COOLING SYSTEM
TABLE OF CONTENTS
page
page
DESCRIPTION AND OPERATION
COOLING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . 1
RADIATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
ENGINE ACCESSORY DRIVE BELT. . . . . . . . . . . . 3
COOLANT TANK . . . . . . . . . . . . . . . . . . . . . . . . . . 3
WATER PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
COOLANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
LOW COOLANT LEVEL SENSOR . . . . . . . . . . . . . 3
THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
PRESSURE/VENT CAP . . . . . . . . . . . . . . . . . . . . . 4
COOLANT PERFORMANCE . . . . . . . . . . . . . . . . . . 5
COOLING SYSTEM HOSES. . . . . . . . . . . . . . . . . . 5
VISCOUS FAN DRIVE . . . . . . . . . . . . . . . . . . . . . . 6
BELT TENSION . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
AUTOMATIC BELT TENSIONER . . . . . . . . . . . . . . 7
DIAGNOSIS AND TESTING
PRELIMINARY CHECKS . . . . . . . . . . . . . . . . . . . . 8
THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
VISCOUS FAN DRIVE . . . . . . . . . . . . . . . . . . . . . 14
RADIATOR COOLANT FLOW CHECK . . . . . . . . . 15
TESTING COOLING SYSTEM FOR LEAKS . . . . . 15
PRESSURE/VENT CAP . . . . . . . . . . . . . . . . . . . . 16
LOW COOLANT LEVEL- AERATION . . . . . . . . . . 16
BELT DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . . 17
SERVICE PROCEDURES
COOLANT LEVEL CHECK . . . . . . . . . . . . . . . . . . 18
DRAINING COOLING SYSTEM . . . . . . . . . . . . . . 19
REFILLING COOLING SYSTEM. . . . . . . . . . . . . . 19
COOLANT REPLACEMENT . . . . . . . . . . . . . . . . . 20
REMOVAL AND INSTALLATION
RADIATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
FAN BLADE REMOVAL . . . . . . . . . . . . . . . . . . . . 21
VISCOUS FAN DRIVE . . . . . . . . . . . . . . . . . . . . . 22
THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
DRIVE BELT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
AUTOMATIC BELT TENSIONER . . . . . . . . . . . . . 23
WATER PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . 23
CLEANING AND INSPECTION
WATER PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . 26
RADIATOR CLEANING . . . . . . . . . . . . . . . . . . . . 26
FAN BLADE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
PRESSURE/VENT CAP . . . . . . . . . . . . . . . . . . . . 27
COOLING SYSTEM CLEANING/REVERSE
FLUSHING . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
SPECIFICATIONS
COOLING SYSTEM CAPACITY . . . . . . . . . . . . . . 28
THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
TORQUE SPECIFICATIONS . . . . . . . . . . . . . . . . . 28
DESCRIPTION AND OPERATION
COOLING SYSTEM
DESCRIPTION
The cooling system regulates engine operating tem-
perature. It allows the engine to reach normal oper-
ating temperature as quickly as possible, maintains
normal operating temperature and prevents over-
heating.
The cooling system also provides a means of heat-
ing the passenger compartment. The cooling system
is pressurized and uses a centrifugal water pump to
circulate coolant throughout the system. A water
manifold collects coolant from the cylinder heads. A
separate and remotely mounted, pressurized coolant
tank using a pressure/vent cap is used.
COOLING SYSTEM COMPONENTS
The cooling system consists of:
•
Charge Air Cooler
•
Electric Cooling Fan
•
An aluminum radiator with plastic side tanks
•
A radiator mounted fill vent valve
•
A separate pressurized coolant tank
•
A threaded-on, pressure/vent cap mounted to the
coolant tank
•
Cooling fan (mechanical)
•
Thermal viscous fan drive
•
Fan shroud
•
Thermostat
•
Coolant
•
Low coolant level sensor
•
Low coolant warning lamp
•
Coolant temperature gauge
•
Water pump
•
Hoses and hose clamps
XJ
COOLING SYSTEM
7 - 1
Summary of Contents for 200 Cherokee
Page 5: ...FASTENER IDENTIFICATION 4 INTRODUCTION XJ DESCRIPTION AND OPERATION Continued ...
