All Subarus use a cartridge fuel filter, located in the fuel line. The filter is the disposable type which cannot be cleaned. It should be replaced every 12 months/12000 miles (20,000 km) on pre-1980 vehicles and 15 months/15000 miles (25,000 km) whichever occurs first, on 1980 and later vehicles.
REMOVAL & INSTALLATION
On the carbureted models, the fuel filter is located in the engine compartment.
- Disconnect the negative battery cable. Loosen, but DO NOT remove, the two hose clamp retainers, located at either end of the filter.
- Work the hoses from the filter necks.
- Snap the filter out of it's mounting bracket.
- Discard the old filter.
- Install the new filter in it's mounting bracket.
- Check the hoses for cracks and wear.
- Install the hoses on the filter necks and tighten the hose clamps securely.
- Connect the negative battery cable.
- Start the vehicle and check for leaks.
The fuel filter is located on a bracket in the engine compartment on the front-left fender.
- Reduce the fuel pressure by performing the following procedures:
- Disconnect the electrical wiring connector from the fuel pump.
- Crank the engine for more than five seconds. If the engine starts, let the engine run until it stops.
- Turn the ignition switch OFF and reconnect the electrical wiring connector of the fuel pump.
- Disconnect the negative battery cable. Loosen the hose clamp screws and pull the filter from the bracket.
- Install the filter in the bracket.
- Install the hoses on the filter and tighten the hose clamps securely.
- Start the engine and check for leaks.