Navistar MaxxForce 10 Diagnostic Manual

DIAGNOSTICMANUAL
Step
ActionDecision
14
RunDSISystemDe-AerationProceduretwice,topurgetheDown
StreamInjection(DSI)systemofair.UsingEST ,gotoProcedures>
KOERAftertreatmentProcedures>DSISystemDe-Aeration.
Gotostep15
Step
ActionDecision
15
UsingEST,checkDiagnosticTroubleCode(DTC)listforfaultcode(s)
thatmayhavebecomeactiveduringOBFCT.
DoesDTClistcontainactivefaultcode(s)?
Yes:Repairactivefault
code(s)(SeeElectronic
ControlSystemsDiagnostics
inEngineDiagnosticManual).
Afterrepairsarecomplete,go
tostep16.
No:Gotostep16
Step
ActionDecision
16
Verifyexhaustgastemperaturesarewithinspecication.
1.UsingElectronicServiceT ool(EST)withServiceMaxx™
software,gotoT ests>KOERAftertreatmentT ests>
OnboardFilterCleanlinessTest(OBFCT).
2.GotoSessions>Performanceandselecttherecord
snapshoticonfromthetoolbar.
WhenOBFCTiscomplete,stoprecording.Usetheplaybackfeature
andgraphthefollowingsignalvaluesfromOBFCT :
SignalValues:
•DieselOxidationCatalystInletTemperature(DOCIT)
•DieselParticulateFilterInletT emperature(DPFIT)
•DieselParticulateFilterOutletTemperature(DPFOT)
•DPFSootLoad
ComparesnapshottoGraph5and6page57.
Whichgraphdoessnapshotmostcloselymatch?
Graph5:Gotostep17
Graph6:ReplaceDOC.After
repairsarecomplete,retest
fororiginalproblem.
Step
ActionDecision
17
Verifyrootcauseoffrequentregenssymptom.
Hasrootcauseforfrequentregensbeendiagnosedandrepaired?
Yes:Gotostep18
No:Gobacktostep1of
EngineandAftertreatment
SystemOperationalChecks
page5toverifyengine
systemsareinsatisfactory
condition.
32
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Navistar MaxxForce 10 Specifications

General

Brand	Navistar
Model	MaxxForce 10
Category	Engine
Language	English