CAUTION:Make sure that the fuel line remains in contact at both ends until both unions nuts have been unscrewed and the area around the joints thoroughly cleaned.
CAUTION:Make sure that the high-pressure fuel supply line remains in contact with both the fuel pump and the fuel rail until both unions have been detached and cleaned.
CAUTION:Make sure that all openings are sealed. Use new blanking caps.
Vacuum foreign material from the high-pressure fuel supply line, the fuel pump and the fuel rail.
Refer to: Fuel Injection Component Cleaning (303-04D Fuel Charging and Controls - 3.2L Duratorq-TDCi (Puma) Diesel, General Procedures).