Moose McAlpine
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- Norf Lund'n
Couldn't find a leak and neither could the garage with CO tester.
So disapearing coolant must have been from a leaky thermostate houding. Lucky me.
Did they pressure test the cooling system?
Negative CO test rules out headgasket failure as being cause of coolant loss, so that's good to hear.
With some faults you end up needing to do 2-3 different tests to pinpoint the cause and even that can be difficult or inconclusive.