Page 6: ...FASTENER STRENGTH XJ INTRODUCTION 5 DESCRIPTION AND OPERATION Continued ...
Page 8: ...METRIC CONVERSION CHART XJ INTRODUCTION 7 DESCRIPTION AND OPERATION Continued ...
Page 9: ...TORQUE SPECIFICATIONS 8 INTRODUCTION XJ DESCRIPTION AND OPERATION Continued ...
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Page 107: ...Fig 105 Gear Tooth Contact Patterns 3 60 TUBE 181 AND 186 FBI AXLE XJ ADJUSTMENTS Continued ...
Page 111: ...Installer D 144 Installer W 262 3 64 TUBE 181 AND 186 FBI AXLE XJ SPECIAL TOOLS Continued ...
Page 145: ...Fig 79 Gear Tooth Contact Patterns 3 98 194 RBI AXLE XJ ADJUSTMENTS Continued ...
Page 177: ...Fig 59 Gear Tooth Contact Patterns 3 130 8 1 4 REAR AXLE XJ ADJUSTMENTS Continued ...
Page 230: ...Fig 8 Clutch Components And Inspection XJ CLUTCH 6 5 DIAGNOSIS AND TESTING Continued ...
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Page 484: ...SPECIAL TOOLS HEADLAMP ALIGNMENT Headlamp Aiming Kit C 4466 A XJ LAMPS 8L 9 ...
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Page 1072: ...Fig 16 2 5L Engine XJ 8W 90 CONNECTOR LOCATIONS 8W 90 25 DESCRIPTION AND OPERATION Continued ...
Page 1073: ...Fig 17 4 0L Engine 8W 90 26 8W 90 CONNECTOR LOCATIONS XJ DESCRIPTION AND OPERATION Continued ...
Page 1074: ...Fig 18 4 0L Engine XJ 8W 90 CONNECTOR LOCATIONS 8W 90 27 DESCRIPTION AND OPERATION Continued ...
Page 1087: ...Fig 31 Liftgate 8W 90 40 8W 90 CONNECTOR LOCATIONS XJ DESCRIPTION AND OPERATION Continued ...
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Page 1331: ...Fig 6 Frame Dimensions 13 8 FRAME AND BUMPERS XJ SPECIFICATIONS Continued ...
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Page 1912: ...Fig 3 Hood Components XJ BODY 23 25 REMOVAL AND INSTALLATION Continued ...
Page 1955: ...WELD LOCATIONS UPPER COWL 23 68 BODY XJ SPECIFICATIONS Continued ...
Page 1956: ...UPPER COWL XJ BODY 23 69 SPECIFICATIONS Continued ...
Page 1957: ...COWL 23 70 BODY XJ SPECIFICATIONS Continued ...
Page 1958: ...A PILLAR XJ BODY 23 71 SPECIFICATIONS Continued ...
Page 1959: ...A PILLAR 23 72 BODY XJ SPECIFICATIONS Continued ...
Page 1960: ...A PILLAR XJ BODY 23 73 SPECIFICATIONS Continued ...
Page 1961: ...A PILLAR 23 74 BODY XJ SPECIFICATIONS Continued ...
Page 1962: ...B PILLAR XJ BODY 23 75 SPECIFICATIONS Continued ...
Page 1963: ...D PILLAR 23 76 BODY XJ SPECIFICATIONS Continued ...
Page 1964: ...FUEL FILLER OPENING XJ BODY 23 77 SPECIFICATIONS Continued ...
Page 1965: ...CARGO AREA FLOOR PAN 23 78 BODY XJ SPECIFICATIONS Continued ...
Page 1966: ...ROOF AND D PILLAR XJ BODY 23 79 SPECIFICATIONS Continued ...
Page 1967: ...LIFTGATE OPENING 23 80 BODY XJ SPECIFICATIONS Continued ...
Page 1968: ...ROOF XJ BODY 23 81 SPECIFICATIONS Continued ...
Page 1969: ...ROOF 23 82 BODY XJ SPECIFICATIONS Continued ...
Page 1970: ...FRAME RAIL XJ BODY 23 83 SPECIFICATIONS Continued ...
Page 1971: ...FRAME RAIL 23 84 BODY XJ SPECIFICATIONS Continued ...
Page 1972: ...FRAME RAIL XJ BODY 23 85 SPECIFICATIONS Continued ...
