Dodge ram truck 3500 1996 Service Manual page 330

7 - 46 COOLING SYSTEM —
R E M O V A L AND INSTALLATION (Continued)
(14) Connect throttle cable to clip at radiator fan
shroud.
(15) Connect wiring harness to A/C compressor.
(16) Fill cooling system. Refer to Refilling Cooling
System in this group.
(17) Start and warm the engine. Check for leaks.
THERMOSTAT—3.9L V-6 OR 5.2/5.9L V-8
REMOVAL
WARNING: DO NOT LOOSEN THE RADIATOR
DRAINCOCK WITH THE SYSTEM HOT AND PRES­
SURIZED. SERIOUS BURNS FROM THE COOLANT
CAN OCCUR.
Do not waste reusable coolant. I f the solution is
clean, drain the coolant into a clean container for
reuse.
I f the thermostat is being replaced, be sure that
the replacement is the specified thermostat for the
vehicle model and engine type.
Factory installed thermostat housings on 3.9L V-6
or 5.2/5.9L V-8 engines are installed on a gasket with
an anti-stick coating. This will aid in gasket removal
and cleanup.
(1) Disconnect negative battery cable at battery.
(2) Drain cooling system until coolant level is
below thermostat. Refer to Draining Cooling System
in this group. I f not equipped with air conditioning,
proceed to step number 4.
(3) I f equipped with air conditioning:
(a) Remove the support bracket (rod) located
near the rear of generator (Fig. 70).
(b) The drive belt must be removed. Refer to
Belt Removal/Installation in the Engine Accessory
Drive Belt section of this group.
(c) The generator must be partially removed.
Remove the two generator mounting bolts. Do not
remove any wiring at generator. I f equipped with
4WD, unplug the 4WD indicator lamp wiring har­
ness (located near rear of generator).
(d) Remove generator. Position generator to gain
access for thermostat gasket removal.
WARNING: CONSTANT TENSION HOSE CLAMPS
ARE USED ON MOST COOLING SYSTEM HOSES.
WHEN REMOVING OR INSTALLING, USE ONLY
TOOLS DESIGNED FOR SERVICING THIS TYPE OF
CLAMP, SUCH AS SPECIAL CLAMP TOOL (NUMBER
6094) (Fig. 23). SNAP-ON CLAMP TOOL (NUMBER
HPC-20) MAY BE USED FOR LARGER CLAMPS.
ALWAYS WEAR SAFETY GLASSES WHEN SERVIC­
ING CONSTANT TENSION CLAMPS.
mm
Fig. 70 Support Bracket—Generator Mounting
Bracket-to-intake Manifold—Typical
CAUTION: A number or letter Is stamped into the
tongue of constant tension clamps (Fig. 24). If
replacement is necessary, use only an original
equipment clamp with a matching number or letter.
(4) Remove upper radiator hose clamp. Remove
upper radiator hose at thermostat housing.
(5) Position the wiring harness (behind the ther­
mostat housing) to gain access to thermostat hous­
ing.
(6) Remove thermostat housing mounting bolts,
thermostat housing, gasket and thermostat (Fig. 71).
Discard old gasket.
•THERMOSTAT
MACHINED GROOVE
J9207-14
Fig. 71 Thermostat—3.9L V-6 or 5.2/5.9L V-8 Gas
Engines