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cozz

Member Since: 15 May 2013
Location: nottingham
Posts: 539

my 2008 2.4 with 131k puffs a bit of smoke on cold start up

23rd Nov 2024 11:15pm

hank

Member Since: 12 Sep 2016
Location: South Wales
Posts: 2301

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

I think they all do it. I have a theory but could be way off... I wonder whether the residual pressure in the fuel rail on shutdown weeps by the fuel injector needle(s) and leaves a small amount of excess fuel sitting in the bore(s) which burns off blue on next startup?

I know that blue smoke usually indicates oil, but my 2.4 does the blue puff at startup yet doesn't use/lose a drop of oil > 110 XS Double Cab

25th Nov 2024 10:46am

Bluest

Member Since: 23 Apr 2016
Location: Lancashire
Posts: 4216

2007 Defender 110 Puma 2.4 XS CSW Java Black

I get quite lot of blue smoke for the first few yards after very cold start. It's a bit embarrassing, but I don't have an oil consumption issue, so I'm not too worried. It seems to be on the overrun or idle, rather than under power. It definitely look like oil smoke and not diesel to me. I've been pondering whether the low temp lets some oil past the turbo or valve stem seals when the car is sat. 2007 110 TDCi Station Wagon XS

25th Nov 2024 11:07am

jbcollier

Member Since: 29 Apr 2024
Location: Edmonton AB
Posts: 108

2009 Defender 110 Puma 2.4 SW Alpine White

I have an engine heater on mine. If I use it, there is absolutely no smoke. So it's not leaking down injectors. If I don't use it, and it is proper cold, it smokes quite a bit. Zero oil consumption, so it's not that either.

It just is what it is.

25th Nov 2024 1:09pm

custom90

Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20443

There is steam as well, sometimes it can seem to be what it isn’t depending on lots of factors. It’s quite normal anyway No Guts, No Glory.
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25th Nov 2024 1:14pm

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