2004 Chevrolet S-10 Blazer Change a Fuel Filter

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The fuel filter in the Chevrolet S-10 Blazer is an in-line filter and is located along the fuel lines under the driver-side door. The fuel filter protects your fuel system from any debris that may be in the fuel tank. Changing the filter every 30,000 miles will help to improve the fuel economy and increase engine performance. The filter will only take a few minutes to access and replace.

[edit] Tools Used

Tools
Line wrench set
Socket wrench
Socket set
Fuel filter

[edit] Change a Fuel Filter

  • Park the truck on a flat and level surface. Set the parking brake to ensure the truck does not roll.
  • Open the hood for access to the fuse panel. Locate the relay for the fuel pump. Pull the relay out by hand.
  • Start the truck and allow it to run until it stalls. The pressure is relieved from the fuel line.
  • Locate the fuel filter under the driver side of the truck. The fuel filter will be along the frame rail under the driver-side door.
  • Remove the inlet line by holding the nut attached to the filter with a line wrench. Loosen the fuel connector nut with a second line wrench. Pull the fuel line away from the filter. Remove the outlet line the same way.
  • Slide the filter out of the mounting bracket. The mounting bracket can be loosened with a socket wrench to relieve the grip on the filter.
  • Slide the new filter on to the mounting bracket. Ensure the arrow on the filter points toward the front of the truck. The arrow on the truck signifies the direction of the flow of fuel.
  • Tighten both of the fuel lines onto the filter. Thread the lines onto the filter by hand. Tighten with a line wrench while holding the stationary nut with a second line wrench.
  • Insert the fuel pump relay back into the fuse panel. Close the panel.
  • Start the truck and allow it to idle for five minutes. Observe the fuel filter to ensure it does not leak.

[edit] Tips & Warnings

  • The filter can be purchased at any automotive-parts store.
  • Gasoline is highly flammable so extreme caution is advised.
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