Navistar N10

321DIAGNOSTICTROUBLESHOOTINGPROCEDURES
High-PressureOilPump
(HPOP)T est(page2227).
No:FDPoutof
specication:Goto
8.1LowFuelDelivery
Pressure(page120).
No:EGRoutof
specication:Goto
SPN2791FMI7Fault
CodeDiagnostics(page
1095).
No:TC1TOP ,EBP ,
orDPFDPoutof
specication:Look
forexhaustrestrictions.
GoToDieselParticulate
Filter(DPF)Inspection
(page2370),Diesel
OxidationCatalyst(DOC)
Inspection(page2373),
SelectiveCatalytic
Reduction(SCR)
Inspection(Selective
CatalystReduction(SCR)
Inspection,page2375),
andDecomposition
TubeInspection
(DecompositionReactor
TubeInspection,page
2380).
Step5Determineifenginewillnotstartspecicallyduringcoldambienttemperatures.Decision
Attempttostartengine.
Isenginehardtostart,specicallyduringcoldambienttemperatures?
Yes:Goto3.1Engine
HardtoStart,Cold
AmbientT emperature
(page60).
No:GotoStep6(page
32).
Step6Determineifengineishardtore-startafterbeingruntooperatingtemperatureDecision
A.Runenginetooperatingtemperature.
B.Attempttore-startengineatoperatingtemperature.
Isenginehardtore-startspecicallyafterbeingruntooperatingtemperature?
Yes:Goto3.2Engineat
OperatingTemperature,
HardtoRe-Start(page
62).
No:GotoStep7(page
33).