Dodge Dakota (R1). Manual — part 247
COOLING
TABLE OF CONTENTS
page
page
COOLING
STANDARD PROCEDURE . . . . . . . . . . . . . . . . . . 14
ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
REFILLING COOLING SYSTEM 3.9L/5.9L
ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
DRAINING COOLING SYSTEM 4.7L ENGINE . . 15
REFILLING COOLING SYSTEM 4.7L
ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
FLUSHING . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
. . . . . . . . . . . . . . . . . . . . . . 18
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
. . . . . . . . . . . . . . . . . . . . . . . . . 64
COOLING
DESCRIPTION—COOLING SYSTEM FLOW 2.5L
ENGINE
The cooling system regulates engine operating tem-
perature. It allows the engine to reach normal oper-
ating temperature as quickly as possible. It also
maintains normal operating temperature and pre-
vents overheating.
The cooling system also provides a means of heat-
ing the passenger compartment and cooling the auto-
matic transmission fluid (if equipped). The cooling
system is pressurized and uses a centrifugal water
pump to circulate coolant throughout the system.
An optional factory installed maximum duty cool-
ing package is available on most models. This pack-
age will provide additional cooling capacity for
vehicles used under extreme conditions such as
trailer towing in high ambient temperatures (Fig. 1).
DESCRIPTION—COOLING SYSTEM FLOW -
3.9L/5.9L ENGINE
The cooling system regulates engine operating tem-
perature. It allows the engine to reach normal oper-
ating temperature as quickly as possible. It also
maintains normal operating temperature and pre-
vents overheating.
The cooling system also provides a means of heat-
ing the passenger compartment and cooling the auto-
matic transmission fluid (if equipped). The cooling
system is pressurized and uses a centrifugal water
pump to circulate coolant throughout the system.
An optional factory installed maximum duty cool-
ing package is available on most models. This pack-
age will provide additional cooling capacity for
vehicles used under extreme conditions such as
trailer towing in high ambient temperatures (Fig. 2).
AN
COOLING
7 - 1
Fig. 1 Engine Cooling System Flow
1 - WATER CONTROL VALVE
2 - TO WATER PUMP
3 - THERMOSTAT HOUSING
4 - RADIATOR CAP
5 - RADIATOR
6 - TO COOLANT RESERVE BOTTLE
7 - TO WATER PUMP
8 - TO HEATER CORE
9 - FROM HEATER CORE
7 - 2
COOLING
AN
COOLING (Continued)
Fig. 2 Engine Cooling System Flow
1 - HEATER
2 - BYPASS*
3 - CROSSFLOW RADIATOR
AN
COOLING
7 - 3
COOLING (Continued)
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