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On Now:

1:30PM - 3:00PM
Second-round play in the inaugural NW Arkansas Championship in Rogers, Ark. Last year's event lasted only 18 holes due to heavy rain, and was considered an "unofficial" tournament. The purse for this event is $1.7 million.
3:00PM - 6:00PM
Third-round play in the second AT&T National at the Congressional Country Club in Bethesda, Md. This event features a field of 120 players and benefits the Tiger Woods Foundation. Woods serves as host for the tournament.

Fuel System

Carburetors
The carburetor mixes air with fuel so that it burns more easily in the engine. A vacuum caused when your car's pistons make their downward stroke pulls air into the carburetor.
Fuel filters
Even the cleanest gasoline may contain small amounts of water and dirt. Your car's fuel filter helps protect fuel system components by removing these contaminants before they get to the engine.
How fuel injection works
Fuel injection is the method of mixing fuel and air that's used in virtually all newer model engines. Fuel injectors use electronic controls to spray precise amounts of fuel into the intake air.
Water separators and fuel filters
Because they're especially sensitive to water in the fuel, diesel engines have a special kind of filter called a water separator. Even a tiny amount of water can wreak havoc on a diesel engine.





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