Most likely blown head gasket. Check engine oil dip stick for presence of coolant in the oil ( Milky). Also excessive vapor (steam) at exhaust pipe, while engine is running.
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SOURCE: Water pump problem?
You need to make sure you don’t have an air lock. Find the bleeder valve for the coolant system and release the air. If you can’t find the bleeder, find the highest hose for the coolant system and make sure coolant is flowing through it.
SOURCE: 2004 Jaguar X Type... fan continues to run for
your thermostat is not openning properly change it and flush your radiator out and put fresh antifreeze
SOURCE: jaguar 23 boiler is overheating sending water
pressure test to see if theres a leak,check water pump,thermostat,head gasket,something isnt right 100%,may have blown head gasket needs to be looked at by experienced mechanic
SOURCE: Hi Have a 2004 Jaguar S-Type that keeps
The 12-cylinder engine is a hot-running engine to begin with, so if
you've changed thermostats, did you install one that opens at a lower
temperature? (that depends on your local climate too, but your
thermostat may be stuck-closed, or opening at a higher temp than
desired).
does your car have an Auxiliary Electric Fan or two?,(in front of the
radiator?), Is it coming ON when the gauge reaches a
certain temperature? If not, the auxiliary fan Relay, Fuse,
or Thermo-Switch (if applicable) may be bad. I am
guessing here because I am not familiar with the particular model, but
the 12-cylinder engine since the 1970's has a pair of electric
"air-pusher" Fans which came wired from the factory to come ON and stay
ON as long as the A/C compressor is ON. In other words, they should run
as soon as you turn theclimate control to ON. Compare that to the XJ-6
which has a Thermo-Switch to control the temperature at which the
Auxiliary Fan comes ON.
All the above assumes your Cylinder Head Gasket is good, and that you
have the required mix and quantity of coolant & water in the
system. A product called "Water-Wetter" might help with lowering the
temp, you just add it to the coolant/water mix. It is usedin race cars.
Whenever topping up the coolant, start with a COLDengine, turn the
HeaterON to maximum temperature so thatthe Heater Valve opens when the
engine reaches operating temp and allows coolant to fill the Heater
system too.
And last: is the Water Pump good? No leaking through the "weep hole" ?
SOURCE: My Jaguar Xtype 2L diesel 05 wont start in the
Sounds like you have a current drain on the battery even when switch off. With the ignition off put a ammeter between the negative lead and the negative terminal of the battery and measure the current drain. If detected now remove and reinsert each fuse in turn noting the change in current flow. By this process you will isolate the offending circuit. Interior glove-box or trunk lights can be the very devil since like a fridge light you can never tell if they go off when they should.
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