Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
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white smoke comes from burning coolant. there is a leak that is getting into the cylinders. it could be from a failed head gasket or a bad intake manifold gasket. the real way to verify it is to do a leak down test on the cylinders. you remove the plugs and insert a tester into the cylinder and air up the cylinder, one at a time, with shop air and check for air bubbles in the radiator.
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