to stop my corolla 2009 from overheating when AC is on after an hour?

Check if both your fans are working well

If both fan are working

Check your oil

I only have one big fan there

Namdeenero:
Check if both your fans are working well

I just service it. The trip covered since i service is just 14.9

kozmokaz:
If both fan are working

Check your oil

Raregem9000:
Good day sirs/mas
Please, what can i do to stop my corolla 2009 from overheating when AC is on after an hour?

Start from the basics, check the radiator cap, if it's weak change it.
If it's ok, check the radiator for leakage. Some leakage will only occur when pressure has built up, so you might have to inspect when the engine has warmed up.
Radiator might be dirty too.

I noticed that water do escape from the reservoir when the engine is working with Ac on before the overheating starts

Peppermintflav:

Start from the basics, check the radiator cap, if it's weak change it.
If it's ok, check the radiator for leakage. Some leakage will only occur when pressure has built up, so you might have to inspect when the engine has warmed up.
Radiator might be dirty too.

Raregem9000:
I noticed that water do escape from the reservoir when the engine is working with Ac on before the overheating starts

If so change the radiator cap

Raregem9000:
Good day sirs/mas
Please, what can i do to stop my corolla 2009 from overheating when AC is on after an hour?

Check for leaks in head gasket area, radiator etc

I thought Corollas are faultless?

OfficialSam:
I thought Corollas are faultless?

Pls if you have suggestions to the problem

Give

Raregem9000:
I noticed that water do escape from the reservoir when the engine is working with Ac on before the overheating starts

Your radiator probably has small leaks.

Do you have to top off the water in your radiator or reservoir often? If yes, you have a leaking radiator. So change it with a brand new radiator and your problems will be solved.

Yes, i do top it often if i use AC because the water use to dry off completely when it overheats

Grupo:


Your radiator probably has small leaks.

Do you have to top off the water in your radiator or reservoir often? If yes, you have a leaking radiator. So change it with a brand new radiator and your problems will be solved.

Raregem9000:
Yes, i do top it often if i use AC because the water use to dry off completely when it overheats

Your radiator is obviously leaking. Change it.