White Smoke....???

tip

Member +
Im afraid to say i too am in this boat. When im sat in traffic, my car starts to smoke like a bluey kinda colour, seems to clear itself as soon as you move off. be she is using quite a bit of oil. i thought it was either stem seals or turbo. this was all before she was takin off the road for the winter. pickin up a fresh turbo in the next few weeks and im hopin this cures her.. anybody like to add?
i have the same problem could you infor me if you're done installing the new turbo?
 

Rick

Trader
Again, I had the problem of the car being absolutely perfect on boost and when running normally, but when sat in traffic or just ticking over I used to get loads of White smoke with a blue tinge. After replacing 2 turbos it turned out to be the pcv valve on top of the rocker cover. £20 later for the valve and the rubber seal it fits into, fitted it myself and then no more smoke.
 

ciaranstynes

Fresh Recruit
Think this should clear all exhaust problems up bit long winded but you get my DRIFT

In this post carb also includes throttle body ie were the air goes in ha ha


Gray or blue smoke from the exhaust. You notice gray smoke coming from the exhaust when you start your car. The smoke may or may not disappear after the car is warmed. If it is, it is less noticeable. The smoke may have a bluish tint to it.
Possible causes:


1.The engine's piston rings may be worn.
The Fix: Replace piston rings. (Generally not a DIY job)
2.The engine's valve seals may be worn.
The Fix: Replace valve seals. (Generally not a DIY job)
3.Damaged or worn valve guides.
The Fix: Replace valve guides. (Not a DIY job)
Symptom: Engine uses more oil than normal, and there is some smoke from the exhaust. The oil level is low between oil changes. It appears that the oil is being burned by the engine because of the smoke in the exhaust. You may or may not notice the engine doesn't have the same power as it used to.

Possible causes:
The Fix: Check compression to determine engine condition.
3.The engine's piston rings may be worn.
The Fix: Replace piston rings. (Generally not a DIY job)
4.The engine's valve seals may be worn.
The Fix: Replace valve seals. (Generally not a DIY job)

White smoke or water vapor from the exhaust. You notice white smoke coming from the exhaust when you start your car. If it is cold out, this may be normal. If the smoke does not disappear after the car is warmed, you have a problem.
Possible causes:


1.Transmission fluid may be entering the intake manifold through a breather pipe doesn`t apply to EP 82 or EP 91 as it is fed to athmosphere
The Fix: Replace vacuum modulator
2.Cylinder head gasket(s) may be bad.
The Fix: Replace cylinder head gasket(s).
3.Cylinder head(s) may be warped or cracked.
The Fix: There isn`t one ha ha

Black smoke from the exhaust. You notice black smoke coming from the exhaust when you start your car. The smoke may or may not disappear after the car is warmed. If it is, it is less noticeable. Engine may or may not be running rough or misfiring.
Black smoke is a sure sign of unburned fuel.

Possible causes:


1.If you have a carburetor, the carburetor choke may be stuck closed.
The Fix: Repair or replace choke.
2.Fuel injectors may be leaking.
The Fix: Replace fuel injectors.
3.You may have a dirty air filter: Replace the air filter.
4.There may be some other type of ignition problem.
The Fix: Check distributor cap and rotor. Ignition module may be bad.
5.Check plugs for fowling gapping and detonation problems.

Fuel Odour or Drop in mpg

The car uses more fuel than normal, and there is a strong odor from the exhaust. You notice that gas milage has gone down quite a bit. There is a strong smell like rotten eggs coming from the exhaust. You may or may not have noticed that the car doesn't have the same amount of power it used to.

Possible causes:

1.If you have a carburetor (seriously?), the carburetor choke may be stuck closed.
The Fix: Repair or replace choke.
2.The engine may have mechanical problems.
The Fix: Check compression to determine engine condition.
3.The ignition timing may be set wrong.
The Fix: Adjust ignition timing.
4.There may be a fault in the computerized engine control system:.
The Fix:Check engine control systems with a scan tool. Test circuits and repair or replace components as required. (Generally not a DIY job)
5.The engine may be running too hot.
The Fix: Check and repair cooling system.
6.The fuel injectors may be stuck partially open.
The Fix: Replace injectors.
7.There may be an emission-control device that is not working properly.
8.There may be some type of ignition problem.
The Fix: Check and replace distributor cap, rotor, ignition wires and spark plugs.
9.The fuel pressure regulator may be operating at too high of a pressure.
The Fix: Check fuel pressure with a fuel pressure gauge. Replace fuel pressure regulator. (Generally not a DIY job)
 

ciaranstynes

Fresh Recruit
please som1 help us im now in this boat
i have smoke comin out and oil pumpin out roker cover pipe as well as
if i block roker cover pipe white/black/blue smoke pumps out of exhaust
iv changed turbo still the same and now started a ratterly noise on topend
what could this beeeeee???????
CPu ld be burning oil valve stem oil seals or rings back preuusre is present
 

mechiel

Member +
i got white smoke when i idling... not everytime, maybe 1 out of 5 times idling will have this problem...

