Getting lots of white smoke from my exhaust

devonlad2010

New user
Sep 3, 2012
5
0
devon
Hi guys i seem to be getting loads of white smoke from my cougar exhaust. I drive 10 miles to work each way on a motorway and by the time i get to work its still smokeing. Iv checked the coolant and thats fine and still a nice blue coulour and the oil looks fine too with no signs of water getting in. I have my mot coming up too next month so im worried that it wont pass cuz of this
 
It's just steam. Burning hydrocarbons in oxygen produces carbon dioxide and water. You can't see the CO2 but you can see the water you produce, particularly in cold weather when it stays as steam droplets rather than evaporating into much smaller pieces.
 
All Cougars do this in colder weather. The design of the exhaust seems to lend itself to gathering condensation, which then gets boiled and evaporated once you start the car and the exhaust gets hot.
 
My zetec does it too, at outside temp of 10c or lower it's even more noticable, pretty normal


Laura said on your car it's because the measly 4 banger poverty engine struggles to haul you, your ass and the moons in your own personal atmosphere! I tried to tell her that was bang out of order and that the Zetec was actually not so bad but she wouldn't have it! :LOL:
 
On the Jag forum some nobber was whining that his new XF had a serious design flaw, because he got wet driving with the windows down in the rain when smoking a fag...
 
Ok guys thanks for your help. I thought it may of just been because of the cold weather and when i drive it to work the back box is stone cold lol
 
On my old cars, steam when it was hot meant you'd either thrown the head gasket or inlet manifold. So when I saw my Coug doing it I thought I was in for a weekend under the bonnet.

But Ms. Mako - an ex-Ford bod - says that this is completely normal and unless you're losing fluid, have mayo under the oil cap or it's overheating... ignore it.
 
There is always moisture in your exhaust produced by burning fuel, the combustion products are CO2 and H2O. All car exhausts steam especially on a cold day as the moisture condenses quicker in the cold air. Also the bigger the engine, the more fuel used and the more steam comes out.

I would understand white "smoke" to be something considerably thicker and more serious ?

Cheers