Originally Posted By: bullwinkle
Originally Posted By: KrisZ
If your camry has the same setup as my inlaws Echo, then the overflow cap is not pressurised, you can easily unscrew the cap while the system is hot with no hissing, it's just an overflow tank.
My cap actually states the psi rating on it and you will hear the pressure release when you unscrew the cap while hot/warm.
If you can smell coolant when the engine was really warmed up, like extensive stop and go with AC on, and could not find any leaks, that means some of it is evaporating from the overflow tank.
The coolant can go 10 years, the Echo I mentioned, was made in 2000 and has over 200,000KM, coolant has never been changed (maybe topped off, I don't know) but is nice and pink in the overflow tank and through the radiator fill hole.
I would wait untill the level gotc close to the min. mark and top off with Toyota pink, or just top off now.
A radiator drain and fill will always be good if you want to do this, but not necessery.
Are you sure your Echo isn't the Long Life Red-I thought that was only good for 5 years. The Super didn't come out until '04.
It might be, I don't know as it is my FIL's car
, but right now it looks pink when dropped on a white paper towel. If you are correct than it's way overdue, but knowing my FIL it will not be replaced until something in the cooling system fails, it's just the way he is, I don't bother anymore with trying to change his ways.
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I think the '06 Camry's coolant system must be pressurized because I see "108 kPa" written on the radiator cap along with a warning not to open the cap when hot.
I was talking about the overflow tank in your toyota, and that cap is not pressurized, as it just holds extra coolant when the system gets hot and coolant expands.
My car does not have a radiator pressure cap, instead the coolant tank is pressurized and coolant flows through it all the time.