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Fuel System Problems

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How Electronic Fuel Injection Works

On December 03, 2018

With a carburettor air and fuel are mixed together as air is pulled through the carburettor by the engine. The air/fuel mixture then travels through the intake manifold to the cylinders. One of the drawbacks of this approach is that the intake manifold is wet (contains droplets of liquid fuel) so fuel can puddle in the plenum area of the manifold when a cold engine is first started. The twists and turns of the intake runners can also cause the air and fuel mixture to separate as if flows to the cylinders, resulting in uneven fuel mixtures between cylinders. The center cylinders typically run slightly richer than the end cylinders, which makes tuning for peak fuel economy, performance and emissions more difficult with a carburettor. ...

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How to Replace an Electric Fuel Pump

On December 03, 2018

The electric fuel tank on most vehicles with electronic fuel injection is located inside the fuel tank. If there is no access panel under the back seat or in the trunk of the vehicle, it means you will have to lower the fuel tank from the vehicle to replace the pump. This can be a difficult job, so you may want to take your vehicle to a service facility for repairs rather than trying to do it yourself. ...

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