Buick 25055455 Strainer,Fuel Sender Fuel

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The filter and spring.

Ensure that the new filter is facing the correct direction.

All models employ an in-line fuel filter located on the left side frame rail, under the bed. To replace it, first relieve the fuel system pressure. Place a drain pan under the filter area. On most models, the fuel filter is an inline type mounted inside the frame rail. Use back-up wrenches when loosening the fuel line fittings at the filter. Use a flare-nut wrench to disconnect the fuel lines from the filter, and be sure to use a back-up wrench to hold the filter. Be prepared to deal with residual fuel when loosening the fittings. On some later utility models, the fuel filter is in a cartridge type housing. Unscrew the housing and let the fuel drain, then clean the inside of the housing. Install the filter as it was removed. On cartridge type systems, lightly oil the cartridge gasket and put a new filter into the housing. Tighten the housing 2/3 of a turn after the gasket makes contact. After completing the work, check the area carefully for fuel leaks. If the fuel filter was clogged, the fuel tank may have dirt in it and may need to be cleaned.

The fuel filter is located on the left side frame rail, under the bed.

The fuel inlet nut.

The fuel filter is located at the left rear of the engine on TBI engines and attached to the cylinder head. On MPFI engines, it is connected to the frame rail or rear crossmember near the fuel tank.

The fuel inlet fitting should be held with a wrench.

Ensure that the new filter is facing the correct direction.

For Four-cylinder engine,Loosen the threaded connectors on both ends of the fuel filter with a flare nut wrench. Disconnect the threaded fittings at both ends of the fuel filter with a flare nut wrench and a backup wrench to hold the filter. Disconnect both ends. Loosen the clamp bolt underneath the filter. Remove the old filter and discard it. Install the new filter. Make sure that the arrow indicating the direction of fuel flow points toward the fuel injection system. Reconnect the fuel line fittings to both ends of the filter. Snug them finger tight. Tighten the clamp bolt underneath the filter. Tighten the fuel line fittings securely. V6 engine: Relieve the pressure in the fuel system before disconnecting any fuel lines. Raise the rear of the vehicle, support it securely on jackstands and block the front wheels. Place a container under the fuel filter to catch any spilled fuel. Loosen the fittings on either side of the fuel filter. Loosen and remove the fuel line fittings, then remove the filter clamp bolt, allow the fuel in the filter to drain, then remove the lines from the filter. A backup wrench must be used on the fuel filter canister to prevent it from turning. Remove the fuel filter clamp bolt and slide the filter out of the bracket. Position the new filter in the bracket. The arrow on the canister must be pointed in the direction of fuel flow. Install, but do not tighten, the bracket clamp bolt. Start the fuel line fittings on either side of the filter, but do not tighten them at this time. Tighten the fuel filter clamp bolt. Tighten the fuel line fittings, using a backup wrench to keep the filter from turning. Cycle the ignition switch On and Off several times at two second intervals to pressurize the fuel system, then check for fuel leaks.