Skip the auto shop - Our mechanics make house calls

Q: Muffler smoke after doing repairs on the car

asked by on

After I had some repairs done on the vehicle, I started it up and drove it around for a while. Then, there was a lot of smoke all of a sudden, coming from the muffler. I had the transmission oil replaced. Also, I changed the filter and oil, and had the spark plugs and air filter replaced. The problem happened after I did this. What did I do wrong and what could be the damage?

A: Most likely, the work you had done and the ...

Most likely, the work you had done and the smoke are unrelated. Black exhaust smoke indicates a rich air fuel mixture and can be caused by problems like a leaking fuel injector or faulty engine sensor. White exhaust smoke indicates coolant is leaking into the combustion chamber and can be caused by problems such as a leaking head gasket or cracked head. Finally, blue-gray smoke indicates that the engine is burning oil. This can be caused by issues such as worn valve guides or piston rings. I suggest you have a trained professional, such as one from YourMechanic, diagnose the smoke that's coming from the car firsthand.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Car has no power after sitting over night.

It sounds like your 2010 Honda Civic may be experiencing what is known as a catastrophic failure of the blower motor. This type of failure may place a drain on your vehicles battery, one of the symptoms you are experiencing....

Q: Car cranking, but not starting

Hi there! There are a few possible causes for your concern. Your engine needs several things in order to run properly: Fuel from the fuel tank, spark from the ignition system to ignite the fuel, and pressure in the cylinders...

Q: Camaro iroc z sat for 17 years... Won't start

The fuel in the tank is bad from sitting so long. The entire fuel system may need to be flushed and the carburetor rebuilt. This means that the fuel tank should be removed and cleaned. The fuel pump should also...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...