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Old Sep 26, 2017 | 01:45 PM
  #1  
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Default Long Time Jag owner

I have owned my 97 XK8 for 13 years now and it is still my favorite car to drive. It has always been stored in the winter and it just turned over 170,000 Km.
I have just encountered a new problem with the engine coolant. The coolant low warning came on and it required 2 small cups of water to top up the tank. I drove it about 200 Km and he coolant low message came back on. After the car had been parked for about 30 min., I checked under the car and saw coolant discharge under the engine area where the overflow tube is. I waited overnight and checked the reservoir tank and it is now empty. It has been around 90 F here and I would expect maximum expansion of the coolant, but not to the extent observed. I can top up the tank with coolant again, but I do not think this will resolve my problem. I am not sure what would cause the coolant system to discharge that amount of fluid, and then when it cools to suck the tank dry. The engine temp gauge indicted normal operating temperature during the entire trip. Any suggestions?

Thank you
 
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Old Sep 27, 2017 | 04:20 AM
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Welcome.

My first suggestion is always, replace the pressure cap, then move on to Plan A,B,C etc.
 
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Old Sep 27, 2017 | 05:14 AM
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Welcome to the forum.
 
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Old Sep 27, 2017 | 06:05 AM
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Welcome to Jaguar Forums M003thomas,

Good to have you with us.
I've copied your post to the tech section follow this link to find it https://www.jaguarforums.com/forum/x...roblem-189830/
Enjoy the forum.

If you haven't done so already you should add your car details to your signature to help others to help you.
If you need help with getting around and using the forum follow this link for some help Forum Help
 
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Old Sep 27, 2017 | 06:12 AM
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I would be checking the tank for leaks if the coolant that is leaking is anywhere near that spot.
 
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Old Sep 27, 2017 | 07:48 AM
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welcome to the forum - enjoy!!
 
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Old Sep 27, 2017 | 09:40 AM
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Welcome to the forums from ElinorB.
(';')
 
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Old Sep 27, 2017 | 09:55 AM
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Thank you all for the warm welcome.
Is the coolant tank cap the pressure cap?
 
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Old Sep 27, 2017 | 04:50 PM
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Welcome aboard.
 
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Old Sep 28, 2017 | 03:09 AM
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Welcome to the forum M003thomas.

YES - coolant tank cap = pressure cap.

Graham
 
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Old Sep 28, 2017 | 06:03 PM
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I ordered a new cap, and Will receive it in a week. I will update as soon as I can test it out.
Thank you for the swift and great ideas,

Thank you.

M003thomas
 
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