Coolant overflowing the overflow container.
SEE PICTURES ON PAGE TWO OF THE THREAD. SEE PICTURES ON PAGE TWO OF THE THREAD. 2016 Toyota Sienna with 15,000 miles. Coolant has appeared on TOP of the overflow tank since the van was new. I...
Forum Discussion
jeffo, unfortunately, I think you just answered your question.
Under normal use, especially an easy drive in cold weather, there should be zero coolant overflow into the overflow tank.
Remember when vehicles just p!issed antifreeze when they overheated? Now it goes to a tank.
That level should not chmage unless it's blowing past the rad cap, or somewhere else the cooling system is not holding design pressure, OR something is over pressurizing the system.
My money says the Yota dealer tried a couple bandaids and didn't check for other more serious causes.
Under normal use, especially an easy drive in cold weather, there should be zero coolant overflow into the overflow tank.
Remember when vehicles just p!issed antifreeze when they overheated? Now it goes to a tank.
That level should not chmage unless it's blowing past the rad cap, or somewhere else the cooling system is not holding design pressure, OR something is over pressurizing the system.
My money says the Yota dealer tried a couple bandaids and didn't check for other more serious causes.
