Dodge Sprinter 2006 Manual page 2107

VA
(4) In st a ll t h e t wo bolt s t h a t secu r e t h e A/C expa n -
sion va lve t o t h e eva por a t or t u be t a ppin g pla t e.
Tigh t en t h e bolt s t o 5 N·m (45 in . lbs.).
(5) Rem ove t h e t a pe or plu gs fr om t h e liqu id a n d
su ct ion lin e fit t in gs a n d bot h expa n sion va lve por t s.
(6) Lu br ica t e n ew r u bber O-r in g sea ls wit h clea n
r efr iger a n t oil a n d in st a ll t h em on t h e liqu id a n d su c-
t ion lin e fit t in gs.
(7) Con n ect t h e liqu id lin e fit t in g t o t h e A/C expa n -
sion va lve.
(8) Con n ect t h e su ct ion lin e fit t in g t o t h e A/C
expa n sion va lve.
(9) In st a ll t h e n u t t h a t secu r es t h e su ct ion lin e
a n d liqu id lin e fit t in gs t o t h e st u d on t h e A/C expa n -
sion va lve. Tigh t en t h e n u t t o 10 N·m (89 in . lbs.).
(10) Recon n ect t h e n ega t ive ba t t er y ca ble.
(11) E va cu a t e t h e r efr iger a n t syst em (Refer t o 24 -
H E ATING & AIR CONDITIONING/P LUMBING -
STANDARD P ROCE DURE - RE F RIGE RANT SYS-
TE M E VACUATE ).
(12) Ch a r ge t h e r efr iger a n t syst em (Refer t o 24 -
H E ATING & AIR CONDITIONING/P LUMBING -
STANDARD P ROCE DURE - RE F RIGE RANT SYS-
TE M CH ARGE ).
ELECT RI C COOLAN T PU M P
DESCRIPTION
Th e elect r ic coola n t pu m p en su r es t h e u n ifor m flow
of coola n t t h r ou gh t h e h ea t er cor e wit h ou t bu bbles,
even a t low speeds (F ig. 12). Th e elect r ic coola n t
pu m p is loca t ed in t h e left side of t h e en gin e com -
pa r t m en t n ea r t h e ba t t er y a n d is con t r olled by t h e
A/C-h ea t er con t r ol.
Th e elect r ic coola n t pu m p h ou sin g con t a in s t wo
coola n t h ose con n ect ion s a n d a n elect r ic m ot or wh ich
dr ives t h e va n e-t ype
clu t ch .
pu m p u sin g a m a gn et ic
Fig. 12 Electric Coolant Pump
1 - ELECTRIC COOLANT PUMP
2 - COOLANT HOSE CONNECTIONS
3 - WIRE CONNECTOR
OPERA TION
Th e elect r ic coola n t pu m p is con t r olled by t h e ATC
A/C-h ea t er con t r ol a n d is on ly oper a t ion a l wh en t h e
ign it ion swit ch is on u n der t h e followin g con dit ion s:
(1) Veh icle speed below 27 Km /h (17 m ph ).
(2) Coola n t t em per a t u r e a bove 65° C (150° F ) bu t
less t h a n 110° C (230 ° F ).
(3) An y blower m ot or speed set t in g.
(4) Tem per a t u r e h ea t set t in g a bove t h e h a lfwa y
set t in g (60% h ea t ).
(5) Th e pu m p will t u r n off a t speeds a bove 48
Km /h (30 m ph ).
(6) Th e pu m p will t u r n off if t h e coola n t t em per a -
t u r e r ises a bove 110° C (230 ° F ).
REMOVAL
(1) Discon n ect a n d isola t e t h e n ega t ive ba t t er y
ca ble.
(2) P a r t ia lly dr a in
(Refer t o 7 - COOLING/E NGINE /COOLANT - STAN-
DARD P ROCE DURE - DRAINING COOLANT SYS-
TE M).
(3) Discon n ect t h e wir e h a r n ess con n ect or fr om t h e
elect r ic coola n t pu m p (F ig. 13).
(4) Loosen bot h h ose cla m ps fr om t h e elect r ic cool-
a n t pu m p.
(5) Usin g a t wist in g m ot ion gen t ly r em ove bot h
h ea t er h oses fr om t h e elect r ic coola n t pu m p.
(6) Rem ove t h e t wo elect r ic coola n t pu m p br a cket
r et a in in g n u t s fr om t h e body st u ds.
(7) Rem ove t h e elect r ic coola n t pu m p fr om t h e
veh icle.
PLUMBING 24 - 75
t h e en gin e coolin g syst em