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Coolant Disappearing

jschavis
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jschavis New Member

jschavis

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I have a 2018 Silverado 5.3 34k miles. I keep losing coolant. The dealership has pressure tested it several times. They have even tested the block itself. But they haven't found any leaks. I just had to replace the thermostat because of the low temp. But there were no signs of leaks or coolant smell anywhere. I even checked the reservoir for cracks or leaks...none! Anyone has any suggestions or advice?

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JimCost2014 Senior Enthusiast

JimCost2014

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2 hours ago, jschavis said:

I have a 2018 Silverado 5.3 34k miles. I keep losing coolant. The dealership has pressure tested it several times. They have even tested the block itself. But they haven't found any leaks. I just had to replace the thermostat because of the low temp. But there were no signs of leaks or coolant smell anywhere. I even checked the reservoir for cracks or leaks...none! Anyone has any suggestions or advice?

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