Why do my 2001 Toyota Sienna LE smoke in the mornings for about 2 minutes? Do regular maintenance.?

and2467 · 19 Nov 2011, 08:54 pm

Thought it was because the mechanic use a oil I never used before so I went and change it to the one I always used for years now, Valvoline Syntec (Full Synthetic) but for two mornings now it still smoke (white smoke). Once the vehicle is parked for a while like 8 hours or so that's when it smoke. Please can somebody tell me what's going on here, it never done this for all the years I have had this car.Do regular maintenance every three months.

Fabian · 19 Nov 2011, 09:09 pm

Its normal all cars do it in the morning but mostly in cold mornings. Its mostiur build up inside he exhost system that builds up like in the windows for example . So the car heats it up and it comes out as steam also it also like when u breath in cold weather u get that litle cloud of smoke come out your mouth .. so don't worry

Michael · 19 Nov 2011, 09:24 pm

Smoke for 30 seconds on startup is leaky valve stem seals, smoke for a few minutes on cold starts in cold weather is condensation - perfectly normal. A gallon of gasoline produces right at a gallon of water in the form of vapor when it burns. The obvious visual difference between smoke and water vapor is that the vapor vanishes as it disperses while smoke just disperses.

Why do my 2001 Toyota Sienna LE smoke in the mornings for about 2 minutes? Do regular maintenance.?

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