1. Autos
Send to a Friend via Email
You can opt-out at any time. Please refer to our privacy policy for contact information.

Black Smoke

Black Smoke Coming From Exhaust Pipe

By

Symptom: Black smoke from the exhaust. You notice black smoke coming from the exhaust when you start your car. The smoke may or may not disappear after the car is warmed. If it is, it is less noticeable. Engine may or may not be running rough or misfiring.

Possible causes:

  1. If you have a carburetor, the carburetor choke may be stuck closed.
    The Fix: Repair or replace choke.
  2. Fuel injectors may be leaking.
    The Fix: Replace fuel injectors.
  3. You may have a dirty air filter: Replace the air filter.
  4. There may be some other type of ignition problem.
    The Fix: Check distributor cap and rotor. Ignition module may be bad.
  1. About.com
  2. Autos
  3. Auto Repair
  4. Troubleshooting
  5. Black Exhaust Smoke Diagnosis

©2014 About.com. All rights reserved.