Q: Black smoke coming out from exhaust and it wont accelerate, there is no power

asked by on

my car is running for half an hour and suddenly black smoke coming out from exhaust and when I accelerate there is no more power it wont accelerate anymore.

My car has 155345 miles.
My car has an automatic transmission.

The black smoke indicates you have a rich fuel condition happening in your fuel intake system. This means that the fuel being supplied to the motor is too much in relation to the air supplied creating an imbalanced air/fuel ratio being supplied to the motor. When this happens, you may notice a fuel smell and a lack of power as you describe. This can happen for a few different reasons such as a faulty mass air flow sensor, leaking or dirty fuel injectors and many others. I would recommend having an expert form YourMechanic come to your location to diagnose your vehicle’s running condition.

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. Black smoke coming out from exhaust and it wont accelerate, there is no power

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: Fluttering and bogging out when accelerating

Hello. Fluttering and bogging can be caused by a wide variety of issues. A few common causes are issues with the fuel, ignition, or engine management systems. If there is an issue with any of the components, such as the...

Q: Air idle control valve bad? Loss of power and sluggish

You should have a second opinion on the part that needs replaced. The engine has a throttle body that is electronic and controls power. There are other sensors involved that can control the loss of power. You should have the...

Q: Q: Brake lights not working

Yes, the fuses are a good start in a diagnosis, but if a fuse is blown, then a deeper problem may exist. The most common problem in your case is the brake light switch not making contact. I recommend that...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...