Engine Fan Noise 
This vehicle  has  a  clutched engine  cooling  fan.  When  the  clutch  is engaged, 
the  fan  spins  faster  to provide  more  air  to 
cool the engine.  In most  every  day 
driving  conditions  the  clutch  is  not  engaged.  This  improves  fue\
l  economy  and 
reduces  fan  noise.  Under  heavy  vehicle  loading,  trailer  towing  andlor  high 
outside  temperatures,  the  fan  speed  increases  when  the  clutch  e\
ngages. 
So 
you  may  hear  an  increase in  fan noise.  This  is normal  and  should  not  be 
mistaken  as  the transmission  slipping  or  making  extra  shifts.  It  is merely  the 
cooling  system  functioning  properly.  The  fan  will 
slow down  when  additional 
cooling  is not  required  and  the  clutch  disengages. 
You  may  also  hear  this  fan  noise when  you  start  the  engine.  It will  go  away 
as  the  fan  clutch disengages. 
If a Tire Goes Fiat 
It’s  unusual  for  a  tire  to “blow  out” while  you’re  driving,  especially if you 
maintain  your  tires  properly.  If  air  goes  out  of a  tire,  it’s  much  more  likely  to 
leak  out  slowly.  But 
if you  should  ever  have  a  “blowout,”  here  are a few  tips 
about  what  to  expect  and  what  to do: 
If  a  front  tire  fails,  the  flat  tire will  create  a  drag  that  pulls  the  vehicle  toward 
that  side.  Take  your  foot  off  the  accelerator  pedal  and  grip  \
the  steering  wheel 
firmly.  Steer  to maintain  lane  position,  then  gently  brake  to a  stop  well  out  of 
the  traffic  lane. 
A rear  blowout,  particularly  on  a  curve,  acts  much  like  a  skid and  may 
require  the  same  correction  you’d  use  in a  skid.  In any  rear  blowout,  remove 
your  foot  from  the  accelerator  pedal.  Get  the‘vehicle under  control  by steering 
the  way  you  want  the  vehicle to go.  It  may  be  very  bumpy  and  noisy,  but 
you  can  still  steer.  Gently  brake  to a  stop,  well  off  the road 
if possible. 
If your  tire goes  flat,  the  next  part  shows  how  to use  your  jacking  equipment 
to  change  a  flat  tire  safely. 
Changing a Flat  Tire 
If a  tire  goes  flat,  avoid  further  tire  and  wheel  damage  by  driv\
ing  slowly  to a 
level  place.  Turn  on  your  hazard  warning  flashers. 
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