White smoke smell of petrol and knocking

thenightrider

My 02 focus has white smoke coming from the exhaust and the engine is makeing a knocking noise and my oil was very low it is full now as i have filled it up.

Any ideas what it could be ?

thenightrider

thenightrider wrote: »

engine is makeing a knocking noise

Jehovah trapped under the bonnet :pac:

Seriously though, low oil means it either leaked or burnt it, knocking could well be the bottom end due to oil starvation and white smoke is generally coolant being burnt off, is your coolant level ok ?

If coolant is low I reckon it's the HG.

Anan1

How low was the oil? Did your oil pressure warning light come on? How far did you drive like this? How's your coolant level?

Toots

I had white smoke and knocking in my first car, and my head gasket had gone. Not sure if that's typical 'symptoms' of head gasket failure, but that's what happened to me

matt-dublin

open the oil cap and check the colour of the oil on the cap.

if its a yellowey mustard colour its your head gasket.

whats the engine idle like?

thenightrider

I cant check the car on till later on this evening so im not sure what the coolent level is like but i think it is ok the car had being loseing oil as i had to keep it toped up the oil light would come on the odd time on a roundabout or a sharp turn but when it start knocking i stoped the car and got a tow truck to bring it home

It knocks when it is idle and the knocking gets faster if you rev the car

matt-dublin

is the idle itself lumpy when its cold, ie does it sound like a subaru impreza?

if you've got yellow goop under your oil lid its deffo your HG

thenightrider

I made this vedio of the noise of the engine the other day ps the video is crap but you can hear the sound of it idle

http://www.youtube.com/watch?v=ZdxD73MliVs

Henry Ford III

That's not good OP.

andyseadog

christ on a bike! turn it off!!!!

i dont have much of an idea but it really doesnt sound well :eek:

matt-dublin

sounds like head gasket and big end bearing and or timing is off and a piston is hitting a valve.

might be a write off, you're easily looking at circa 1500 yoyos to fix.

Nonoperational

Eeeh, that sounds pretty bad. Big ends at least I'd say. Sorry.

Technoprisoner

that doesnt sound good at all...maybe new engine time

Plug

thenightrider wrote: »

I made this vedio of the noise of the engine the other day ps the video is crap but you can hear the sound of it idle

http://www.youtube.com/watch?v=ZdxD73MliVs

New engine mate:( Make sure you look after the new one.

_Conrad_

there's a technical term for that: It's f*cked!

Does not sound good at all.

thenightrider

Does any one no would i be better of trying to get what ever is broken in side the engine fixed or geting a used enginge from a scrap yard ?

Anan1

thenightrider wrote: »

Does any one no would i be better of trying to get what ever is broken in side the engine fixed or geting a used enginge from a scrap yard ?

That engine's finished - sounds to me like it's been driven without oil. It'll be far cheaper to replace than to rebuild.

andyseadog

thenightrider wrote: »

Does any one no would i be better of trying to get what ever is broken in side the engine fixed or geting a used enginge from a scrap yard ?

burning that much oil, possible head gasket failure and whatevers causing that noise is probably terminal.

bin that engine, unless you want to be spending well up and over a grand.

Mr Benevolent

OP, next time check the oil regularly. That sounds nasty, and it's hard to kill a Focus.

matt-dublin

Would have thought a focus ofthat year would have an oil light?????

andyseadog

matt-dublin wrote: »

Would have thought a focus ofthat year would have an oil light?????

it does, he said it flickered occasionally :rolleyes: