Q: Car smoking and smelling

asked by on

My car will start to smoke and have a weird smell after I start driving it for a while.

If the smoke coming from the tailpipe is white and has a sort of sweet smell, it is coolant getting into the exhaust system, due to one of the engine head gaskets being blown, and leaking coolant into one of the engine cylinders. All spark plugs should be removed and inspected to see if coolant is getting a plug wet. A pressure test will reveal any leaks. A combustion leakage check can be done to see which cylinder is the cause. I recommend having a mechanic, such as one from YourMechanic, run a diagnostic on the smoke coming from your car, and recommend the best path to repair.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car smoking and smelling

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

Get a quote

What others are asking

Q: Car starts, but not going sometimes

It sounds to me like the transmission is not engaging right away. The most common cause for this would be low transmission fluid. I would check it asap, and if it is low, perform a transmission fluid service. More damage...

Q: timing gear sprocket

Hi there. The service we offer that is applicable in this case can be located by clicking this link. Once you're on this page, enter your vehicle information and location and we will send you a price estimate for service...

Q: White smoke expelled from exhaust

The excessive fuel condition is from the exhaust regeneration system malfunctioning and should be diagnosed following updated diagnostic procedures for the check engine codes received. Follow technical service bulletin 09-10-02 for an updated procedures directive.

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...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...