Radiator / Overheating Problem

[makinao]

The leak could be anywhere. Radiator, hoses, reservoir, water pump, or heaven forbid the engine block. The last time I had a cooling system problem, my mechanic sent me to Keyser in West Avenue QC. Wasn't cheap, but they looked at everything before they gave me a diagnosis and estimate, which was exactly the same as my mechanic's diagnosis.

[mina_nuka]

+1 on the thermostat. My guess its stuck

Next is rad cap.

Ask you mechanic to remove the thermostat. If it doesnt overheat anymore, go buy a new thermostat.

That is assuming your fan is working

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Not all liquid cooling systems are the same. If the car has a three way thermostat, it will overheat even if it did not with a working thermostat removed. Read the description and system operation in the repair manual if you have one.

[oj88]

Not all liquid cooling systems are the same. If the car has a three way thermostat, it will overheat even if it did not with a working thermostat removed. Read the description and system operation in the repair manual if you have one.

I doubt that the Avanza has a three-way valve.

[sirkosero]

I doubt that the Avanza has a three-way valve.

Ditto.

Its an avanza. Dont think its cooling system is anywhere near fancy

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[mina_nuka]

Not familiar with the engine used in the avanza but do you have pictures of the thermostat?

[oj88]

Not familiar with the engine used in the avanza but do you have pictures of the thermostat?

It's top secret. But I think Google has the results you want.


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[mina_nuka]

toyota avanza thermostat - Google Search


That, amigo, is a three way thermostat😁

[oj88]

toyota avanza thermostat - Google Search


That, amigo, is a three way thermostat

There you go. Good for you. ;)


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[miked]

There you go. Good for you. ;)


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a e saglit lang mga bossing...ano ba yang 3-way thermostat na pinaguusapan ninyo? napagiwanan na ata ako ng panahon.

o baka naman yung ibig sabihin na "3-way" e yung inlet, outlet at yung bypass....hihihi

napatanong ako bigla ke manong google e ang sagot ba naman e yung pang hvac....

[mina_nuka]

What was the last thing performed to the engine that might involve the cooling system?

Às per this diagram
toyota avanza thermostat - Google Search
The system should have been bled at two places if at any point the coolant was low or was drained and refilled