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Pinpoint Tests Fuel filler nozzle Fuel tank ventilation hose or pipe Fuel tank ventilation hose or pipe * * CHECK the fuel tank ventilation hose for obstruction or damage. INSTALL a new fuel tank * Fuel tank filler pipe or hose blocked. Fuel tank filler pipe or hose collapsed. * * CHECK the fuel tank filler pipe or hose for obstruction or damage. INSTALL a new fuel tank * Fuel gauge indication. * CHECK the fuel level in the fuel tank. CHECK the fuel indication system. For additional information, Instrument Cluster (413-01 Instrument Cluster, Diagnosis and Testing). * Fuel filler nozzle at fuel filling station not * VERIFY condition by using a known good fuel filler nozzle. * Fuel loss after Fuel tank filler pipe or hose leaking. * CHECK the fuel tank filler pipe and hose for evidence of a fuel leak. If a fuel leak is evident, * Fuel tank leaking. * CHECK the fuel tank for evidence of a fuel leak. If a fuel leak is evident, INSTALL a new fuel tank. * Fuel tank ventilation pipe or hose leaking. * CHECK the fuel tank ventilation pipe and hose for evidence of a fuel leak. If a fuel leak is evident, * PINPOINT TEST A : AIR INGRESS INTO THE FUEL LINES - VEHICLES WITH TEST CONDITIONS DETAILS/RESULTS/ACTIONS A1: CHECK FOR AIR INGRESS INTO THE FUEL SYSTEM WARNINGS: Do not smoke or carry lighted tobacco of any type when working on or near any fuel related components. Highly flammable mixtures are always present and may ignite. This procedure involves fuel handling. Be prepared for fuel spillage at all times and always observe fuel handling precautions. Failure to follow this instruction may result in CAUTIONS: Diesel fuel injection equipment is manufactured to very precise tolerances and fine clearances. It is therefore essential that absolute cleanliness is observed when working Always carry out the cleaning process before carrying out any repairs to the fuel system components to prevent foreign material ingress to the components. |