![]() | Home > Technical (L322) > L322 4.4 TDV8 putting out clouds of white smoke at idle. |
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Strobe84 Member Since: 21 Feb 2024 Location: Worcestershire Posts: 23 ![]() ![]() |
Hey. Did you ever get to the bottom of this? |
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D3Jon Member Since: 15 Aug 2020 Location: Lincolnshire Posts: 515 ![]() ![]() |
I know you've mentioned the fuel rail pressure drop, which leads you to think it's got a dripping injector, which would cause nearly all of your symptoms (except I'd expect the smoke to clear shortly after start-up as the excess fuel in the cylinder is burnt off).
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Dijit Member Since: 09 Jul 2012 Location: Glasgow Posts: 167 ![]() ![]() ![]() |
D3Jon, No its not brake fluid but thanks for the suggestion. Rehab is for quitters!!!
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Strobe84 Member Since: 21 Feb 2024 Location: Worcestershire Posts: 23 ![]() ![]() |
Yes. I've got a similar issue with my 4.4... I've noticed that under certain conditions it smokes quite heavily then clears. It seems to be a mixture of blue, but mostly white "smoke" which I can't determine between steam and smoke. It seems to be that if it's been sat idling for a while, then I drive away, after a while it'll start doing it. If I don't idle it, it doesn't seem to do it... It doesn't idle rough, there's a slight "rattle" only heard from inside the cabin which we've put down to a small amount of chain slap but that's it. |
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dhallworth Member Since: 10 Oct 2011 Location: Glasgow Posts: 3192 ![]() ![]() ![]() |
Strobe84 - That'll be your secondary turbo. Oil builds up in it as they idle or are driven gently and when you put your foot down and spool up the 2nd turbo it clears the oil as smoke.
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Strobe84 Member Since: 21 Feb 2024 Location: Worcestershire Posts: 23 ![]() ![]() |
I'm pretty certain I didn't spool the second turbo and it was still doing it. Also... Why white? Oil burn should be blue, no? |
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fisha Member Since: 25 Sep 2009 Location: Scotland Posts: 1458 ![]() ![]() |
No, oil burn is typically white. Used to be an easy way to tell if the timing on the older diesel engines was on its way out ... it would puff white.
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D3Jon Member Since: 15 Aug 2020 Location: Lincolnshire Posts: 515 ![]() ![]() |
Generally when engines burn oil, the smoke colour produced is regarded as grey or blue/grey. Not white.
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