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My air conditioner is having some problems, so on Monday it will be taken care of. When I'm on vacation, I like to get a few days of work done on my car.

Everything from the radiator to the cooling fan to the hoses and the thermostat are original components, so I've been thinking about getting them back in the hopes of avoiding any potential problems in the future. There are 110k miles on this 2004.

At about 100,000 miles, our 2002 Camry's cooling fans stopped working, and a year later, the original radiator began leaking from the side tanks, so I had to replace it. I'm considering this because of that.

Is it worth it to try to fix this on my Corolla, or has anyone else had this problem at around the same mileage and age? Spending the coin carelessly bothers me, but I see the value in being able to do it when it suits me, rather than having to deal with the hassle and potential emergency of a broken cooling system on the highway during our hot summers.

After ten years, the majority of radiators stop working properly; if the tank turns brown instead of grey, it's time to replace it. If the fan, waterpump, and thermo are in good working order, I wouldn't bother replacing them. However, radiators often break down at inopportune times, so it's wise to perform preventative maintenance on them. Good luck.

Investing in preventative maintenance is a wise choice if you intend to keep the car for a long time. Otherwise, there's no point.

It was something I did not long ago to my 2006. I used an original equipment manufacturer (OEM) part for every single component: radiator, hoses (upper and lower), clamps, hoses for the coolant expansion tank, thermostat (with o-ring), housing (for the thermostat), and water intake. Take note that moving the alternator is required to adjust the thermostat; it's not difficult, but it is somewhat inconvenient.

I omitted the hoses to the throttle body and the rear heater core since they appeared to be in good working order. The water pump was another topic of discussion, but I've decided to put it off until I find a leak.

Of course! Check the plastic components of the radiator for signs of cracking after 23 years. For coolant, all of the hoses—from the pump to the Tstat to the radiator to, perhaps, the throttle body hoses. As rads should be changed every ten years, according to one shop. The frequency of coolant changes is what?

The last time I had to flush the coolant was four years ago, when I first got the car. That was another opportunity target that needed to be addressed concurrently with the other things.