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FUEL SYSTEM TABLE OF CONTENTS page page FUEL SYSTEM PRESSURE . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 PRESSURE FUEL LINES . . . . . . . . . . . . . . . . . 1 DIAGNOSIS AND TESTING - AIR IN FUEL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 DIAGNOSIS AND TESTING - INJECTOR LEAK QUANTITY . . . . . . . . . . . . . . . . . . . . . . . 2 STANDARD PROCEDURES - CLEANING FUEL SYSTEM COMPONENTS . . . . . . . . . . . . 3 STANDARD PROCEDURES - DRAINING WATER FROM FUEL FILTER . . . . . . . . . . . . . . 3 PRESSURE FUEL PUMP TEST . . . . . . . . . . . . 4 . . . . . . . . . . . . . . . . . . . . . . . . . . 6 . . . . . . . . . . . . . . . . . . . . . . . . 31 FUEL SYSTEM WARNING WARNING - HIGH FUEL SYSTEM PRESSURE WARNING: HIGH-PRESSURE FUEL LINES DELIVER PUMP TO THE INJECTORS. THIS MAYBE AS HIGH AS 1600BAR (23,200PSI). USE FUEL LEAKS. FUEL UNDER THIS AMOUNT OF PRESSURE CAN PENETRATE SKIN WARNING WARNING: UNDER NO CIRCUMSTANCES SHOULD REPLACEMENT AND FLUSHING OF THE COMPLETE DIESEL FUEL SYSTEM. HIGH PRES- CIRCUIT. ALL CDI FUEL SYSTEM COMPONENTS DIAGNOSIS AND TESTING DIAGNOSIS AND TESTING - HIGH PRESSURE WARNING: HIGH-PRESSURE FUEL LINES DELIVER PUMP TO THE INJECTORS. THIS MAYBE AS HIGH AS 1600BAR (23,200PSI). USE FUEL LEAKS. FUEL UNDER THIS AMOUNT OF PRESSURE CAN PENETRATE SKIN High-pressure fuel line leaks can cause starting problems and poor engine performance. • Turn the engine off. • Place a piece for cardboard in the suspected area (Fig. 1). • Start the engine and allow to run for a short period. • Turn the engine off. • Inspect the cardboard. VA FUEL SYSTEM 14 - 1 |