Navistar International DT 466 Diagnostic/Troubleshooting Manual page 131

17. Replace leaking fuel injector following the
procedure in the Engine Service Manual.
NOTE: If a set (six) of injectors must be replaced,
contact International® Technical Services to start
a case file.
18. Remove the high-pressure oil rail following the
procedure in the Engine Service Manual.
19. Use the black light to inspect between each
injector and hold-down clamp. Do not remove the
injectors.
• If a leak is found, do steps 20 and 21.
• If no leak is found, do steps 22 through 24.
20. Relieve the pressure in the fuel system to avoid
further contamination of oil.
21. Replace leaking fuel injector following the
procedure in the Engine Service Manual.
NOTE: If a set of injectors (six) must be replaced,
contact International® Technical Services to start
a case file.
22. Relieve the pressure in the fuel system to avoid
further contamination of oil.
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
4 ENGINE SYMPTOMS DIAGNOSTICS
EGES-270-1
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
Figure 150 Fuel injector weep hole
23. Remove each injector (one at a time) following the
procedure in the Engine Service Manual. Hold
each fuel injector over their respective injector
opening for several seconds to allow fuel to drain
from injector. Inspect each injector.
24. Replace leaking fuel injector following the
procedure in the Engine Service Manual.
NOTE: If a set of injectors (six) must be replaced,
contact International® Technical Services to start
a case file.
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