Navistar MaxxForce 9

DIAGNOSTICMANUAL
WARNING
Topreventpersonalinjuryordeath,donotexceedlocalspeedlimitlawsordrivetoofast
forconditionswhenperforming0to60MPHTest.
NOTE–IntakeManifoldPressure(IMP)canvarybasedonECMcalibrationandvehicleweight.Using
ElectronicServiceTool(EST)withServiceMaxx™software,monitorturbochargerwastegateoperation
toverifylowboost.
Step
ActionDecision
2A
Checkforengineperformanceissues.Perform0to60MPHT estprocedure
below:
1.UsingEST,gotoSessions>Performance.
2.Findanopenstretchofroad,whereminimumspeedlimitis
50mphorhigher.
3.Pullovertothesideoftheroad.
4.Whendrivingconditionsaresafeandvehiclehasreached
normaloperatingtemperature,selecttherecordsnapshoticon
fromthetoolbar.
5.Pressacceleratorpedalfullytotheoor,andacceleratefrom0
mphtomaxallowedhighwayspeed.
After0to60MPHTestiscomplete,stoprecordingandsavesnapshot.
Gotostep2B
9
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