1994 JAGUAR XJ6 coolant

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Page 64 of 521

JAGUAR XJ6 1994 2.G Workshop Manual SECTION CON TENTS 
Subsection Titie SRO Page 
it0 IV ............ Preliminarypages .................................................................... i 
4.2.1 ............. Cooling  System Descripti

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JAGUAR XJ6 1994 2.G Workshop Manual Lower radiator cradle to body 
Radiator  drain plug 
1,5-2,5 
Radiator  temperature  switch  13-17 
Receiver  drier to cooling  fan assembly 
Top  radiator  panel to body  7
-1 0 
2,5-3,5 
7-10 
111.

Page 66 of 521

JAGUAR XJ6 1994 2.G Workshop Manual Cooling System (V12 
4.2.1 COOLING  SYSTEM DESCRIPTION I 
4.2.1.1 Major Components 
o Engine crossflow  radiator, incorporating a concentric tube cooler  for the power steering  fluid mounted  in the

Page 67 of 521

JAGUAR XJ6 1994 2.G Workshop Manual Cooling System (VI 2) 
0 
4.2.2 COOLING SYSTEM CONFIGURATION 
Theconfigurationofthecooling  system isshown in Fig. 1. Themaincoolantflows,withthesystem at normaloperating 
temperature  (i.e. with the

Page 68 of 521

JAGUAR XJ6 1994 2.G Workshop Manual WARNING: DO NOT  REMOVE  THE HEADER  TANK PRESSURE  CAP WHILE  THE ENGINE IS HOT.  IF THE CAP  MUST 
BE  REMOVED,  PROTECT THE HANDS  AGAINST  ESCAPING  STEAM AND  SLOWLY TURN THE CAP  ANTI- CLOCKWISE

Page 69 of 521

JAGUAR XJ6 1994 2.G Workshop Manual €3 Cooling System (V12) 
4.2.4 DRAIN AND FILL PROCEDURES 
4.2.4.1  Radiator, Drain 
. Place a drain tray in position  under the radiator drain plug 
. Remove  the headertank  pressure cap.  Release

Page 70 of 521

JAGUAR XJ6 1994 2.G Workshop Manual 4.2.5.2 Diagnostic  Procedures 
1 
I Symptom .. 
Overheating 
herheating at 
dle 
roo cold  ~~~ 
Possible Cause 
Thermostat(s) stuck 
closed 
Incorrect  thermostat  rating 
Faulty  temperature  gauge

Page 71 of 521

JAGUAR XJ6 1994 2.G Workshop Manual rn Cooling System (VI 2) 
Diagnostic Procedures  (continued) 
Symptom 
-0ss of cool- 
ant 
Possible Cause 
Loose  clips on hoses 
Hoses  perished 
Radiator  core leaking 
Water  pump seal leaking 
The