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If it's blue smoke it may be the piston rings or the valve guides are worn out.
If it's black smoke and you have a carburetor then it's using too much fuel, it's not getting enough air for as much gas that's being added. Could be the air cleaner is clogged real bad or the jetting is too rich.
If it's a diesel then the same thing, it may be running too rich or the injection timing is off a bit.
If its white smoke (steam), the engine is receiving unwanted coolant into the combustion area via a blown head gasket or cracked head.
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1993 Camry black smoke from exhaust pipe and idles rough?
Black smoke is caused by excessive fuel in the engine
Why does rx7 smoke lightly?
An Rx7 is a model of a car that Mazda makes. All cars can smoke lightly through the exhaust system. If the smoke that is coming out becomes excessive or black consult a mechanic.
Does the pistons cause the car to smoke?
They help burn the fuel creating the exhaust smoke but if it's excessive, it's usually burning oil or running too rich.
Why would white smoke suddenly pour out of exhaust in diesel engine after travelling for an hour accompanied by excessive revving of the engine?
The exhaust should be colorless. Smoke is created by an imbalance of the oil:fuel mixture. Black smoke is too much fuel (rich). White-blue smoke would be too much oil.
Can a turbo cause excessive steam to pass out of the exhaust?
For steam to come out the exhaust you probably have a bad head gasket or a cracked head. If the turbo had an oil seal fail it would cause blue smoke to come out the exhaust.
What is worst for you tobacco smoke or exhaust smoke?
what is the worst for your health breathing in tobacco smoke or exhaust fumes
How do you fix white smoke from exhaust pipe of C280?
All cars blow white smoke when they are cold especially on a cold morning .Worst case scenario if it blows excessive white smoke all the time is a blown head gasket
What is black smoke from exhaust?
emissions and exhaust
What is the cause of excessive oil consumption in a 2004 Chevy Malibu?
If you have blue-gray smoke coming out of the exhaust, then you have worn or damaged piston rings, or valve seals. If the smoke is excessive, a major engine overhaul will be necessary. If no blue-gray smoke is coming out of the exhaust, then look for a worn/damaged oil pan gasket, or a loose oil pan plug, or a loose oil filter. In either of these cases, you should see oil spots on the ground under the car.
Will a bad valve cover gasket cause smoke from exhaust?
No, it will not cause smoke from the exhaust pipe. However the leaking oil can drip on the exhaust manifold where it will be burnt and smoke.
A vehicle has excessive exhaust smoke During a road test the technician verifies the excessive smoke and finds that the automatic transmission shifts rough?
After the mechanic finds that the transmission is shifting rough, he will inform the customer of the problem and do further tests to determine the cause of the problem. After that he will take the appropriate steps to resolve the issue.
How do you know if an engine needs replacing?
A bad internal knocking sound; excessive smoke out of the exhaust pipe when running; overheating; no power on exceleration; these are a few of the first indications.
