2004 Ford F-250 F-350 F-450 F-550 Owners Manual

Maintenance and Specifications
Howfail-safecoolingworks
Iftheenginebeginstooverheat:
•
Theenginecoolanttemperature
gaugewillmovetothered(hot)
area.
•
•
The
illuminate.
and
symbolwill
TheServiceenginesoon
indicatorlightwillilluminate.
Iftheenginereachesapreset
over-temperaturecondition,theenginewillautomaticallyswitchto
alternatingcylinderoperation.Eachdisabledcylinderactsasanair
pumpandcoolstheengine.
Whenthisoccursthevehiclewillstilloperate.However:
•
•
Theenginepowerwillbelimited.
Theairconditioningsystemwillbedisabled.
Continuedoperationwillincreasetheenginetemperatureandtheengine
willcompletelyshutdown,causingsteeringandbrakingeffortto
increase.
Oncetheenginetemperaturecools,theenginecanbere-started.Take
yourvehicletoaservicefacilityassoonaspossibletominimizeengine
damage.
Whenfail-safemodeisactivated
Youhavelimitedenginepowerwheninthefail-safemode,sodrivethe
vehiclewithcaution.Thevehiclewillnotbeabletomaintainhigh-speed
operationandtheenginewillrunrough.Rememberthattheengineis
capableofcompletelyshuttingdownautomaticallytopreventengine
damage,therefore:
1.
2.
3.
4.
Pullofftheroadassoonassafelypossibleandturnofftheengine.
Arrangeforthevehicletobetakentoaservicefacility.
Ifthisisnotpossible,waitashortperiodfortheenginetocool.
Checkthecoolantlevelandreplenishiflow.
Neverremovethecoolantreservoircapwhiletheengineis
runningorhot.
249
2004
F250/350/450/550(f23)
OwnersGuide(post-2002-fmt)
USAEnglish(fus)
Product Specification
CategoriesFord F-150 F-250 F-350 F-450 F-550 Manuals, Ford Manuals
Tags, , ,
Model Year2004
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