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What Is It?

Your car’s fuel system works with the rest of the engine control system to deliver the best performance with the lowest emissions. Check your car’s fuel system regularly or immediately if you sell gas or suspect a problem.

What Does It Do?

The fuel system transfers fuel from the fuel tank and pass it through a fuel filter for cleaning before it arrives at the injectors. A pressure regulator controls fuel pressure to ensure good engine performance under a variety of speed and load conditions. Fuel injectors, when activated; spray a metered amount of fuel into the engine. Some vehicles use a return line system to return unused fuel back to the tank.

It’s best to check your car’s fuel filter at every oil change and replace it every two years or 24,000 miles

Typical Wear And Tear

Intervals for fuel system maintenance may be influenced by:

• Fuel Quality
• Vehicle age
• Mileage
• Operating conditions
• Maintenance history


• Clogged or worm fuel injectors
• Poor fuel economy
• Vehicle won’t start
• “Check Engine” light is illuminated

Your car's fuel system includes:

1. Pressure regulator
2. Fuel injectors
3. Lines/hoses
4. Fuel filter
5. Fuel tank
6. One or more fuel pumps

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