Q: Check engine light/emissions workshop! blowing black smoke while accelarating, among other acceleration issues.

asked by on

My car is blowing a lot of black smoke while accelerating and when going up hills or accelerating to get onto the freeway it stutters/has trouble getting up to speed. Last night it would not accerlate past 60mph, even though I had my pedal to the floor. Recently got the check engine light, with the Emissions workshop message. thank you

My car has 320000 miles.
My car has an automatic transmission.

Hello. Black smoke is usually the result of an excessively rich condition. The black smoke is a result of excessive fuel from a rich condition that was not burned in the combustion chamber, burning up afterwards, in the exhaust pipe, and producing black smoke. This can be caused by many things. If the Check Engine Light is on, I would recommend you have the trouble codes retrieved to see if they may shed some light on what the issue may be. A few common causes of black smoke are a faulty fuel pressure regulator, faulty injectors, or a problem with the engine management system. If the fuel pressure regulator, or one or more of the injectors fails, then it may be possible that extra fuel is being fed into the engine, causing a rich condition. Have an expert mechanic, like one from YourMechanic, test the vehicle and diagnose the smoke and acceleration issues so that this can be properly addressed.

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. Check engine light/emissions workshop! blowing black smoke while accelarating, among other acceleration issues.

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: My 2002 vw passat is trembling while parked , trembling during acceleration and at speeds under 40 mph . can u give me some advice

An engine shake can be caused by a number of reasons. A broken or disconnected vacuum hose can effect the air/fuel mixture enough to cause a "lean misfire" and make the engine shake. The VW / Audi 2.8ltr is known...

Q: Car died while driving. I can start it but it will die after 2-3 seconds. 2004 Honda Civic.

If the car is starting but immediately stalling typical causes for such immediate stalling are a faulty mass airflow sensor, faulty engine coolant temperature switch/sensor (typically at cold start only), faulty camshaft or crankshaft position sensors, worn spark plugs, wires...

Q: Why does my motor go from running to just dead?

There are no recalls or technical service bulletins (TSB) for the stalling while driving complaint, however there have been other owners who've had similar drivability issues. The fuel pump relay may have an intermittent open circuit, causing you to lose...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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 Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.