Q: Engine smoked and had unpleasant odor

asked by on June 28, 2016

I heard a loud bang and thought it came from the tires. But it wasn't from the tires - it was from the engine which had smoke coming from it. When I opened the hood of my car, there was both an odor and the smoke billowing from the engine. I got back in the car and turned the engine off and the smoke stopped. Then I turned the car back on. Everything seemed normal again so I started driving. But the engine light came on after driving around 5 miles. Fortunately I was near a gas station and I pulled over thinking it was probably a leak of water. I checked and it had enough water, but I put some more anyway. The engine light stayed on. I headed home and then would go to the dealership tomorrow. However, during my way home the car turned itself off. It wouldn't start again. What caused this and what will solve the problem?

Check Engine Light is on Inspection $79.99 - $99.99 Get a Quote

Many different things can cause a bang noise and smoke to come from the engine. The most likely issue would be an oil leak, low oil level, engine mechanical issue, or a faulty water pump. The Check Engine Light will help point a technician to the root cause of the problem. I’d suggest getting help from a qualified technician, such as one from YourMechanic, who has the tools and experience to diagnose your Check Engine Light and perform any repairs that are required to get your car running normally again.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

I have an 08 Hyundai veracruz and while driving it over heated and shut off. The [radiator](/topics-radiator-hyundai/) was empty and had a crack, all of the fluid leaked out.

Everytime i accelerate my car makes a squealing noise

You may have one of your serpentine belt pulleys locking up or the belt tensioner is bad. Check these out to see what one is causing the problem. It may be the water pump also going bad and should have...

Tried starting car with alarm on, now flashing yellow key light and won't start.

It seems as if your vehicle thinks you are trying to steal it. This could be due to a number of different things. It is possible that the chip in your key if it has one could not be being...

Car seems to idle high

This may be a sign of a vacuum leak. A vacuum leak can be one of the most frustrating and difficult problems to diagnose. High idle speed is a common sign and stalling is another. Confirmation of an engine vacuum...

Clutch chattering when car is hot

Hi there. Replacing the clutch only 20,000 miles ago, there shouldn't be issues already. Assuming, proper procedure was followed at the time of clutch replacement, ie; the flywheel was surfaced, the throw-out bearing sleeve properly lubricated, pressure plate bolts evenly...

Valve cover/gasket replaced car is now shuddering I shop liable

The labor to replace the valve cover gaskets should only be 3.0 hours. The list dealer list price for gaskets are only $50. It sounds like you were charged double of what you should of been charged. You most likely...

My temperature is reading cold, almost to the bottom. Is this normal?

Hey there. The cold reading could mean that your thermostat is stuck open or the cooling fan is running all of the time. It could also mean a problem with the sender or gauge. Have a mechanic diagnose the cause...

Door lock & unlock on their own

I would recommend taking the battery out of your key fob to see if that makes a difference. It is possible that there could be a short within your key fob that is causing the locks to jump. This is...

Ticking noise in engine

Hello. The sound of ticking is not normal in most cases. A technician will have to listen to the ticking sound in person to determine if the noise is normal or not. Oftentimes a ticking sound can occur from low-grade...

Related articles

Symptoms of a Bad or Failing Exhaust Manifold Gasket
If the engine is noisy, causing performance issues, or smells burnt, you may need to replace the exhaust manifold gasket.
Top 10 Ways to Extend the Life of Your Car
Every driver wants a car that lasts a long time. Make your car last longer by checking your motor oil, parking in the shade, and keeping it clean.
What Is the Difference Between a Diesel and a Gasoline Engine?
Gasoline and diesel engines use similar components but ignite fuel differently. Gasoline engines use spark plugs, while diesels rely on compression.