Page 1973: ...FRAME RAIL 23 86 BODY XJ SPECIFICATIONS Continued ...
Page 1974: ...REINFORCEMENT XJ BODY 23 87 SPECIFICATIONS Continued ...
Page 1975: ...FRONT INNER FENDER 23 88 BODY XJ SPECIFICATIONS Continued ...
Page 1976: ...FRONT INNER FENDER AND RADIATOR CLOSURE PANEL XJ BODY 23 89 SPECIFICATIONS Continued ...
Page 1977: ...REINFORCEMENT 23 90 BODY XJ SPECIFICATIONS Continued ...
Page 1978: ...FRONT FENDER XJ BODY 23 91 SPECIFICATIONS Continued ...
Page 1979: ...BODY SIDE 23 92 BODY XJ SPECIFICATIONS Continued ...
Page 1980: ...REAR WHEELHOUSE XJ BODY 23 93 SPECIFICATIONS Continued ...
Page 1981: ...REAR INNER WHEELHOUSE 23 94 BODY XJ SPECIFICATIONS Continued ...
Page 1982: ...BODY SIDE XJ BODY 23 95 SPECIFICATIONS Continued ...
Page 1983: ...BODY SIDE 23 96 BODY XJ SPECIFICATIONS Continued ...
Page 1984: ...BODY SIDE XJ BODY 23 97 SPECIFICATIONS Continued ...
Page 1985: ...BODY SIDE 23 98 BODY XJ SPECIFICATIONS Continued ...
Page 1986: ...BODY SIDE XJ BODY 23 99 SPECIFICATIONS Continued ...
Page 1987: ...BODY SIDE 23 100 BODY XJ SPECIFICATIONS Continued ...
Page 1988: ...UNDERBODY XJ BODY 23 101 SPECIFICATIONS Continued ...
Page 1989: ...UNDERBODY 23 102 BODY XJ SPECIFICATIONS Continued ...
Page 1990: ...UNDERBODY XJ BODY 23 103 SPECIFICATIONS Continued ...
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Page 1992: ...UNDERBODY XJ BODY 23 105 SPECIFICATIONS Continued ...
Page 1993: ...UNDERBODY 23 106 BODY XJ SPECIFICATIONS Continued ...
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Page 1997: ...UNDERBODY 23 110 BODY XJ SPECIFICATIONS Continued ...
Page 1998: ...UNDERBODY XJ BODY 23 111 SPECIFICATIONS Continued ...
Page 1999: ...BODY SEALING LOCATIONS APPLICATION METHODS 23 112 BODY XJ SPECIFICATIONS Continued ...
Page 2000: ...COWL AND DASH PANEL XJ BODY 23 113 SPECIFICATIONS Continued ...
Page 2001: ...DASH PANEL AND FLOOR PAN 23 114 BODY XJ SPECIFICATIONS Continued ...
Page 2002: ...FLOOR PAN XJ BODY 23 115 SPECIFICATIONS Continued ...
Page 2003: ...REAR INNER WHEELHOUSE 23 116 BODY XJ SPECIFICATIONS Continued ...
Page 2004: ...FRONT INNER WHEELHOUSE XJ BODY 23 117 SPECIFICATIONS Continued ...
Page 2005: ...BODY SIDE 23 118 BODY XJ SPECIFICATIONS Continued ...
Page 2006: ...BODY SIDE XJ BODY 23 119 SPECIFICATIONS Continued ...
Page 2007: ...BODY SIDE 23 120 BODY XJ SPECIFICATIONS Continued ...
Page 2008: ...ROOF PANEL XJ BODY 23 121 SPECIFICATIONS Continued ...
Page 2009: ...FUEL FILLER HOUSING 23 122 BODY XJ SPECIFICATIONS Continued ...
Page 2010: ...LIFTGATE OPENING XJ BODY 23 123 SPECIFICATIONS Continued ...
Page 2011: ...STRUCTURAL ADHESIVE LOCATIONS LEFT QUARTER PANEL 23 124 BODY XJ SPECIFICATIONS Continued ...
Page 2012: ...REAR WHEELHOUSE XJ BODY 23 125 SPECIFICATIONS Continued ...
Page 2013: ...ROOF BOWS 23 126 BODY XJ SPECIFICATIONS Continued ...
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