Chrysler RG Voyager. Manual — part 681
using air pressure in the opposite direction of normal
coolant flow. It is usually only necessary with very
dirty systems with evidence of partial plugging.
REVERSE FLUSHING RADIATOR
Disconnect the radiator hoses from the radiator
inlet and outlet. Attach a section of the radiator hose
to the radiator bottom outlet fitting and insert the
flushing gun. Connect a water supply hose and air
supply hose to the flushing gun.
CAUTION:
Internal
radiator
pressure
must
not
exceed 138 kPa (20 psi) as damage to radiator may
result.
Allow the radiator to fill with water. When the
radiator is filled, apply air in short blasts. Allow the
radiator to refill between blasts. Continue this
reverse flushing until clean water flows out through
the rear of the radiator cooling tube passages.
REVERSE FLUSHING ENGINE
Drain the cooling system. Remove the thermostat
housing and thermostat. Install the thermostat hous-
ing. Disconnect the radiator upper hose from the
radiator and attach the flushing gun to the hose. Dis-
connect the radiator lower hose from the water pump
and attach a lead-away hose to the water pump inlet
fitting.
CAUTION: On vehicles equipped with a heater water
control valve, be sure the heater control valve is
closed (heat off). This will prevent coolant flow with
scale and other deposits from entering the heater
core.
Connect the water supply hose and air supply hose
to flushing gun. Allow the engine to fill with water.
When the engine is filled, apply air in short blasts,
allowing the system to fill between air blasts. Con-
tinue until clean water flows through the lead away
hose.
Remove the lead away hose, flushing gun, water
supply hose and air supply hose. Remove the thermo-
stat housing and install the thermostat. Install the
thermostat housing with a replacement gasket. Refer
to Thermostat Replacement. Connect the radiator
hoses. Refill the cooling system with the correct anti-
freeze/water mixture (Refer to LUBRICATION &
MAINTENANCE/FLUID TYPES - DESCRIPTION).
Refer to Refilling the Cooling System.
CHEMICAL CLEANING
In some instances, use a radiator cleaner (Mopar
t
Radiator Kleen or equivalent) before flushing. This
will soften scale and other deposits and aid flushing
operation.
CAUTION: Follow manufacturers instructions when
using these products.
Fig. 5 Cooling System Service Locations
1 - COOLANT RECOVERY CONTAINER
3 - ENGINE OIL LEVEL DIPSTICK
2 - ENGINE OIL FILL CAP
4 - RADIATOR PRESSURE CAP
RS
COOLING
7 - 5
COOLING (Continued)
SPECIFICATIONS
ACCESSORY DRIVE BELT TENSION
ACCESSORY
DRIVE BELT
TENSION
2.4L ENGINE
Air Conditioning
Compressor/
Generator
Dynamic Tensioner
Power
Steering
New
Belt
534 - 756 N
178 - 212 Hz
(120 - 170
lbs.)
Used
Belt*
356 - 534 N
145 - 178 Hz
(80 - 120 lbs)
*Belt is considered used after 15 minutes of run-in
time
3.3/3.8L ENGINES
Air Conditioning
Compressor
Dynamic
Tensioner
Generator/Water
Pump/Power
Steering
TORQUE
DESCRIPTION
N·m
Ft.
Lbs.
In.
Lbs.
Bolt, Accessory Drive Belt
Tensioner Assembly (3.3/3.8L)
28
-
250
Engine Coolant Temperature
Sensor
7
-
60
Bolt, Generator & A/C Compressor
Drive Belt Tensioner Assembly
(2.4L)
54
40
-
Bolts, Coolant Outlet Connector/
Thermostat Housing
28
-
250
Bolts, Water Pump
12
-
105
Bolts , Water Pump Inlet Tube
(2.4L)
12
-
105
Bolts, Water Pump Inlet Tube
(3.3/3.8L)
28
-
250
Bolts, Water Pump Pulley (3.3/3.8L)
28
-
250
Screws, Radiator to A/C Condenser
5
-
45
Screws, Radiator Fan
5
-
45
Nuts, Radiator Mounting (Upper
Bracket)
12
-
105
7 - 6
COOLING
RS
COOLING (Continued)
SPECIAL TOOLS
COOLING SYSTEM
Hose Clamp Pliers 6094
Hose Clamp Pliers 8495A
Cooling System Tester 7700
Coolant Refractometer 8286
TOOL 8875A
DRB III
T
with PEP Module – OT-CH6010A
Belt Tension Gauge Adapter 8371
Belt Tension Gauge 7198A
RS
COOLING
7 - 7
COOLING (Continued)
ACCESSORY DRIVE
TABLE OF CONTENTS
page
page
DRIVE BELTS
DIAGNOSIS AND TESTING - ACCESSORY
. . . . . . . . . . . . . . . . . . . . . . . . . . 8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
. . . . . . . . . . . . . . . . . . . . . . . . . . . 9
DRIVE BELTS - 2.4L
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
. . . . . . . . . . . . . . . . . . . . . . . . . 11
. . . . . . . . . . . . . . . . . . . . . . . . 11
BELT TENSIONER - 2.4L
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
. . . . . . . . . . . . . . . . . . . . . . . . . 12
DRIVE BELTS - 3.3/3.8L
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
. . . . . . . . . . . . . . . . . . . . . . . . . 13
BELT TENSIONER - 3.3/3.8L
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
. . . . . . . . . . . . . . . . . . . . . . . . . 13
DRIVE BELTS
DIAGNOSIS AND TESTING - ACCESSORY
DRIVE BELT
CONDITION
POSSIBLE CAUSES
CORRECTIONS
INSUFFICIENT ACCESSORY
OUTPUT DUE TO BELT SLIPPAGE
1. Belt too loose
1. (a) Replace belt (auto-tensioned
belts)
(b) Adjust power steering belt
tension (4 cyl. engine)
2. Belt excessively glazed or worn
2. Replace and tighten as specified
BELT SQUEAL WHEN
ACCELERATING ENGINE
1. Belts too loose
1. (a) Replace belt (auto-tensioned
belts)
(b) Adjust power steering belt
tension (4 cyl. engine)
2. Belt glazed
2. Replace belts
BELT SQUEAK AT IDLE
1. Belts too loose
1. (a) Replace belt (auto-tensioned
belts)
(b) Adjust power steering belt
tension (4 cyl. engine)
2. Dirt or paint imbedded in belt
2. Replace belt
3. Non-uniform belt
3. Replace belt
4. Misaligned pulleys
4. Align accessories
5. Non-uniform groove or eccentric
pulley
5. Replace pulley
7 - 8
ACCESSORY DRIVE
RS
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