Dodge Sprinter 2006 Manual page 834

7 - 12 ENGINE
St a r t en gin e a n d a cceler a t e r a pidly t h r ee t im es, t o
a ppr oxim a t ely 3000 r pm wh ile obser vin g coola n t . If
in t er n a l en gin e com bu st ion ga ses a r e lea kin g in t o
coolin g syst em , bu bbles will a ppea r in coola n t . If bu b-
bles do n ot a ppea r, in t er n a l com bu st ion ga s lea ka ge
is n ot pr esen t .
STAN DARD PROCEDU RE
ADDING ADDITIONAL COOLANT
Th e u se of a lu m in u m cylin der blocks, cylin der
h ea ds a n d wa t er pu m ps r equ ir es specia l cor r osion
pr ot ect ion . On ly Mopa r
Yea r /100,000 Mile F or m u la (glycol ba se coola n t wit h
cor r osion in h ibit or s ca lled H OAT, for H ybr id Or ga n ic
Addit ive Tech n ology) is r ecom m en ded. Th is coola n t
offer s t h e best en gin e coolin g wit h ou t cor r osion wh en
m ixed wit h 50% dist illed wa t er t o obt a in t o obt a in a
fr eeze poin t of -37°C (-35°F ). If it loses color or
becom es con t a m in a t ed, dr a in , flu sh , a n d r epla ce wit h
fr esh pr oper ly m ixed coola n t solu t ion .
CAUTION: Do not use coolant additives that are
claimed to improve engine cooling.
DRAINING COOLING SYSTEM
WARNING: Do not remove the cylinder block drain
plug or loosen the radiator drain plug with system
hot and under pressure. Serious burns from coolant
can occur.
(1) DO NOT r em ove coola n t r ecover y pr essu r e con -
t a in er ca p fir st . Wit h en gin e cold, r a ise veh icle on a
h oist a n d loca t e r a dia t or dr a in cock.
NOTE: Radiator draincock is located on the left/
lower side of radiator.
(2) At t a ch on e en d of a h ose t o t h e dr a in cock (F ig.
3). P u t t h e ot h er en d in t o a clea n a n d a ppr opr ia t ely
m a r ked con t a in er. Open dr a in cock a n d dr a in coola n t
fr om r a dia t or. Th is will em pt y t h e coola n t r ecover y
pr essu r e con t a in er fir st . Th e coola n t does n ot h a ve t o
be r em oved fr om t h e con t a in er u n less t h e syst em is
bein g r efilled wit h a fr esh m ixt u r e. Wh en con t a in er
is em pt y, r em ove ca p a n d con t in u e dr a in in g coolin g
syst em .
To dr a in t h e en gin e of coola n t , loosen t h e cylin der
block dr a in plu g loca t ed on t h e side of cylin der block
(F ig. 3).
An t ifr eeze/Coola n t , 5
VA