DIAGNOSTIC/TROUBLESHOOTING MANUAL I
Table of Contents
Foreword...................................................................................................................1
Service Diagnosis........................................................................................................2
Safety Information........................................................................................................3
Engine Systems...........................................................................................................5
Engine and Vehicle Features..........................................................................................59
Diagnostic Software Operation....... . . ...... . . ...... . . ...... . ...... . . ...... . . ...... . . ...... . . ...... . . ..... . . ...... . .65
Engine Symptoms Diagnostics.......................................................................................99
Hard Start and No Start Diagnostics... ...... ..... .................................................................141
Performance Diagnostics.............................................................................................203
Electronic Control Systems Diagnostics....... ........ ....... ........ ........ ....... ........ ....... ........ ......279
Diagnostic Tools and Accessories..................................................................................555
Abbreviations and Acronyms........................................................................................579
Terminology.............................................................................................................583
Appendix A: DT 466 Performance Specificatio
ns 2004 Model Year...........................................593
Appendix B: DT 570 and H T 570 Performance Spe
cifications 2004 Model Year............................617
Appendix C: Diagnostic Trouble Code Ind
ex.....................................................................641
Appendix D: Technical Service Informat
ion (TSI)................................................................649
EGES-270-1
Read all safety instructions in the "Safety Information" section of this m anu al before doing any procedures.
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.