So, the second phase of my project is to treat the car's cooling system. My plan is to replace the thermostat and also flush out all the rust/debris that accumulated over the 10-year period. Of course it has been flushed before but this time, I am going to use the Prestone AS105 Radiator Flush+ Cleaner.
In my previous car, I would just flush it after letting the engine running for 15 minutes. But this time, as per the instructions, I would drive the car for a few days, then flush it out and replace with Toyota Long Life coolant and leave it in there for maybe, two years?
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So I got the guys to help me out a little by supervising my actions. And thankfully, their 10mm was much stronger than my puny Pro's Kit. The replacement took about 5 minutes and boy, there was rust inside the system!
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This was the original thermostat from the car and the brown is actually the 10 year old rust
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| And it would be operating when the water temperature reaches 80°C |
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Compare this with the one I bought, which is gleaming silver.
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Anyway, once the thermostat is in and the guys confirmed I did it correctly, I poured this whole bottle of Prestone Flush+ Cleaner and let it run around the system for a few days before I flush everything out.
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The temperature gauge (on the right) is about 50% and once this is completed, I hope it would drop back to about 25% or thereabouts. If it does not, it means the water pump would be the next suspect.
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