LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

white smoke on start up???

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Old 05-01-12, 05:12 PM
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dougie23
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Default white smoke on start up???

im getting white smoke on start up? only on start up!!! nothing else what can it be?
Old 05-01-12, 07:23 PM
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FrankReynoldsCPA
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My best guess is you've got a head gasket issue, and you're getting coolant in your engine. That's just a guess though.

I don't know if it applies to gas engines, but I know EGR issues on diesels can cause white smoke.
Old 05-01-12, 08:20 PM
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PerpLexusd
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That's usually a result if the idle air control valve located under the power steering pump going bad. It leaks power steering fluid into the intake manifold and causes a big white cloud on startup that usually clears after a minute or two. I think there's a write up on lexls.com on how to replace our just get rid of it. If not there,the are some tutorials on here how to do it .not a very tough job
Old 05-01-12, 08:27 PM
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GS4_Fiend
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How much is it smoking? Post a video. If it's just light smoke, it's normal. It's condensation early morning.
Old 05-01-12, 09:47 PM
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PureDrifter
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sounds like this. please read the 1st gen sticky or whatever sticky applies since you DIDNT POST YOUR YEAR
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