coolant level is ok.

hope brothers here are able to give suggestion
 

Slug

Fresh Recruit
Simillar problem to mine

Yesterday i took my car into a garage as my heaters wont get warn enough, the car was left running for about 10-15minutes with the exhuast extraction system on the exhuast, after 15 mins i got in the car to drive it out my mate took of the the extraction pipe and the smoke whic was coming out was unbelivable massive amounts nearly gassed they guys in the garage!! any way i drove it out and the smoke was still the same amount and i took it down the dual carriageway, drove it hard and was still chucking out loads of smoke!


the only thing i did while the car was on idle in the garage was, top up the coolant with antifreeze and take the oil cap of and try to put in some Fortron oil conditioner in but as it was running it chuked it back in my face :) duh!

any ideas on what this could be my car has gone from totally smoke free to massive amounts of smoke, and around the exhuast tips theres oily/watery remains hard to tell exactly what more black like oil.
 

AdamB

Member +
You've probably just fried your headgasket. If the engine was running at idle for 15 mins it would have got upto temperature and you've poured in cold water/coolant. :homer:
 
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Slug

Fresh Recruit
That quick tho? it was just about half a litre of antifrezze which wasnt to cold kept inside, would i see instant smoke with that?
 

AdamB

Member +
Yep it don't take long. You would see instant smoke straight away. What was the temperature gauge at before you poured in the coolant?
Get a compression test done and that will reveal all mate.
 

Slug

Fresh Recruit
it was just below half, i will get a compression check done would i be getting low readings if the heads gone? the car pulls normal and drives fine atm.
 

AdamB

Member +
Yeah get a compression test done, yeah if the headgaskets gone you will get low readings between cylinders. Cylinders ideally should all be within 1 bar of each other. Check your overflow bottle, is it gone all black and oily in there?
 

Slug

Fresh Recruit
ok will get a compression test done tommorow and see what results i get, if i have pushed it over the edge with my dopeyness im guna be kicking myself hard!!!
 

AdamB

Member +
You wouldn't be the first person I know do it, nor will you be the last mate.
If your unsure on the readings post them up on here :)
 

dark_knight

Member +
occasional white smoke, usually from idle when pulling away

i'm having occasional white smoke but i recently had my turbo rebuilt so i'm uncertain if perhaps something went wrong with that..? :(
anyway. it's once in a white and it's a whiff of smoke, not a whole load of white smoke..
my engine is at 156k km so i'm afraid it may be my valve stem/seals..? :(
 

AdamB

Member +
If it was valve stem seals you would be burning oil, which is blue smoke. I would get a compression test done, if all is well there then it might be a problem with the turbo.
 

dark_knight

Member +
burn point

yes AdamB.. also trying to understand and verify that the color of the smoke will depend on where it is being burned..? right..? as you mentioned, burning oil in the combustion chamber will give blue smoke..? while burning oil post-turbo will give white smoke..? correct..?
so then, if my turbo was just recently rebuilt then how come i'm still getting whiffs of smoke..? is it that they take a couple of kilometers to settle in..? it's a ct9b and my engine is at 156k km. turbo was rebuilt at 155.5k km. have a straight-through cat-less exhaust..
just trying to wrap my head around it.. :rolleyes:
 

AdamB

Member +
It depends whats being burnt, regardless wether its before or after the turbo. I've never ran a turbo in, its good to go straight out the box, aslong as it's primed before firing up the engine.
Are you sure it's not condensation?
 

dark_knight

Member +
i'm 107% sure it's not condensation coz it smells and comes on and off even when the engine has been running and warm for well over half hour.. plus, our weather here is not cold enough to try and place condensation as a usual suspect. it's defo smoke.. that's for sure..
 

GTnomez

Member +
Brothers mr2 is smoking like a right bitch! Proper heavy white smoke!!!!! I dont know what it is to be honest, i think turbo but he says hes not losing oil and it cant be valve coz its no blue.

Might be H/g or something else but its heavy white smoke on start up and when you rev it.
 
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