Pontiac 25171792 Filter Kit,Fuel

The fuel filter is behind the fuel inlet on the carburetor. Next, disconnect the fuel line from the filter nut, remove the nut, and the filter and spring. For fuel-injected engines, the filters are on the frame rails or rear cross member. Then, depressurize the fuel system, disconnect the battery cable, and remove the filter and O-rings.

To begin, relieve the fuel system pressure. Fuel injected models have a stainless steel in-line fuel filter, which is located at the left rear of the engine on TBI engines and attached to the cylinder head. On MPFI engines, the fuel filter is connected to the frame rail or rear crossmember near the fuel tank. With the engine cold, place a container or rags under the filter. Remove the lines from the ends of the filter, then take out the attaching bolts and separate the filter. Install the new filter, ensuring it is facing the correct direction. Finally, reverse the steps for installation.

For carburetor-equipped vehicles from 1985, the fuel filter is located inside the fuel inlet nut at the carburetor, made of pleated paper or porous bronze, and cannot be cleaned or reused. The procedure should be performed with the engine cold and the engine cover removed, using open-end wrenches for the fuel line nuts and flare nut wrenches if available. Begin by removing the air cleaner assembly, noting or tagging any vacuum hoses that need to be disconnected. Follow the fuel line from the fuel pump to the carburetor, placing rags under the fuel inlet fittings to catch any spilled fuel. Use the proper size wrench to hold the fuel inlet nut while loosening the fitting at the end of the metal fuel line, ensuring the inlet nut remains secure. After disconnecting the fuel line, move it aside without kinking it, then unscrew the fuel inlet nut carefully, taking care not to lose the thin washer-type gasket or the spring behind the fuel filter. Compare the old filter with the new one for length and design, reinstall the spring in the carburetor body, place the new filter in position, and tighten the nut securely without cross-threading. Reconnect the fuel line to the fuel inlet nut, using a back-up wrench to avoid cross-threading. Start the engine and check for leaks, addressing any issues with stripped threads by using thread sealing tape or obtaining a repair kit if necessary. For fuel-injected vehicles, the fuel filter is an in-line type located under the vehicle along the left side frame rail near the engine. Begin by performing the fuel pressure relief procedure, then raise the vehicle securely on jackstands and place a container or rags under the fuel filter. Using two wrenches, disconnect the fuel lines from the filter, and detach the filter from the bracket. Installation is the reverse of removal, ensuring the flow indication arrow on the filter points towards the engine, and check for leaks after starting the engine.

The fuel filter on diesel engines is located at the rear of the engine.

The in-line fuel filter is typically located downstream of the electric fuel pump and is mounted on the underbody of the vehicle.

The end of the filter with the hole should face toward the inlet nut.

The in-line fuel filter is typically located downstream of the electric fuel pump and is mounted on the underbody of the vehicle.

Unscrew the fuel line-to-fuel filter fittings using two wrenches.

Install the new filter and connect the fuel lines securely.

Back-up wrenches should be used.

The fuel filter is made of pleated paper or bronze, depending on the model.

After the lines are detached, check the fittings for damage and distortion, and ensure they are reattached to the new filter, using new clips if packaged with it.

Reinstall the spring into the carburetor body after inspecting it for damage.

Back-up wrenches should be used.

A container, newspapers, or rags.

Ensure that the new filter is facing the correct direction.

The fuel inlet fitting should be held with a wrench.

The fuel filter is made of pleated paper or bronze.

Apply a few drops of clean engine oil to the O-rings to ease reassembly.

Use two wrenches to loosen the fuel lines and detach them from the filter.

Begin by loosening the fittings on either side of the fuel filter.

The new filter is placed in position behind the spring, with a rubber gasket and check valve at one end pointing away from the carburetor.

One wrench steadies the filter while the other unscrews the fuel line nut.

The fuel inlet nut.

Remove the lines from the ends of the filter, then take out the attaching bolts and separate the filter.