Case CX490D - TROUBLESHOOTING; Engine Troubleshooting

7-TROUBLESHOOTING
7-TROUBLESHOOTING###_8_###
Faultcoderesolution
Engine-Troubleshooting
NOTE:Thischapterdescribestheeasydiagnosticmethodsforengine-relatedproblemsandtheremediesforthem.
Ifyoucannotndthecauseofaproblemorsolveaproblem,consulttheCASECONSTRUCTIONdealer.
Problem
PossibleCauseCorrection
Theenginedoesnotstart
Defectinstarterswitch(Deactivationof
starter)
Checkthestarterswitch
Poorrunningofstarter(Starterrunning
slowly)
Dischargedbattery,defectinstarter,dirtor
loosenessofconnectors
Poorviscosityofengineoil
Inspectand,asnecessary,replace
PoorairbleedingforfuelsystemBleeditofaircompletely
Coldengine(incoldweather)
Preheatsuctionair,orwarmcoolant
Nofuelinfueltank
Add
Low-qualityfuel
Inspectand,asnecessary,replace
ClogginginfuellterCleanorreplace
Enginestuck
ConsulttheCASECONSTRUCTION
dealer
Lowcompression
ConsulttheCASECONSTRUCTION
dealer
DefectinfuelinjectionpumpConsulttheCASECONSTRUCTION
dealer
BatterydisconnectswitchisOFFSettoON
Noureasolutionremaininginureasolution
tank
Add
Otherureasolutionthanthatofspecied
concentrationadded
ConsulttheCASECONSTRUCTION
dealer
Theenginestopsduring
operation
Nofuelinfueltank
Add
ClogginginfuellterCleanorreplace
AirentryinfuelsystemRetightentheconnectionsoffuellines
AbnormaloilpressureLowoillevelAdd
ClogginginoillterReplacetheoillter
Lowoilviscosity
Replacewiththeoilofsuitableviscosityfor
temperature
Oilleaksfromconnections
Tightentheconnections
DefectinoilpressureswitchConsulttheCASECONSTRUCTION
dealer
MalfunctioninoilpumpConsulttheCASECONSTRUCTION
dealer
Exhaustgasfromthe
engineiswhiteorblue
Excessoil
Giveanoverhaulorreplacecomponents
Verylowoilviscosity
Replacewiththeoilofcorrectviscosity
Overcoolingbyradiator
Adjust
IncorrectfuelinjectiontimingConsulttheCASECONSTRUCTION
dealer
Lowcompression
ConsulttheCASECONSTRUCTION
dealer
Exhaustgasfromthe
engineisblackordeep
gray
WrongfuelReplacewiththecorrectfuel
IncorrectvalveclearanceAdjust
Poorsuction(Clogginginaircleaner)Cleanorreplacetheaircleaner
DefectinfuelinjectionpumpConsulttheCASECONSTRUCTION
dealer
Lowcompression
ConsulttheCASECONSTRUCTION
dealer
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