Navistar MaxxForce 9 Diagnostic Manual

TABLEOFCONTENTS
TABLEOFCONTENTS
1.FOREWORD........................................................................................................1
2.SAFETYINFORMATION..........................................................................................2
3.MAXXFORCE
®
DT,9AND10AFTERTREATMENTSYSTEMDIAGNOSTICS............................5
3.1.STARTDIAGNOSTICSHERE:ENGINEANDAFTERTREATMENTSYSTEM
OPERATIONALCHECKS.................................................................................5
3.2.SYMPTOM1(MEDIUMDUTY):FREQUENTPARKEDREGENSWITHNOACTIVE
FAULTCODES(MORETHANONEPARKEDREGENPERDAY)...................................8
3.3.SYMPTOM2(MEDIUMDUTY):ENGINENOSTART/STARTSANDSTALLS...................17
3.4.SYMPTOM3(MEDIUMDUTY):SPN3719ORSPN3936ACTIVEONLYOR
FREQUENTREGENS(MORETHANONEPARKEDREGENPERDAY).........................24
3.5.SYMPTOM4(MEDIUMDUTY):SPN3719ORSPN3936ANDOTHERACTIVEFAULT
CODES.....................................................................................................34
3.6.SYMPTOM5(MEDIUMDUTY):BLACKSMOKE....................................................44
4.MAXXFORCE
®
DT,9AND10SERVICEMAXX™SNAPSHOTS...........................................51
4.1.GRAPH1:AIRMANAGEMENTSYSTEMTEST(GOOD)...........................................51
4.2.GRAPH2:AIRMANAGEMENTSYSTEMTEST(BAD)..............................................53
4.3.GRAPH3:0TO60MPHTEST(ICPDESIREDANDICP)..........................................54
4.4.GRAPH4:0TO60MPHTEST(ENGINESPEED,ENGINELOAD,IMP ,EBP ,ANDAPP1)....55
4.5.GRAPH5:NORMALEXHAUSTGASTEMPERATURES(EFFICIENTDOCAND
UNRESTRICTEDAFI)...................................................................................57
4.6.GRAPH6:ERRATICEXHAUSTGASTEMPERATURES...........................................59
4.7.GRAPH7:LOWEXHAUSTGASTEMPERATURES(RESTRICTEDAFI).........................60
4.8.SOOTLOADLEVELVS.EXHAUSTGASTARGETTEMPERATURECHART...................62
5.AFTERTREATMENTSYSTEMOPERATION.................................................................63
5.1.MAXXFORCE
®
DT,9AND10...........................................................................63
6.COMPONENTDESCRIPTIONS(THEORYOFOPERATION)..............................................66
6.1.MAXXFORCE
®
DT,9AND10...........................................................................66
7.AFTERTREATMENTSYSTEMFAULTCODES..............................................................75
7.1.MAXXFORCE
®
DT,9AND10(EPA10)................................................................75
8.AFTERTREATMENTSYSTEMEVENTCHART..............................................................78
8.1.MAXXFORCE
®
DT,9AND10...........................................................................78
9.MAXXFORCE
®
11,13AND15AFTERTREATMENTSYSTEMDIAGNOSTICS..........................79
9.1.STARTDIAGNOSTICSHERE:ENGINEANDAFTERTREATMENTSYSTEM
OPERATIONALCHECKS................................................................................79
9.2.SYMPTOM1(HEAVYDUTY):FREQUENTPARKEDREGENSWITHNOACTIVE
FAULTCODES(MORETHANONEPARKEDREGENPERDAY).................................83
9.3.SYMPTOM2(HEAVYDUTY):ENGINENOSTART/STARTSANDSTALLS.....................91
9.4.SYMPTOM3(HEAVYDUTY):SPN3719ACTIVEONLYORFREQUENTREGENS
(MORETHANONEPARKEDREGENPERDAY)....................................................96
9.5.SYMPTOM4(HEAVYDUTY):SPN3719ANDOTHERACTIVEFAULTCODES..............104
9.6.SYMPTOM5(HEAVYDUTY):BLACKSMOKE.....................................................113
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Navistar MaxxForce 9 Specifications

General

Brand	Navistar
Model	MaxxForce 9
Category	Engine
Language	English