XJ XJ8 / XJR ( X308 ) 1997 - 2003

Can only get 5L of coolant in.....?

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Old 12-21-2018, 07:04 PM
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Default Can only get 5L of coolant in.....?

Hello everyone,

I have just replaced the tensioners & guides. An epic job as we all know but it now lives again & is running great with the following exception......

Im not sure why I can only get 5 litres of coolant into the system. The water pump is working, same for the thermostat as im getting flow through the expansion tank each time i squeeze a hose or blip the throttle. I did notice that only the upper half of radiator is getting hot so maybe a blockage in the radiator? One hose is nice & toasty but the other hose is not. Am I missing something really basic?

Also, Im getting the restricted performance notification. But that might be from the coolant splashing on the plugs & causing a short because I forgot to do up the coolant filler point before i started it & it spouted up everywhere. Also havent connected the thermofans or temp sensor yet.
 
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Old 12-21-2018, 07:11 PM
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You will get restricted performance if the sensor is unplugged.

If you drained the coolant through the radiator, you will get less in, as there remains a large amount in the engine itself.
The is an engine drain plug on the side of the block if you want to do a further flush.
 
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Old 12-21-2018, 07:43 PM
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Originally Posted by ericjansen
You will get restricted performance if the sensor is unplugged.

If you drained the coolant through the radiator, you will get less in, as there remains a large amount in the engine itself.
The is an engine drain plug on the side of the block if you want to do a further flush.
Ah that explains it. Thank you ^_^
 
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