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Q: smokes only at idle on 2004 Chevrolet Silverado 3500

I have white smoke out the exhaust only at idle. I checked antifreeze level and I know that is not burning that.

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you wont notice coolant loss when burning. it would take a while before you noticed any loss. i would have the cylinders checked for leak down. i believe you will find a head gasket or cracked head issue.

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