Navistar INTERNATIONAL DT 466 User Manual

5 HARD START AND NO START DIAGNOSTICS 141
Table of Contents
Description..............................................................................................................143
Diagnostic Form Information...............................................................................143
Test Procedures........................................................................................................144
1. Initial IgnitionSwitch ON (Do notstart)...............................................................144
2. Engine Cranking...........................................................................................146
3. Diagnostic Trouble Codes...............................................................................148
VehicleInformation for Form Heading..........................................................148
Entering Vehicle Information without using the EST .........................................148
Entering Vehicle Informationusing the EST...................................................149
AccessingDTCs....................................................................................151
Reading DTCs.......................................................................................152
4. KOEOStandard Test......................................................................................153
5. KOEOInjector Test........................................................................................155
6. EST Data List...............................................................................................157
Monitoring EngineSystems using an EST.....................................................157
Monitoring ICPusing VC Gasket Breakout Harness.........................................159
Monitoring BCP using VC GasketBreakout Harness........................................161
Monitoring EOP at EOTSensorPort............................................................163
Monitoring Engine Systems using BreakoutBox.............................................164
7. Fuel..........................................................................................................166
8. Engine Systems...........................................................................................170
9. Engine Oil...................................................................................................171
10. Intake and Exhaust Restriction........................................................................172
11. Main Power Relay to ECM..............................................................................174
Voltage Measurement with Breakout Harness at Main Power Rela
y......................174
Voltage Measurement atECMwith Breakout Box............................................175
12. Main Power Relay to IDM...............................................................................177
Voltage Measurement at 12–Pin Connection with Breakout Harnes
s.....................177
VoltageMeasurementwith BreakoutHarness at MainPowerRelay......................17
9
13. FuelPressure and Aerated Fuel......................................................................180
Fuel Pressure........................................................................................180
Checking for AeratedFuel usingSpare Fuel Line............................................183
Operationof Fuel Pump...........................................................................185
14. Low ICP System Pressure..............................................................................186
14.1 – System Function............................................................................186
14.2 – Oil ReservoirLevel.........................................................................188
14.3 – IPR and High-pressure Pump Operation...............................................188
14.4 – UnderValve CoverLeakTest.............................................................191
14.5 – IPR Function.................................................................................194
15. Inlet AirHeater System.................................................................................197
15.1 – Current AmperageDraw...................................................................197
15.2 – Voltageat ElementTerminal..............................................................198
15.3 – Element Terminal Continuity..............................................................199
15.4 – Wiring Harness Continuity and Resistance............................................200
15.5 – Relay Operation.............................................................................200
EGES-270-1
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Follow all warnings, cautions, and notes.
©August 2008 Navistar, Inc.

Navistar INTERNATIONAL DT 466 Specifications

General

Brand	Navistar
Model	INTERNATIONAL DT 466
Category	Engine
Language	English