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 Turn 21 today

Hey, you're in the vehicle / car zone--YOUR HANDYMAN ZONE!

Cars / Trucks / Vans Category: Emission System

Problem:

Black-smoke exhaust exits the tailpipe.

Tools / Materials (See Below for Applicability):

Solution:

If your vehicle's tailpipe gives off black smoke each time you start the vehicle, the engine is flooding with excess gas, as too much gas has entered into the fuel mixture of the fuel system.  The following may be probable causes of this engine-flooding problem that you should consider checking:

  • The engine computer may be malfunctioning;

  • The throttle body may be dirty;

  • The throttle position sensor may be misaligned;

  • The air rate is not set correctly;

  • The exhaust gas recirculation (EGR) valve may be malfunctioning;

  • The idle air control may be malfunctioning;

  • The fuel pressure regulator may be malfunctioning;

  • The air flow sensor may be malfunctioning;

  • The oxygen sensor may be malfunctioning;

  • The crank angle sensor may be malfunctioning; or

  • The fuel-return line is hampered in some way.

Any one of the above can be the cause of your vehicle's problem, so it would be best to pay attention to the above probable causes when attempting to diagnose and fix the problem.

Ed the Handyman

            &

Your Handyman Zone Team

 

 

                                                         

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