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06-25-2022, 12:09 PM | #1 |
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Drives: 2017 Yaris HB Join Date: Jun 2022
Location: Virginia, USA
Posts: 1
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Intermittent white smoke in exhaust, but only under very hard acceleration
We live in the Blue Ridge mountains, so naturally we have to climb large hills. My issue started 2 weeks ago. While climbing a hill on the interstate, trying to pass a semi, AT downshifted and was spinning around 4500rpm. All of a sudden, I’m throwing a James Bond level smoke screen. I’m thinking I blew the head gasket. Pull it over, get down to idle, the smoke stops. Pop the hood, have the wife hit the gas, puff of white smoke. Back to idle, no smoke. Start babying it to the exit to find a garage, and the smoke stops entirely. Make it home, no noticeable mixing of oil and coolant, no leaking signs. No consumption of liquids in oil, coolant, or tranny. Tried to replicate it around my neighborhood, couldn’t do it again at low speeds. No codes. Two weeks later, while climbing another large hill on interstate, it starts again. The smoke doesn’t smell like anything but exhaust. Any ideas?
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06-25-2022, 05:14 PM | #2 |
Drives: 2007 5dr canadian import Join Date: Dec 2016
Location: pacific north WET
Posts: 1,025
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white is always coolant, blue is always oil, trans fluid you will smell a very sweet burning
best guess is your losing a head gasket |
06-26-2022, 06:07 AM | #3 |
Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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Head gasket I’m afraid. You can get chemicals to add to the coolant which will change color if they detect exhaust gases. You take a sample of Coolant and add the chemicals.
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Synthetic Oil: Its All In Your Head |
06-26-2022, 08:04 AM | #4 |
Drives: 2010 yaris 3 door hatch Join Date: Jun 2013
Location: Sheboygan Falls, Wi.
Posts: 506
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One thing you can try is put a nitrile glove over the radiator fill hole and start the engine. If it inflates even the slightest then you have head gasket issues.
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