Quote:
Originally Posted by Gaswain13
I have heard mine do that as well. My brother's 2020 tacoma does as well. I noticed mine do it when it was sitting for several hours after driving and the temp changed. Opened the gas tank and there was a lot of vapor pressure in it. Guessing something to do with Evap emissions.
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That’s a common question and normal. Anywhere from 3-5 hours after sitting, the vehicle will do a system test. It last about 10 minutes or so. There’s an explanation in the owners manual.