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Car is smoking when driving don't know what it is

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Black smoke: Black smoke is often a result of too much fuel and not enough air in the combustion chamber. In rare cases, it can be weak fuel pressure causing fuel to 'drip' from injectors rather than 'spray'. It can also be caused by weak fire in the combustion chamber.

Gray smoke:
Gray smoke is caused by brake fluid. It generally means that your brake master cylinder is bad, and is getting sucked through the vacuum brake hose.

Blue smoke:
Blue smoke is generally caused by the burning of an oil in the combustion chamber. Normal causes of oil getting into the combustion chamber are weak piston rings, bad valve guides, bad valve seals, or plugged up engines where oil is sucked back through PCV system,usually due to lack of oil changes

Posted on Jan 14, 2013

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Posted on Jan 02, 2017

Nemesis5791
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SOURCE: already had the carburator rebuilt

That indicates it might be running too rich, have the air fuel mixture adjusted.

Posted on Aug 23, 2011

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I have an 2005 chysler Sebring convertible and my coolant temp been going to overheating .when I check the antifreeze in my car its very low and boiling add a little more 50/50 with water and now...


When the car is running check to see if both the top and bottlm radiator hoses are hot...i have a feeling your thermostat may be stuck in the closed position, therefore the coolant is not circulation through the engine, causing it to overheat

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Drain that oil out and put in 10W30 and see if it clears up. I would not change the oil filter this time. Most of the oil in it will drain back into the crankcase anyway, and the minimal amount in it will mix and not even be noticeable with the heavier weight oil.
If the car has high mileage, use the "high mileage" oil. Most brands have this type oil. It has more additives to help with worn parts in engines.

Aug 30, 2013 | Cars & Trucks

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2001 buick regal ls... I have white smoke comming out of the tail pipe of the car, when I first start the car and let it run for a lil bit the hose connected to the thermostat gets tight... I took it to...


You're probably going to have to get professional help.
White smoke is usually burning coolant. In a previous post you said the intake gaskets were replaced, so if they are installed correctly, it could be a bad head gasket.
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Engine smoke


Hi Sean, I'm in agreement with Wes, unless you drove through a puddle or river or somehow got water on the hot parts of your engine? When you say there's smoke coming from the engine, where is it coming from? Is the smoke coming from the exhaust tail pipe or is something leaking from somewhere in the engine compartment and dropping onto something hot and burning off there? If its the latter, have a look around the engine where the 'smoke' is most dense and look for dampness from, for example a tappet cover, a leakage in the cooling system or from the power steering system. If the smoke is coming from the tailpipe, as Wes has said there can be several reasons. The catalytic converter converts the harmful gas into water droplets which become vapour and looks like steam from start up until the engine is partially warmed. If the smoke is blackish grey it will usually mean that too much fuel is being fed into the combustion chamber and is not being burned completely. In the event of that happening a fault code should be recorded, but as you have not told us the vehicle you have we don't know how old it is, or if it is fitted with diagnostics. If it has a cat it should have. If the smoke is bluish grey the indication is oil burn. To test that, have someone sit in the car, start the engine and hold the RPM at about 2000. You go to the rear of the vehicle and if the smoke is that colour (bluish grey) suspect either worn piston rings or valve stem oil seals. Don't keep the engine at that RPM for more than 30 seconds, as we don't want to upset the neighbours or damage the engine. Please get in touch with us and let us know more details Regards John (and Wes)

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1 Answer

1997 Nissan Altima Overheating


you are looking at a head gasket

May 16, 2017 | Nissan Cars & Trucks

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Troubleshooting for a 1998 park avenue


White smoke usually means water in the cylinders. I would say you have blown head gasket or intake manifold gasket. Could be something cracked or something I don't know about. Unless it is something I don't know about will not be simple or cheap to fix.

Jun 21, 2012 | 1998 Buick Park Avenue

1 Answer

What does white smoke from hood and sluggy dipstick mean?


That likely means that you've blown a Head Gasket. Don't drive the car any further. You can seriously damage the engine. You'll need some pretty serious engine work done. So, ask around for a reputable mechanic that knows how to rebuild engines or can install a replacement engine if needed.
http://en.wikipedia.org/wiki/Head_gasket

See if this video helps



Dec 16, 2011 | 1993 Jeep Cherokee Country

1 Answer

When i start the engine i have like a white smoke behind me is just huge.i drive a toyota land cruiser 2006 manual gearbox.i don t know what is the problem?is happen in every morning and 4 max 10 sec all...


smoke indicates a weak engine, if it is only at start or beginning few minutes of driving then hopefully it is rings only which is weakened and needs replacement, as per your note it seems only at start and the vibration is it only at cold start and what about if after running a more then 5 miles even you stop the car and start in few second does it still vibrate or no, please let me know

Sep 19, 2011 | 2006 Toyota Land Cruiser

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I have an XL 7 Suzuki 2002. When I drive on the freeway the car starts smoking, It is white smoke out of the front of the engine. I have had the car looked at and they don't see any issues with caps...


It\'s the tranny fluid, it comes out the blue switch on the drives side of the tranny and then spays on the exhaust and then burns white smoke.
When bad, It will only do this at speeds of 60mph + most shops will never find it and it\'s a small amount of fluid so it doesn\'t show up low when check. They need to be looking under the car not under the hood.

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