What Do I Do If My Car Starts Smoking But Not Overheating?


To find out why your vehicle is smoking but not overheating, you’ll need to have professional auto mechanics inspect your car. Mechanics will have the knowledge and the tools to find the cause of the smoke and get the problem fixed.

Why is my car smoking for no reason?

Smoke often leaves car engines as a result of overheating. This can be caused by faulty wire casings, heated residues on the engine block and overheated liquids including oil, transmission fluid and brake fluid. There may also be a fault in your coolant system, or your engine may not have enough lubricant.

Why is my car smoking from under the hood?

The most common cause of smoke under the hood is small amounts of motor oil or other fluids accidentally spilled or leaking from a bad gasket or seal onto a hot engine or the exhaust system. Those other fluids may include engine coolant, power steering, brake and transmission fluid, even window washer solvent.

Why is my exhaust smoking white but not overheating?

Cracked cylinder head and coolant leaking.

Coolant leaking is the second most common cause of a car blowing white smoke (but not overheating). The root of the coolant leak is a crack in the cylinder head (or even engine block). The damage doesn’t even have to be big.

Will car smoke if low on oil?

Generally, blue smoke is caused by oil seeping into the engine and being burned along with the fuel. Your engine will be low on oil, as well. There is also the possibility that there is an external oil leak, and the oil is dripping onto the exhaust system.

Can I drive my car if it’s smoking?

It could be overheating, and if it is, you need to stop driving as soon as you can. You could end up seriously damaging your vehicle if you choose to just ignore it. If the smoke smells sweet, then there is an issue with your coolant. But if it smells like fuel, there might be an issue with your fuel system.

What should I do if my car is smoking?

If you notice smoke coming out of the vehicle, do not keep driving. Pull over to the side of the road as soon as you can and shut the engine off. If there’s also low oil pressure, see if you can add some fuel to the car and restart the engine.

What causes GREY smoke from exhaust?

Blue or Grey Smoke

If the smoke from the exhaust pipe is either grey or bluish-tinged, it generally means that your engine is burning oil inside the combustion chamber. Burning oil could be due to a number of causes, from leaky valve seals to bad piston rings.

Can low coolant cause smoke?

Low coolant can sometimes cause a head gasket on your engine block to blow. If this happens, you may notice smoke emitting from the engine or tailpipe, a loss of power, engine knocking sounds, or decreased efficiency.

What does GREY smoke mean?

Grey smoke can indicate that the fire is slowing down and running out of materials to burn.

Can low oil cause white smoke?

So Can Low Oil Cause White Smoke? A. No, it cannot. Unrelated to the fluid’s level, if oil does make it into the combustion chamber, you could see blue-tinted smoke coming from your exhaust.

Why is my car smoking and smells like burning rubber?

Sometimes, a burning rubber smell could be coming from an oil or fluid leak, or even a damaged or worn out drive belt. If you smell burning rubber, head to your nearest Firestone Complete Auto Care for diagnosis and expert engine repair. Loose belts and hoses don’t get better with time.

Does white smoke always mean blown head gasket?

White smoke billowing out of your exhaust means that coolant is likely leaking into the cylinders. This usually happens when there has been a breach in the head gasket, which makes the coolant create this white steam.

How do you fix GREY smoke from exhaust?

To fix blue or gray smoke: The easy way is to add a bottle of Motor Honey Oil Treatment to your motor oil with each oil change. It’s specially designed to reduce oil burning and stop smoky exhausts.

How do you fix white smoke from an engine?

This generally happens because of a cracked or leaking head gasket, which allows coolant to seep into your cylinders. In extreme cases, you will need to replace your head gasket. At the first sign of white smoke you can try head gasket repair treatment to seal the leak before you do serious damage to your engine.

Can a dirty oil filter cause smoke?

Exhaust That Is Dirty

Finally, a clogged oil filter can affect your automobile’s exhaust. You shouldn’t see smoke coming out of your tailpipe at all, except maybe a little white smoke when it’s cold outside.

Can Worn spark plugs cause smoke?

It is possible for faulty spark plugs to cause your car to blow white smoke out of the exhaust.

What Colour is fuel smoke?

Black smoke is an indication that your air-fuel mixture is running rich. Gas engines are designed to run with just the right combination of fuel and air to create the most efficient conditions for combustion when spark is introduced. When the fuel-air ratio skews to too much air, it is said to be lean.

Can I drive my car if there is white smoke?

Can I Drive My Car With White Smoke? Smoke in the white area is a sign of overheating, so if it is, you should stop driving as soon as possible. Ignore it and you could damage your vehicle in the process. Your coolant may be at fault if the smoke smells sweet.

What does a lot of white smoke from exhaust mean?

If your exhaust system is producing a thick, white smoke – you may have a problem. Many times, this thick smoke is due to the likes of a blown head gasket, damaged cylinder, or a cracked engine block, which is causing coolant to burn.

Can Low brake fluid cause smoke?

The brake fluid can leak into the engine and cause smoke when you first start the motor. It sounds like you have a more serious problem if you are loosing that much fluid.

Is it normal for smoke to come out of exhaust?

If your car is well maintained and serviced regularly, then any visible emissions from your exhaust are unlikely to be anything of concern, but it is well worth checking anyway. The real issue is with cars that have been poorly maintained, as smoke from the exhaust could be a clear sign of neglect.

What color is the smoke when a car is burning oil?

Blue/gray exhaust smoke means there’s likely an oil leak and your engine is burning oil. Time to have a qualified technician check things out. The leak could be caused by several issues like leaking valve seals, damaged piston rings, or worn cylinder walls.

How can you tell if there’s air in your coolant system?

  • Overheating during normal driving.
  • Heater not functioning correctly.
  • Reduced performance.
  • Radiator leakage / losing coolant quickly.
  • How do I know if my car is burning coolant?

    Engine overheating or fluctuating coolant temperatures are also indicators of coolant loss. External coolant leaks can be identified by residual coolant odor after shutting down the engine, coolant smoke or steam wafting from the engine compartment or drips, puddles and stains on the garage floor.

    When I start my car a puff of white smoke?

    But white smoke usually is caused by vaporized coolant, which often is the result of a blown head gasket. At the middle of the engine, you have the cylinders, which combust gasoline and air. All around those cylinders are passages for coolant, to keep the cylinders from overheating.

    What color is coolant smoke?

    White/Gray Exhaust: White exhaust smoke is an indication that coolant is burning in the combustion chamber.

    What does burnt coolant smell like?

    A sweet smell in a car is usually associated with engine coolant. Engine coolant is treated ethylene glycol, which smells sweet. If you notice the smell in your car, there’s most likely a coolant leak, which can be caused by the engine overheating and/or having other performance issues.

    What does burnt engine oil smell like? (video)

    https://www.youtube.com/watch?v=9tRreuZuag0

    What are the first signs of a blown head gasket?

  • Engine Overheating.
  • White Smoke From Tailpipe.
  • Low Coolant Level.
  • Rough Idle/Engine Knock.
  • Contaminated Engine Oil. We know that oil and water don’t mix, but if coolant gets into the oil in your engine, the resulting mixture loses its lubricating qualities.
  • What color is head gasket smoke?

    One of the telltale symptoms of a blown head gasket is white smoke from the exhaust. It’s important that the smoke is white because blue or black smoke can indicate a rich running engine or an engine that is burning oil.


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