Dodge Colt/Challenger/Conquest/Vista 1971-1989 Repair Guide

Fuel Filter



Carbureted Engines

The fuel filter should be replaced, or at least checked for clogging every 12,000 miles. The fuel filter is of the in-line type and is located on the left side inner fender panel or low center of the firewall, on mechanical fuel pump equipped cars. On models equipped with electric fuel pumps, the fuel filter is located in the trunk, on sedan models, or in the left rear wheelhouse, on station wagons. Removal of the air cleaner assembly or battery and battery tray may be necessary, depending on year and model.

Fuel Injected Models

On models equipped with fuel injection, relieve fuel system pressure before replacing the filter. An electric fuel pump is used on these models and the filter is in the engine compartment. A connector, for checking the fuel function, is located under the battery tray. With the engine running, disconnect the harness, when the engine stops no pressure will remain in the system.

To remove the filter, loosen the hose clamps at both ends of the filter or unscrew the fittings and remove the fuel lines from the filter ends. Unclip the filter from the mounting bracket. Install a new filter. Start the engine and check for leaks. If a clogged filter is suspected, remove the filter and blow compressed air through the inlet and outlet fittings, reinstall the filter. Replace the old filter if needed.