Dodge ram truck 3500 1996 Service Manual page 338

7 - 54 COOLING SYSTEM B R
R E M O V A L A N D I N S T A L L A T I O N (Continued)
(14) Lift radiator straight up and out of engine
compartment. The bottom of the radiator is equipped
with two alignment dowels that fit into holes in the
lower radiator support panel (Fig. 85). Rubber bis­
cuits (insulators) are installed to these dowels. Take
care not to damage cooling fins or tubes on the radi­
ator and air conditioning condenser when removing.
INSTALLATION
(1) Position fan shroud over the fan blades rear­
ward towards engine.
(2) Install rubber insulators to alignment dowels
at lower part of radiator.
(3) Lower the radiator into position while guiding
the two alignment dowels into lower radiator sup­
port. Different alignment holes are provided in the
lower radiator support for each engine application.
(4) Install two upper radiator mounting bolts.
Tighten bolts to 11 N-m (95 in. lbs.) torque.
(5) 3.9L V-6 or 5.2L/5.9L V-8 Engines: Position the
rubber shields to the sides of radiator. Install the
plastic clips retaining the rubber shields to the sides
of radiator.
(6) Connect both radiator hoses. Refer to previous
CAUTION and install hose clamps.
(7) I f equipped, connect transmission oil cooler
lines to radiator tank. Refer to Group 21, Transmis­
sions for procedures.
(8) Install windshield washer reservoir tank. Refer
to Group 8K.
(9) Position fan shroud to flanges on sides of radi­
ator. Install fan shroud mounting bolts (Fig. 84).
Tighten bolts to 6 N-m (50 in. lbs.) torque.
(10) Diesel Engines: Install metal clips to top of
fan shroud.
(11) A l l engines: Install coolant reserve/overflow
tank hose to radiator filler neck nipple.
(12) All Engines Except 8.0L V-10: Install coolant
reserve/overflow tank to fan shroud (fits into T-slots
on shroud).
(13) Connect throttle cable to fan shroud.
(14) Install negative battery cable to battery.
(15) Diesel Engine: Install positive battery cable
to top of radiator. Tighten radiator-to-battery cable
mounting nuts.
(16) Position heater controls to full heat position.
(17) Fill cooling system with coolant. Refer to
Refilling Cooling System in this group.
(18) Operate engine until it reaches normal tem­
perature. Check cooling system and automatic trans­
mission (if equipped) fluid levels.
ENGINE 1L0C1 HE1TER
REMOVAL
(1) Disconnect negative battery cable(s) from bat-
tery(s).
(2) Drain coolant from radiator and cylinder block.
(3) Remove power cord from heater by unplugging
(Fig. 86) (Fig. 87). On the diesel engine, the cord is
connected to the heater with a knurled cap. Unscrew
this cap for cord removal.
(4) Loosen (but do not completely remove) the
screw at center of block heater (Fig. 86) (Fig. 87). On
the diesel engine, an alien headed screw is used.
(5) Remove block heater from engine by carefully
prying from side- to-side. When removing block
heater, note direction of heating element coil (up or
down). Element coil must be installed correctly to
prevent damage.
Fig. 86 Engine Block Heater—3.9L/5.2L/5.9L Gas
Powered Engine
INSTALLATION
(1) Thoroughly clean the cylinder block freeze plug
hole and block heater seat.
(2) Install new O-ring seal(s) to heater.
(3) Insert block heater into cylinder block.
(4) With heater fully seated, tighten center screw.
(5) Fill cooling system with recommended coolant.
Refer to Refilling Cooling System section in this
group.
(6) Start and warm the engine.
(7) Check block heater for leaks.