Engine backfire is caused by an imbalance in the air-to-fuel ratio of the vehicle. Backfires occur in one of two places. A backfire in the intake manifold is caused by a ratio that is too lean (not enough fuel). A backfi... More »

When a motorcycle engine has an emission system malfunction, such as an exhaust leak or a moment of running rich or running lean, backfire occurs as a result. When an engine is running rich, there is more fuel present th... More »

There are several reasons that can cause backfire in an Edelbrock carburetor, including high-alcohol gasoline, carb adjustment level, engine temperature, speed reduction rate, muffler construction and the carburetor's se... More »

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Black smoke from a diesel engine is caused by an unbalanced air-to-fuel ratio. Either not enough oxygen is being added to burn the fuel, or too much fuel is in the mix. Black smoke is one of the most common smoke issues ... More »

When the explosive noise of a car backfire occurs, it usually indicates that the air-to-fuel mixture is unbalanced or that a problem exists with the vehicle's timing. A backfire is the result of fuel burning outside to t... More »

There are several reasons that can cause backfire in an Edelbrock carburetor, including high-alcohol gasoline, carb adjustment level, engine temperature, speed reduction rate, muffler construction and the carburetor's se... More »

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Engine block heaters assure the engine is warm enough to start. Diesel fuel is harder to start in cold weather, therefore engine block heaters are helpful in colder regions. More »

www.reference.com Vehicles Car Parts & Maintenance Engine