TSB's

Leaky Vette

This bulletin applies to 2016-2018 Chevy Corvettes equipped with a 6.2L LT1/LT4 engine. The vehicle may have a concern with coolant loss and/or coolant odor. If the coolant is low, pressure test the cooling system to check for leaks at the outer cylinder head bolts.

According to GM, if a leak is found at one or more cylinder head bolt locations, the cylinder head should be replaced.

Note this example where coolant leaks are found at an outer cylinder head bolt.
<p>Note this example where coolant leaks are found at an outer cylinder head bolt. </p>

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