Dodge Sprinter 2006 Manual page 831

VA
COOLANT
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . 9
DIAGNOSIS AND TESTING
COOLING SYSTEM LEAKS
STANDARD PROCEDURE
ADDING ADDITIONAL COOLANT
DRAINING COOLING SYSTEM
REFILLING COOLING SYSTEM
COOLANT LEVEL SENSOR
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 14
RADIATOR FAN
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 14
ENGINE BLOCK HEATER
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 15
ENGINE COOLANT TEMP SENSOR
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 15
COOLAN T
DESCRIPTION
Coola n t flows t h r ou gh t h e en gin e wa t er ja cket s
a n d cylin der h ea ds a bsor bin g h ea t pr odu ced by t h e
en gin e du r in g oper a t ion . Th e coola n t ca r r ies h ea t t o
t h e r a dia t or a n d h ea t er cor e. H er e it is t r a n sfer r ed t o
a m bien t a ir pa ssin g t h r ou gh t h e r a dia t or a n d h ea t er
cor e fin s.
Th e r equ ir ed et h ylen e-glycol (a n t ifr eeze) a n d wa t er
m ixt u r e depen ds u pon t h e clim a t e a n d veh icle oper-
a t in g con dit ion s. Th e r ecom m en ded m ixt u r e of 50/50
et h ylen e-glycol a n d wa t er will pr ovide pr ot ect ion
a ga in st fr eezin g t o -37° C (-35° F ). Th e a n t ifr eeze
con cen t r a t ion m u s t a lw a y s be a m in im u m of 44 per-
cen t , yea r-r ou n d in a ll clim a t es. If p e rc e n ta g e is
lo w e r th a n 44 p e rc e n t, e n g in e p a rts m a y be
e ro d e d by c a v ita tio n , a n d c o o lin g s y s te m c o m -
p o n e n ts m a y be s e v e re ly d a m a g e d by c o rro s io n .
Ma xim u m pr ot ect ion a ga in st fr eezin g is pr ovided
wit h a 68 per cen t a n t ifr eeze con cen t r a t ion , wh ich
pr even t s fr eezin g down t o -67.7° C (-90° F ). A h igh er
per cen t a ge will fr eeze a t a wa r m er t em per a t u r e.
Also, a h igh er per cen t a ge of a n t ifr eeze ca n ca u se t h e
en gin e t o over h ea t beca u se t h e specific h ea t of a n t i-
fr eeze is lower t h a n t h a t of wa t er.
EN GI N E
TABLE OF CONTENTS
page
. . . . . . . . . . . . . . 10
. . . . . . . . . 12
. . . . . . . . . . . 12
. . . . . . . . . . . 13
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 15
ENGINE COOLANT THERMOSTAT
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 16
FAN DRIVE VISCOUS CLUTCH
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 17
RADIATOR
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 19
RADIATOR PRESSURE CAP
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 19
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
DIAGNOSIS AND TESTING - RADIATOR
PRESSURE CAP
WATER PUMP
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 22
100 Percent Ethylene - Glycol - Should Not Be Used in
Chrysler Vehicles
Use of 100 per cen t et h ylen e-glycol will ca u se for-
m a t ion of a ddit ive deposit s in t h e syst em , a s t h e cor-
r osion in h ibit ive a ddit ives in et h ylen e-glycol r equ ir e
t h e pr esen ce of wa t er t o dissolve. Th e deposit s a ct a s
in su la t ion , ca u sin g t em per a t u r es t o r ise t o a s h igh a s
149° C (300° F ). Th is t em per a t u r e is h ot en ou gh t o
m elt pla st ic a n d soft en solder. Th e in cr ea sed t em per-
a t u r e ca n r esu lt in en gin e det on a t ion . In a ddit ion ,
100 per cen t et h ylen e-glycol fr eezes a t -22° C (-8° F ).
Propylene - glycol Formulations - Should Not Be Used in
Chrysler Vehicles
P ro p y le n e -g ly c o l fo rm u la tio n s d o n o t m e e t
Ch ry s le r c o o la n t s p e c ific a tio n s . It 's over a ll effec-
t ive t em per a t u r e r a n ge is sm a ller t h a n t h a t of et h yl-
en e-glycol. Th e fr eeze poin t of 50/50 pr opylen e-glycol
a n d wa t er is -32° C (-26° F ). 5° C h igh er t h a n et h yl-
en e-glycol's fr eeze poin t . Th e boilin g poin t (pr ot ect ion
a ga in st su m m er boil-over ) of pr opylen e-glycol is 125°
C (257° F ) a t 96.5 kP a (14 psi), com pa r ed t o 128° C
(263° F ) for et h ylen e-glycol. Use of pr opylen e-glycol
ca n r esu lt in boil-over or fr eeze-u p in Ch r ysler veh i-
cles, wh ich a r e design ed for et h ylen e-glycol. P r opy-
len e glycol a lso
ch a r a ct er ist ics t h a n
in cr ea se cylin der h ea d t em per a t u r es u n der cer t a in
con dit ion s.
ENGINE 7 - 9
. . . . . . . . . . . . . . . . . . . . . . 20
h a s poor er h ea t
et h ylen e glycol. Th is
page
t r a n sfer
ca n