284
STARTING AND OPERATING
depending on engine temperature. When the “Wait To
Start”goesout,theengineisreadytostart.
Incomplete combustion allows carbon and varnish to
form on piston rings and injector nozzles. Also, the
unburned fuel can enter the crankcase, diluting the oil
andcausingrapidweartotheengine.
4.
TipStartFeature
Donotpresstheaccelerator.UsetheFobwithIntegrated
Key (FOBIK) to briefly turn the ignition switch to the
STARTpositionandthenreleaseit.Thestartermotorwill
continue to run, and it will automatically disengage
whentheengineisrunning.Iftheenginefailstostart,the
starter will disengage automatically in 20 seconds. The
startercanbedisengagedbyturningtheignitionkeyto
theOFFposition,ifrequired.
EngineWarm-Up
Avoid full throttle operation when the engine is cold.
When starting a cold engine, bring the engine up to
operating speed slowly to allow the oil pressure to
stabilizeastheenginewarmsup.
NOTE: High-speed, no-load running of a cold engine
can result in excessive white smoke and poor engine
performance. No-load engine speeds should be kept
under1,200RPMduringthewarm-upperiod,especially
incoldambienttemperatureconditions.
5.
After the engine starts, allow it to idle for approxi-
mately 30 seconds before driving. This allows oil to
circulateandlubricatetheturbocharger.
Avoid prolonged idling in ambient temperatures below
Iftemperaturesarebelow32°F(0°C),operatetheengine
atmoderatespeedsforfiveminutesbeforefullloadsare
applied.
0°F
(-18°C). Long periods of idling may be harmful to
your engine because combustion chamber temperatures
candropsolowthatthefuelmaynotburncompletely.
| Categories | Jeep Grand Cherokee Manuals, Jeep Manuals |
|---|---|
| Model Year | 2009 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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