XJ XJ6 / XJ8 / XJR ( X350 & X358 ) 2003 - 2009

coolant leak 2005 XJ8L

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Old May 26, 2023 | 01:03 PM
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ronrowand's Avatar
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Default coolant leak 2005 XJ8L

[QUOTE]Losing 1 quart every 100 miles consistently. Mechanic has twice pressure tested overnight with no loss. Ideas?
 
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Old May 26, 2023 | 05:46 PM
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I can only assume that it leaks only when the engine is hot.
Maybe start with a hot engine in the morning and run test during the day
also running the engine periodically to keep it hot.
 
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