Peterbilt 367 2017 - Engine Is Overheating

WHATTODOIF...
6.Waitafewminutestoallowoil
todrainintotheengineoilpan,
andthenchecktheoillevel.(See
InspectionoftheEngineOilon
page4-54.
7.Addoilifnecessary.Iftheproblem
persists,contactanauthorized
dealerassoonaspossible.
CAUTION
Continuingtooperateyourvehicle
withinsufcientoilpressuremay
causesevereenginedamageor
causeanaccidentwhichmayresult
inequipmentorpropertydamage.
Itisimportanttomaintainoilpressure
withinacceptablelimits.Ifoilpressure
dropsbelowtheminimumpsi(kPa)a
RedWarningLampontheoilpressure
gaugewillilluminateandtheStop
EngineLampwillcomeON.
EngineisOverheating
Thecoolingsystemmayoverheatif
thecoolantlevelisbelownormalorif
thereissuddenlossofcoolant,such
asasplithose.Thesystemmayalso
temporarilyoverheatduringsevere
operatingconditionssuchas:
•Climbingalonghillonahotday
•Stoppingafterhigh-speeddriving
Ifeitheroneoftheaboveoccurs,DO
NOTTURNOFFTHEENGINEunless:
a)theLowWaterwarningdevice
indicatesalossofcoolant,b)theRed
Warninglamp(onthegauge)and
CheckEnginelampcomesON,c)the
Buzzersoundsshowinganoverheat
condition,ord)ifyouhaveanyother
reasontosuspecttheenginemaybe
overheating-followthesesteps:
1.Reduceenginespeedand
stop.Whenstopped,placethe
transmissioninNeutralandsetthe
parkingbrake.Keeptheengine
running.
2.ChecktoensuretheOilPressure
Gaugereadsnormal.(SeeEngine
OilPressureGaugeonpage3-11,
forfurtherinformation.)
3.Makesuretheenginefanis
turningbyswitchingtheEngine
FanSwitchfromAUTOtoMAN
(Manual).
4.Increasetheenginespeedto
aboutone-halfoffulloperating
speed,or1,100to1,200rpm,
maximum.
5.Returntheenginespeedtonormal
idleafter2or3minutes.
6.Monitortheenginetemperature.
Afterthetemperaturereturnsto
normal,allowtheenginetoidle
3to5minutesbeforeshuttingit
off.Thisallowstheenginetocool
graduallyanduniformly.
(03/17)Y53-6076-1B12-5
2
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