2008 Jeep Grand Cherokee Owners Manual

280
STARTING AND OPERATING
depend  ing on engine  tem peratu re. When  the “Glow  Plug
Ind icator Light”  goes  out,  the  engine  is read y to  start.
you r engine  becau se  combustion   cham ber tem peratu res
can  drop  so low  that  the  fuel  may  not burn   completely.
Incom plete  combustion    allow s  carbon   and  varnish    to
form   on  piston   rings   and   injector   nozzles.   Also,  the
unbu rned  fuel  can  enter   the  crankcase,  diluting   the  oil
and  causing  rap id wear  to  the  engine.
4.
Tip Start   Feature
Do not  press  the accelerator.  Use  the Fob with  Integrated
Key  to  briefly   turn  the   ignition   switch   to  the  START
position   and   then   release    it.  The   starter   motor   will
continu e  to   run,  and   it   will  autom atically   disengage
when  the  engine  is running.
Engin e Warm -Up
Avoid  full  throttle   operation   when   the  engine   is  cold.
When   starting   a  cold  engine,   bring   the  engine   up  to
operating    speed   slow ly  to  allow   the   oil  pressu re   to
stabilize  as  the engine  warm  s up.
NOTE:    The starter  motor   may  run  up to  30 second s in
very   cold  cond itions   until  the   engine   is  started .  The
starter  can  be disengaged   by  turning   the ignition   key to
the  OFF position,  if  requ ired .
NOTE:    High-sp eed , no-load   running   of a  cold  engine
can  resu lt  in  excessive   white  smoke   and   poor  engine
perform ance.   No-load   engine   speed s   shou ld  be  kep t
und er 1,200  rpm  during  the  warm -up  period , especially
in cold  ambient   tem peratu re cond itions.
5.
After  the  engine   starts,  allow   it to  idle  for  approxi-
mately   30  second s  before   driving.   This  allow s  oil  to
circulate  and  lubricate  the  turbocharger.
Avoid  prolonged   idling  in  ambient  tem peratu res  below
0°F
(-18°C). Long   period s of  idling  may   be harm ful  to
Product Specification
CategoriesJeep Grand Cherokee Manuals, Jeep Manuals
Model Year2008
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- 490 pages
Document File TypePDF
CopyrightAttribution Non-commercial
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