Navistar MaxxForce 9 Diagnostic Manual

DIAGNOSTICMANUAL
InterstageCooler(ISC)
Usescooledcoolanttolowerthechargedairtemperaturethatexitsfromtheturbochargerlow-pressure
compressorandenterstheturbochargerhigh-pressurecompressor.
Lowtemperatureradiator
thermostat
Coolantowtothelowtemperatureradiatorisregulatedbythelowtemperatureradiatorthermostat.
Lug(engine)
WhentheengineisrunatanoverlylowRPMfortheloadbeingapplied.
ManifoldAbsolutePressure
(MAP)
Boostpressureinthemanifoldthatisaresultoftheturbocharger.
ManifoldAbsolutePressure
(MAP)sensor
Avariablecapacitancesensorthatmeasuresboostpressure.
Manometer
Adouble-legliquid-columngauge,orasingleinclinedgauge,usedtomeasurethedifferencebetweentwo
uidpressures.Typically,amanometerrecordsininchesofwater.
MassAirFlow
Theintakeairowinanengine.
MassAirFlow(MAF)sensor
TheMAFsensorisusedforclosedloopcontroloftheEGRvalveandITV.TheECMmonitorstheMAF
signalsothattheECMcancontroltheEGRandintakethrottlesystems.
MagnehelicGauge
Agaugethatmeasurespressureininchesofwater.
MagneticPickupSensor
Amagneticpickupsensorgeneratesanalternatingfrequencythatindicatesspeed.Magneticpickupshave
atwo-wireconnectionforsignalandground.Thissensorhasapermanentmagneticcoresurroundedbya
wirecoil.Thesignalfrequencyisgeneratedbytherotationofthegearteeththatdisturbthemagneticeld.
Meteringunitvalveassembly
TheMeteringunitvalveassemblyprovidesameteredamountoffueltotheAftertreatmentFuelInjector(AFI).
Microprocessor
Anintegratedcircuitinamicrocomputerthatcontrolsinformationow.
NitrogenOxides(NO
x
)
NitrogenoxidesFormbyareactionbetweennitrogenandoxygenathightemperaturesandpressures
inthecombustionchamber.
Normallyclosed
Referstoaswitchthatremainsclosedwhennocontrolforceisactingonit.
Normallyopen
Referstoaswitchthatremainsopenwhennocontrolforceisactingonit.
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Navistar MaxxForce 9 Specifications

General

Brand	Navistar
Model	MaxxForce 9
Category	Engine
Language	English