Coolant diagram XJR 2004
#1
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Hi guys.
I've had a look in the workshop manual but can't find what I'm looking for.
Trying to locate a coolant leak on RHS of engine bay, could do with a diagram of the cooling system to give me a head start, does anyone have one? Doesn't seem to be much on Google either.
The leak is not obvious from above the engine bay looking down.
Any help appreciated.
I've had a look in the workshop manual but can't find what I'm looking for.
Trying to locate a coolant leak on RHS of engine bay, could do with a diagram of the cooling system to give me a head start, does anyone have one? Doesn't seem to be much on Google either.
The leak is not obvious from above the engine bay looking down.
Any help appreciated.
#4
Join Date: Jan 2012
Location: Newport Beach, California
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XJR_hunter (01-12-2023)
#6
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Rear-engine leak sources for the supercharged 4.2 include:
If you are losing coolant that quickly, you might want to rent a pressure tester, such a large leak could show up under pressurization. Good luck with it.
- EGR
- throttle body
- HVAC lines (far back against the firewall)
- the dreaded valley hose
If you are losing coolant that quickly, you might want to rent a pressure tester, such a large leak could show up under pressurization. Good luck with it.
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XJR_hunter (01-13-2023)
#7
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Thanks so much! Thankfully the dreaded valley hose was replaced when the supercharger was ported. Will check the others out. Don't suppose you have a diagram of where they are?
Another thing, the leak isn't constant, only seems to happen when the engine us up to temp, not sure if that makes a difference or not...
Another thing, the leak isn't constant, only seems to happen when the engine us up to temp, not sure if that makes a difference or not...
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XJR_hunter (01-13-2023)
#9
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Good point! Thanks for that.
Another thing, what temp should the cars run at when cruising? I had the torque app running last week and the car was sitting at 102°C, which went down to about 96 when I turned the heating to maximum and turned the blower to full. Could my thermostat be faulty or does this seem ok?
Another thing, what temp should the cars run at when cruising? I had the torque app running last week and the car was sitting at 102°C, which went down to about 96 when I turned the heating to maximum and turned the blower to full. Could my thermostat be faulty or does this seem ok?
#10
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#13
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Just updating for future reference (I hate it when threads suddenly go dead without a resolution), the pipe is part number C2C24690 and looks easy to replace. All I have to do is find a new genuine one in the UK.
If anyone has one please let me know.
Thanks for all your help guys, you're all great 😃
If anyone has one please let me know.
Thanks for all your help guys, you're all great 😃
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