How to handle potential coolant leak?

legiz · Oct 18, 2020

timsp8 said: ↑

Is there any white smoke from your exhaust? That indicates a coolant leak also. Id say replace your cap and, depending on what they tell you about that little spot next to the cap and circled above, clean it all off and keep an eye on it.

I wouldn’t start arguing with the dealer and calling Toyota corporate yet. There might not even be anything wrong. You’ll end up being that guy that they don’t want to help cause they think you’ll argue everything. Do you want them to start tearing your truck apart if nothing is wrong?
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No white smoke from exhaust that I've noticed, i will look today. and thanks I will do that. I will stay positive. Its just a truck after all.

legiz · Oct 18, 2020

JohnLakeman said: ↑

That would be my conclusion. And, if there isn't any evidence of leakage in the usual external locations in the system, I would worry about the internal leak scenario @timsp8 outlined. You'll need a powertrain warranty if that's the case.

How did your temperature gauge behave during that 1000 miles of driving? Was there any evidence of overheating on the gauge?
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Ok, i have a few years and 30k miles of power train left. Plus I bought a 100k, 5yr warranty which should cover power train, i will double check that.

The temp gauge was normal on those drives, I didn't see any indication of overheating. I will keep a close eye on the overflow tank.

Dalandshark · Oct 18, 2020

JohnLakeman said: ↑

Yes, if you are not actually losing coolant, then your thinking is correct.

You (and we) are looking at a relatively short-term "snap-shot" at this point. If there isn't a coolant leak, then one possible explanation would be there was a previous incident of overheating, or a continuing tendency to overheat, and the air wasn't thoroughly purged out of the cooling system when refilled (note replacement radiator cap). In that case, you shouldn't have to keep adding coolant...one or two additions should correct the problem.
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+1 Maybe previous owner changed fluid and didn't get it filled up all the way. Could be that simple.

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