No, just replace it.
Back by the tank.
19 lbs
located on the bottom right hand side of the fire wall
Spark plugs, igniton wires, fuel filter and air filter.
located at the driver side kick panel,
4.3 litres including the oil filter
According to the 2003 Ford Escort Owner Guide : ( 48.5 litres / 12.8 US. gallons )
How do you change a fuel pump on a Ford escort ZX2
On the drivers side firewall. Underneath the brake fluid reservoir
The fuel filter is on the driver's side at the bottom of the firewall. It takes a special tool to take the gas hoses off. It is a little clip release tool made of plastic and only costs about $2 at the auto parts place.
The Ford Focus ZX2 was produced from the years 1998 to 2003. The low end service port in a 2003 Ford Focus ZX2 is located behind the front of the right front tire.